CN115114797A - Method and device for determining winter irrigation scheme of irrigation area, computer equipment and storage medium - Google Patents
Method and device for determining winter irrigation scheme of irrigation area, computer equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the invention relates to a method and a device for determining a winter irrigation scheme of an irrigation area, computer equipment and a storage medium, wherein the method comprises the following steps of: constructing a water circulation model aiming at the target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area; simulating a water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes through the water circulation model; determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process; and calculating a partial derivative function of the change process curve, and determining a target winter irrigation scheme based on the partial derivative function, so that the appropriate water quantity of the winter irrigation in the irrigation area can be determined by a mechanism analysis and model simulation method from the perspective of efficient utilization of water resources, and a scientific basis is provided for reasonable utilization of the water resources in the irrigation area.
Description
Technical Field
The embodiment of the invention relates to the field of research on efficient utilization of water resources in irrigated areas, in particular to a method and a device for determining a winter irrigation scheme in irrigated areas, computer equipment and a storage medium.
Background
The winter irrigation is a traditional irrigation behavior, is a one-time non-growing irrigation work carried out after crops are harvested and before soil is frozen, and has the effects of storing water, preserving soil moisture, washing salt, preventing and treating plant diseases and insect pests, adjusting the pressure of the next spring irrigation, eliminating pupae, improving the soil structure and the like. The irrigation time of winter irrigation is more centralized, the irrigation quantity is larger, the current winter irrigation system is formed by practice summary of the masses in irrigation areas according to local air temperature, soil, water source and planting conditions, and scientific and quantitative analysis of irrigation suitability of the irrigation system does not form a clear conclusion. In recent years, aiming at the problem of serious shortage of water resources, water conservancy departments develop relevant research work of a proper winter irrigation mode, try to determine proper winter irrigation water quantity of irrigation areas, and provide scientific and technological support for efficient utilization of water resources of the irrigation areas.
At present, the winter irrigation system continues the traditional irrigation habit and is formed by practice summary, but the effective irrigation water ratio of the general winter irrigation is low, the winter irrigation water has a large water-saving space, and because the winter irrigation function and the influence mechanism are complex, no clear method exists for determining the proper winter irrigation water, so that from the perspective of efficient utilization of water resources, the proper winter irrigation water in an irrigation area is determined by a mechanism analysis and model simulation method, and a scientific basis is provided for reasonable utilization of the water resources in the irrigation area, so that the problem to be solved urgently is solved.
Disclosure of Invention
In view of this, to solve the technical problems or some technical problems, embodiments of the present invention provide a method and an apparatus for determining a winter irrigation scheme in an irrigation area, a computer device, and a storage medium.
In a first aspect, an embodiment of the present invention provides a method for determining a winter irrigation scheme in an irrigation area, including:
constructing a water circulation model aiming at the target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area;
simulating a water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes through the water circulation model;
determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process;
calculating a partial derivative function of the change process curve, and determining a target winter irrigation scheme based on the partial derivative function.
In one possible embodiment, the method further comprises:
and verifying the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes, wherein the verification contents at least comprise water surface evaporation verification, target irrigation area drainage verification and underground water level verification.
In one possible embodiment, the method further comprises:
acquiring evaporation information of evaporation pan water surface measurement in a preset time period of all weather stations in the target irrigation area;
and verifying the water surface evaporation of the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the evaporation dish water surface evaporation information.
In one possible embodiment, the method further comprises:
acquiring drainage information issued by an official in the target irrigation area within a preset time period;
and verifying the drainage condition of the target irrigation area corresponding to the plurality of winter irrigation schemes simulated by the water circulation model based on the drainage information.
In one possible embodiment, the method further comprises:
acquiring underground water level actual measurement information of all underground water observation wells in the target irrigation area within a preset time period;
and verifying the underground water level of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the measured information.
In one possible embodiment, the method further comprises:
a verification result is determined by a plurality of verification parameters, wherein the plurality of verification parameters includes at least a relative error, a correlation coefficient, and a deterministic efficiency coefficient.
In one possible embodiment, the method further comprises:
and determining the water consumption and saving amount corresponding to the plurality of winter irrigation schemes based on the rated water amount corresponding to the plurality of winter irrigation schemes and the water circulation model simulation, and constructing a curve of the change process of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation schemes.
In one possible embodiment, the method further comprises:
and fitting the change process curve to obtain a fitted target change process curve.
In one possible embodiment, the method further comprises:
calculating a partial derivative function of the target change process curve to form a change curve of the rated water amount and the partial derivative function value of a plurality of winter irrigation schemes;
and taking the winter irrigation scheme corresponding to the extreme point in the change curve as a target winter irrigation scheme.
In a second aspect, an embodiment of the present invention provides an irrigation area winter irrigation scheme determining device, including:
the building module is used for building a water circulation model aiming at the target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area;
the simulation module is used for simulating the water circulation process of the target irrigation areas corresponding to the multiple winter irrigation schemes through the water circulation model;
the determining module is used for determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process;
the determining module is further configured to calculate a partial derivative function of the variation process curve, and determine a target winter irrigation scheme based on the partial derivative function.
In a third aspect, an embodiment of the present invention provides a computer device, including: the processor is configured to execute the irrigation area winter irrigation scheme determination program stored in the memory, so as to implement the irrigation area winter irrigation scheme determination method in the first aspect.
In a fourth aspect, an embodiment of the present invention provides a storage medium, including: the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the irrigation area winter irrigation scheme determination method described in the first aspect.
According to the irrigation area winter irrigation scheme determination scheme provided by the embodiment of the invention, a water circulation model for a target irrigation area is constructed based on a WACM model and the water circulation characteristics of the target irrigation area; simulating a water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes through the water circulation model; determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process; and calculating a partial derivative function of the change process curve, and determining a target winter irrigation scheme based on the partial derivative function.
Drawings
Fig. 1 is a schematic flow chart of a method for determining a winter irrigation scheme in an irrigation area according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of water surface evaporation verification according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a target irrigation area drainage verification according to an embodiment of the present invention;
fig. 4 is a graph illustrating a result of a simulation effect of drainage and a calculation result of statistical indexes of a target irrigation area according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of underground water level verification according to an embodiment of the present invention;
fig. 6 is a 2017 typical month groundwater level burial depth space distribution diagram of a target irrigation area provided by the embodiment of the invention;
fig. 7 is a schematic flow chart of another method for determining a winter irrigation scheme in an irrigation area according to an embodiment of the present invention;
FIG. 8 is a graph showing a variation of water consumption and water saving under different winter irrigation schemes according to an embodiment of the present invention;
FIG. 9 is a graph of water consumption and water conservation rate curves for different winter irrigation scenarios according to a fit provided by an embodiment of the present invention;
fig. 10 is a graph showing a variation of the rated water amount and the deviation function value of different winter irrigation schemes according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a device for determining a winter irrigation scheme in an irrigation area according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a computer device according to an embodiment of the present invention;
fig. 13 is a diagram illustrating results of verification and statistical index calculation for an underground water observation well according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding of the embodiments of the present invention, the following description will be further explained with reference to specific embodiments, which are not to be construed as limiting the embodiments of the present invention.
Fig. 1 is a schematic flow chart of a method for determining a winter irrigation scheme in an irrigation area according to an embodiment of the present invention, and as shown in fig. 1, the method specifically includes:
s11, constructing a water circulation model aiming at the target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area.
In the embodiment of the invention, the relation between the winter irrigation and the water resource utilization in an irrigation area is firstly analyzed: the water consumption of the irrigated area winter irrigation is mainly through two aspects of earlier water surface evaporation and later soil evaporation, when the winter irrigation formed ponding surface, because the farmland retaining belongs to the broad and shallow type, can not increase the surface of water area along with the increase of water yield in step after the surface of water formed, this means that the surface of water evaporation of different water depths is equivalent, the water depth of excessive water does not actually produce special benefit, consequently, can think this part water yield can not need irrigation, thereby it is the reasonable winter irrigation water yield to confirm that the irrigation water yield when the water depth is zero, the evaporation in irrigated area also appears the sudden change this moment, because irrigated area evaporation form is changed into soil evaporation by the surface of water evaporation, and the surface of water evaporation area becomes zero. Based on the method, when the evaporation of the farmland is changed from water evaporation to soil evaporation, a mutation point exists in the evaporation of the irrigation area, the processes of evaporation and the like are simulated through a water circulation model of the irrigation area, the winter irrigation schemes with different gradients are set, the change curve of the evaporation of the irrigation area along with the winter irrigation water quantity is simulated and analyzed, and the mutation point is found, so that the winter irrigation water quantity is the proper winter irrigation water quantity.
A water circulation model for a target irrigation area is constructed based on a WACM (Water Allocation and Cycle model) model and the water circulation characteristics of the target irrigation area, the complex natural-to-social water circulation process of the target irrigation area under the influence of strong human activities is simulated, the process comprises the processes of evaporation, the motion process from the earth surface to the soil and then to the underground water, the farmland irrigation process, the snow and snow melting process, the industrial and domestic water process, water resource Allocation and the like, and an analysis tool is provided for determining the proper water quantity for winter irrigation of the target irrigation area. The water circulation model can adopt a WACM (Water Allocation and Cycle model) model, can realize the refined simulation of the complex water circulation process of the oasis and the irrigation areas, and has been applied and verified in reality.
And S12, simulating the water circulation process of the target irrigation areas corresponding to the multiple winter irrigation schemes through the water circulation model.
In the embodiment of the invention, firstly, through optimizing the winter irrigation system, the minimum winter irrigation water scheme is sought while the requirement of supplementing the soil moisture of the root system layer to meet the water demand of crops is met, so that the water utilization efficiency is effectively improved, the water-saving target of farmland irrigation is realized, different grades of winter irrigation schemes can be set based on the current target irrigation area winter irrigation quota, and each winter irrigation scheme is specifically shown in table 1:
TABLE 1
Through the water circulation model constructed above, the water circulation process under different winter irrigation schemes can be simulated.
And S13, determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process.
S14, calculating a partial derivative function of the change process curve, and determining a target winter irrigation scheme based on the partial derivative function.
Determining a curve of the change process of the water consumption and water conservation amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process of different winter irrigation schemes simulated by a water circulation model, fitting the process curve of the water consumption and water conservation amount along with the change of the winter irrigation scheme for finding an inflection point of the change of the water consumption and water conservation amount, and solving a partial derivative function of the fitted curve to obtain an extreme point of the fitted curve, wherein the change rate of the water consumption and water conservation amount corresponding to the extreme point is minimum, and the winter irrigation scheme corresponding to the extreme point is the finally determined optimal target winter irrigation scheme.
It should be noted that after the water circulation model simulates the water circulation process of the target irrigation areas corresponding to the multiple winter irrigation schemes, the simulation result needs to be verified, wherein the verification content at least includes water surface evaporation verification, target irrigation area drainage verification and underground water level verification. For quantitatively verifying the simulation accuracy of the model, a relative error Re and a correlation coefficient R can be adopted 2 And the deterministic efficiency coefficient NSE, and the specific verification method is described in the following examples, which will not be described in detail.
The method for determining the winter irrigation scheme of the irrigation area comprises the steps of constructing a water circulation model aiming at a target irrigation area based on a WACM model and the water circulation characteristics of the target irrigation area; simulating a water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes through the water circulation model; determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process; compared with the prior art that no clear method for determining the proper water quantity of the winter irrigation is available, the method can determine the proper water quantity of the winter irrigation in the irrigation area through a mechanism analysis and model simulation method from the perspective of efficient utilization of water resources, and provides scientific basis for reasonable utilization of the water resources in the irrigation area.
Fig. 2 is a schematic flow chart of water surface evaporation verification provided in an embodiment of the present invention, and as shown in fig. 2, the method specifically includes:
and S21, acquiring evaporation information of the evaporation pan water surface in the preset time period of all weather stations in the target irrigation area.
S22, verifying water surface evaporation of the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the evaporation dish water surface evaporation information.
In the embodiment of the invention, after the water circulation model simulates the water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes, the water surface needs to be evaporatedThe simulation result is verified, the water surface evaporation verification can be performed by adopting the water surface evaporation information measured by the evaporation vessels of all meteorological stations in all counties and districts in the target irrigation area within the preset time, and the water surface evaporation simulation effect and the calculation result of the statistical index of the target irrigation area are shown in the table 2. R of measured and simulated water surface evaporation values 2 The water surface evaporation simulation precision is higher than 0.9, the NSE is higher than 0.8, and the Re is less than 13%.
TABLE 2
The water surface evaporation verification method provided by the embodiment of the invention can verify the precision of the water circulation model for simulating the water circulation process of the target irrigation areas corresponding to the multiple winter irrigation schemes, and improve the simulation accuracy and reliability of the water circulation model.
Fig. 3 is a schematic flow chart of a target irrigation area drainage verification provided in an embodiment of the present invention, and as shown in fig. 3, the method specifically includes:
and S31, acquiring drainage information in a preset time period issued by the official in the target irrigation area.
S32, verifying the drainage condition of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the drainage information.
In the embodiment of the invention, after the water circulation model simulates the water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes, the water drainage verification of the target irrigation areas is needed, the water drainage process can be verified by adopting drainage information in a preset time period issued by an official party, the water drainage simulation effect and the calculation result of the statistical index of the irrigation areas in the research area are shown in a graph of the water drainage simulation effect and the calculation result of the statistical index of the target irrigation areas provided by the embodiment of the invention in fig. 4, and the R of three actual measured values and simulation values of the water drainage of the irrigation areas is shown in a graph of the water drainage simulation effect and the calculation result of the statistical index of the target irrigation areas 2 The simulation accuracy is general when the NSE is more than 0.63, but the NSE is smaller, the Re is less than 12%, and the inspection analysis shows that the reason for the simulation is that the drainage monitoring of the target irrigation area is mainly larger drainage ditches and the drainage of the small drainage ditches is mainly causedThe quantities are only empirically estimated with or without monitoring data, and therefore the water circulation model can be considered to meet the accuracy requirements for the simulation of drainage.
The target irrigation area drainage verification method provided by the embodiment of the invention can verify the precision of the water circulation model for simulating the water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes, and improve the simulation accuracy and reliability of the water circulation model.
Fig. 5 is a schematic flow chart of the underground water level verification provided in the embodiment of the present invention, and as shown in fig. 5, the method specifically includes:
and S51, acquiring the measured underground water level information of all underground water observation wells in the target irrigation area within a preset time period.
S52, verifying the underground water level of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the measured information.
In the embodiment of the invention, after the water circulation model simulates the water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes, the underground water level simulation result needs to be verified, and the underground water level burial depth can be verified by adopting the underground water actual measurement information in the preset time period of all underground water observation wells in the target irrigation areas, as shown in fig. 13, the underground water level actual measurement value and the R of the simulation value 2 More than 0.71, NSE is basically more than 0.56, R e The simulation result and the actual monitoring result are well fitted, and the actual change characteristics can be well reflected on the change trend. As shown in fig. 6, which is a typical monthly groundwater level burial depth spatial distribution diagram in 2017 of a target irrigation area provided by the embodiment of the present invention, groundwater level spatial distribution simulation results in months 3, 5, 10 and 11 in 2017 can substantially reflect the actually monitored water level spatial distribution conditions, and the simulation effect is good.
The method for verifying the underground water level of the target irrigation area, provided by the embodiment of the invention, can verify the precision of the water circulation process of the target irrigation area corresponding to a plurality of winter irrigation schemes simulated by the water circulation model and improve the simulation accuracy and reliability of the water circulation model.
Fig. 7 is a schematic flow chart of another method for determining a winter irrigation scheme in an irrigation area according to an embodiment of the present invention, and as shown in fig. 7, the method specifically includes:
s71, determining water consumption and water saving amount corresponding to the multiple winter irrigation schemes based on the rated water amount corresponding to the multiple winter irrigation schemes and the water circulation model simulation, and constructing a variation process curve of the water consumption and water saving amount of the target irrigation area along with the rated water amount of the winter irrigation schemes.
In the embodiment of the invention, firstly, through optimizing the winter irrigation system, the minimum winter irrigation water scheme is sought while the water requirement of crops is met by supplementing the soil moisture of the root system layer, so that the water utilization efficiency is effectively improved, the water-saving target of field irrigation is realized, different grades of winter irrigation schemes can be set based on the current target irrigation area winter irrigation quota, each winter irrigation scheme is specifically as shown in the table 1, the water circulation process of different winter irrigation schemes is simulated through a water circulation model, the change of the oasis water consumption water-saving quantity under different schemes is contrastively analyzed, the water consumption corresponding to a plurality of winter irrigation schemes is simulated based on the quota water quantity corresponding to the plurality of winter irrigation schemes and the water circulation model, then the water consumption water-saving quantity is calculated according to the difference value of the water consumption of the E0 scheme and other winter irrigation schemes, the change process curve of the water consumption water-saving quantity of the target irrigation area along with the quota water quantity of the winter irrigation scheme is constructed, the curve of the change process is shown in fig. 8, and is a change curve of water consumption and water saving amount under different winter irrigation schemes, and it can be seen from the curve that the water consumption and water saving amount of oasis is synchronously reduced along with the increase of rated water amount of winter irrigation.
And S72, fitting the change process curve to obtain a fitted target change process curve.
In the embodiment of the invention, in order to find the inflection point of the change of the water consumption and water conservation quantity, the curve of the change process of the water consumption and water conservation quantity along with the rated water quantity of winter irrigation is subjected to fitting treatment to obtain a fitted target change process curve, and the fitted target change process curve is shown in fig. 9.
And S73, calculating a partial derivative function of the target change process curve to form a plurality of change curves of the rated water quantity and the partial derivative function value of the winter irrigation scheme.
Further, a partial derivative function is calculated for the target change process curve to form a plurality of change curves of the rated water amount and the partial derivative function value of the winter irrigation scheme, as shown in fig. 10.
And S74, taking the winter irrigation scheme corresponding to the extreme point in the change curve as a target winter irrigation scheme.
According to the change curve of the rated water quantity and the deviation function value of the multiple winter irrigation schemes, the extreme point of the curve is that when the rated water quantity of the winter irrigation scheme is 175 cubic meters per mu, the corresponding change rate of the water consumption and the water saving quantity is the minimum, the target winter irrigation scheme can be determined to be the scheme corresponding to the rated water quantity of the winter irrigation scheme being 175 cubic meters per mu, and the rated water quantity of the winter irrigation scheme being 175 cubic meters per mu.
The method for determining the winter irrigation scheme of the irrigation area comprises the steps of constructing a water circulation model aiming at a target irrigation area based on a WACM model and the water circulation characteristics of the target irrigation area; simulating a water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes through the water circulation model; determining a change process curve of the water consumption and water saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process; and calculating a partial derivative function of the change process curve, and determining a target winter irrigation scheme based on the partial derivative function.
Fig. 11 is a schematic structural diagram of a device for determining a winter irrigation scheme in an irrigation area, which includes:
a building module 1101, configured to build a water circulation model for a target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area;
the simulation module 1102 is configured to simulate, through the water circulation model, a water circulation process of the target irrigation area corresponding to the multiple winter irrigation schemes;
a determining module 1103, configured to determine, based on the water circulation process, a curve of a change process of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme;
the determining module 1103 is further configured to calculate a partial derivative function of the variation process curve, and determine a target winter irrigation scheme based on the partial derivative function.
In one possible embodiment, the apparatus further comprises: and the verification module 1104 is used for verifying the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes, wherein the verification contents at least comprise water surface evaporation verification, target irrigation area drainage verification and underground water level verification.
In a possible embodiment, the verification module 1104 is specifically configured to obtain evaporation water surface evaporation information of evaporation pans in a preset time period of all weather stations in the target irrigation area; and verifying the water surface evaporation of the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the evaporation dish water surface evaporation information.
In a possible embodiment, the verification module 1104 is further configured to obtain drainage information issued by an authority of the target irrigation area within a preset time period; and verifying the drainage condition of the target irrigation area corresponding to the plurality of winter irrigation schemes simulated by the water circulation model based on the drainage information.
In a possible embodiment, the verification module 1104 is further configured to obtain measured groundwater level information of all groundwater observation wells in the target irrigation area within a preset time period; and verifying the underground water level of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the measured information.
In one possible implementation, the verification module 1104 is further configured to determine a verification result according to a plurality of verification parameters, wherein the plurality of verification parameters at least include a relative error, a correlation coefficient, and a deterministic efficiency coefficient.
In a possible embodiment, the determining module 1103 is specifically configured to determine water consumption and water saving amounts corresponding to a plurality of winter irrigation schemes based on the rated water amounts corresponding to the plurality of winter irrigation schemes and a water circulation model simulation, and construct a curve of a change process of the water consumption and water saving amount of the target irrigation area along with the rated water amounts of the winter irrigation schemes.
In a possible implementation manner, the determining module 1103 is further configured to perform fitting processing on the variation process curve to obtain a fitted target variation process curve.
In a possible embodiment, the determining module 1103 is further configured to calculate a partial derivative function of the target variation process curve, and form a variation curve of the rated water amount and the partial derivative function value of the plurality of winter irrigation schemes; and taking the winter irrigation scheme corresponding to the extreme point in the change curve as a target winter irrigation scheme.
The irrigation area winter irrigation scheme determining device provided in this embodiment may be the irrigation area winter irrigation scheme determining device shown in fig. 11, and may perform all the steps of the irrigation area winter irrigation scheme determining method shown in fig. 1 to 7, so as to achieve the technical effect of the irrigation area winter irrigation scheme determining method shown in fig. 1 to 7, and refer to the related descriptions of fig. 1 to 7, which are not described herein for brevity.
Fig. 12 is a schematic structural diagram of a computer device according to an embodiment of the present invention, where the computer device 1200 shown in fig. 12 includes: at least one processor 1201, memory 1202, at least one network interface 1204, and other user interfaces 1203. The various components in computer device 1200 are coupled together by a bus system 1205. It is understood that bus system 1205 is used to enable connected communication between these components. Bus system 1205 includes, in addition to a data bus, a power bus, a control bus, and a status signal bus. But for clarity of illustration the various buses are labeled as bus system 1205 in figure 12.
The user interface 1203 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It is to be understood that the memory 1202 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), synchlronous SDRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1202 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 1202 stores the following elements, executable units or data structures, or a subset thereof, or an expanded set thereof: an operating system 12021 and application programs 12022.
The operating system 12021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 12022 contains various applications such as a Media Player (Media Player), a Browser (Browser), and the like, and is used to implement various application services. Programs that implement methods in accordance with embodiments of the present invention may be included in applications 12022.
In the embodiment of the present invention, by calling a program or an instruction stored in the memory 1202, specifically, a program or an instruction stored in the application 12022, the processor 1201 is configured to execute method steps provided by various method embodiments, for example, including:
constructing a water circulation model aiming at the target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area; simulating a water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes through the water circulation model; determining a change process curve of the water consumption and water saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process; calculating a partial derivative function of the change process curve, and determining a target winter irrigation scheme based on the partial derivative function.
In one possible implementation manner, the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes is verified, wherein the verification contents at least comprise water surface evaporation verification, target irrigation area drainage verification and underground water level verification.
In one possible implementation mode, evaporation information of evaporation pan water surface measurement in a preset time period of all weather stations in the target irrigation area is obtained; and verifying the water surface evaporation of the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the evaporation dish water surface evaporation information.
In one possible implementation mode, acquiring drainage information in a preset time period issued by an official of the target irrigation area; and verifying the drainage condition of the target irrigation area corresponding to the plurality of winter irrigation schemes simulated by the water circulation model based on the drainage information.
In one possible implementation mode, acquiring underground water level actual measurement information of all underground water observation wells in the target irrigation area within a preset time period; and verifying the underground water level of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the measured information.
In one possible embodiment, the validation result is determined by a plurality of validation parameters, wherein the plurality of validation parameters includes at least a relative error, a correlation coefficient, and a deterministic efficiency coefficient.
In one possible implementation mode, water consumption and water saving quantities corresponding to the multiple winter irrigation schemes are determined based on the rated water quantities corresponding to the multiple winter irrigation schemes and a water circulation model simulation, and a variation process curve of the water consumption and water saving quantities of the target irrigation area along with the rated water quantities of the winter irrigation schemes is constructed.
In a possible embodiment, the variation process curve is subjected to fitting processing to obtain a fitted target variation process curve.
In one possible implementation mode, calculating a partial derivative function of the target change process curve to form a change curve of the rated water amount and the partial derivative function value of a plurality of winter irrigation schemes; and taking the winter irrigation scheme corresponding to the extreme point in the change curve as a target winter irrigation scheme.
The method disclosed by the embodiment of the invention can be applied to the processor 1201 or implemented by the processor 1201. The processor 1201 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 1201. The Processor 1201 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software elements in the decoding processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in the memory 1202, and the processor 1201 reads information in the memory 1202 and completes the steps of the above method in combination with hardware thereof.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented by means of units performing the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The computer device provided in this embodiment may be the computer device shown in fig. 12, and may execute all the steps of the method for determining the irrigation area winter irrigation scheme shown in fig. 1 to 7, so as to achieve the technical effect of the method for determining the irrigation area winter irrigation scheme shown in fig. 1 to 7, which is described with reference to fig. 1 to 7 for brevity, and is not described herein again.
The embodiment of the invention also provides a storage medium (computer readable storage medium). The storage medium herein stores one or more programs. Among others, storage media may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.
When the one or more programs in the storage medium are executed by the one or more processors, the method for determining the irrigation area winter irrigation scheme executed on the computer device side is implemented.
The processor is used for executing the irrigation area winter irrigation scheme determining program stored in the memory so as to realize the following steps of the irrigation area winter irrigation scheme determining method executed on the computer equipment side:
constructing a water circulation model aiming at the target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area; simulating a water circulation process of the target irrigation areas corresponding to the plurality of winter irrigation schemes through the water circulation model; determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process; calculating a partial derivative function of the change process curve, and determining a target winter irrigation scheme based on the partial derivative function.
In one possible implementation manner, the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes is verified, wherein the verification contents at least comprise water surface evaporation verification, target irrigation area drainage verification and underground water level verification.
In one possible implementation mode, evaporation information of evaporation pan water surface measurement in a preset time period of all weather stations in the target irrigation area is obtained; and verifying the water surface evaporation of the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the evaporation dish water surface evaporation information.
In one possible implementation mode, acquiring drainage information in a preset time period issued by an official of the target irrigation area; and verifying the drainage condition of the target irrigation area corresponding to the plurality of winter irrigation schemes simulated by the water circulation model based on the drainage information.
In one possible implementation mode, acquiring underground water level actual measurement information of all underground water observation wells in the target irrigation area within a preset time period; and verifying the underground water levels of the target irrigation areas corresponding to the plurality of winter irrigation schemes simulated by the water circulation model based on the actual measurement information.
In one possible embodiment, the validation result is determined by a plurality of validation parameters, wherein the plurality of validation parameters includes at least a relative error, a correlation coefficient, and a deterministic efficiency coefficient.
In one possible implementation mode, water consumption and water saving quantities corresponding to the multiple winter irrigation schemes are determined based on the rated water quantities corresponding to the multiple winter irrigation schemes and a water circulation model simulation, and a variation process curve of the water consumption and water saving quantities of the target irrigation area along with the rated water quantities of the winter irrigation schemes is constructed.
In a possible embodiment, the variation process curve is subjected to fitting processing to obtain a fitted target variation process curve.
In one possible implementation mode, calculating a partial derivative function of the target change process curve to form a change curve of the rated water amount and the partial derivative function value of a plurality of winter irrigation schemes; and taking the winter irrigation scheme corresponding to the extreme point in the change curve as a target winter irrigation scheme.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (12)
1. A method for determining a winter irrigation scheme of an irrigation area is characterized by comprising the following steps:
constructing a water circulation model aiming at the target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area;
simulating a water circulation process of the target irrigation areas corresponding to a plurality of winter irrigation schemes through the water circulation model;
determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process;
calculating a partial derivative function of the change process curve, and determining a target winter irrigation scheme based on the partial derivative function.
2. The method according to claim 1, wherein after the simulating the water circulation process of the target irrigation area corresponding to a plurality of winter irrigation schemes by the water circulation model, the method further comprises:
and verifying the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes, wherein the verification contents at least comprise water surface evaporation verification, target irrigation area drainage verification and underground water level verification.
3. The method of claim 2, wherein when the verification content is a water evaporation verification, the method further comprises:
acquiring evaporation information of evaporation pan water surface measurement in a preset time period of all weather stations in the target irrigation area;
and verifying the water surface evaporation of the water circulation process of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the evaporation dish water surface evaporation information.
4. The method according to claim 2, wherein when the verification content is a target irrigation district drainage verification, the method further comprises:
acquiring drainage information in a preset time period issued by an official in the target irrigation area;
and verifying the drainage condition of the target irrigation area corresponding to the plurality of winter irrigation schemes simulated by the water circulation model based on the drainage information.
5. The method of claim 2, wherein when the verification content is a groundwater level verification, the method further comprises:
acquiring underground water level actual measurement information of all underground water observation wells in the target irrigation area within a preset time period;
and verifying the underground water level of the target irrigation area corresponding to the water circulation model simulation multiple winter irrigation schemes based on the measured information.
6. The method according to any one of claims 3-5, further comprising:
a verification result is determined by a plurality of verification parameters, wherein the plurality of verification parameters includes at least a relative error, a correlation coefficient, and a deterministic efficiency coefficient.
7. The method of claim 6, wherein after verifying that the water circulation process of the target irrigation area corresponding to the water circulation model simulating a plurality of winter irrigation schemes passes, the determining a curve of the water saving amount of the water consumption of the target irrigation area according to the rated water amount of the winter irrigation scheme based on the water circulation process comprises:
and determining the water consumption and saving amount corresponding to the plurality of winter irrigation schemes based on the rated water amount corresponding to the plurality of winter irrigation schemes and the water circulation model simulation, and constructing a curve of the change process of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation schemes.
8. The method of claim 7, further comprising:
and fitting the change process curve to obtain a fitted target change process curve.
9. The method of claim 8, wherein the calculating a partial derivative function of the variation process curve and determining a target winter irrigation solution based on the partial derivative function comprises:
calculating a partial derivative function of the target change process curve to form a change curve of the rated water amount and the partial derivative function value of a plurality of winter irrigation schemes;
and taking the winter irrigation scheme corresponding to the extreme point in the change curve as a target winter irrigation scheme.
10. An irrigated area winter irrigation scheme determination device, its characterized in that includes:
the construction module is used for constructing a water circulation model aiming at the target irrigation area based on the WACM model and the water circulation characteristics of the target irrigation area;
the simulation module is used for simulating the water circulation process of the target irrigation areas corresponding to the winter irrigation schemes through the water circulation model;
the determining module is used for determining a change process curve of the water consumption and saving amount of the target irrigation area along with the rated water amount of the winter irrigation scheme based on the water circulation process;
the determining module is further configured to calculate a partial derivative function of the variation process curve, and determine a target winter irrigation scheme based on the partial derivative function.
11. A computer device, comprising: the processor is used for executing the irrigation area winter irrigation scheme determination program stored in the memory so as to realize the irrigation area winter irrigation scheme determination method of any one of claims 1-9.
12. A storage medium storing one or more programs, wherein the one or more programs are executable by one or more processors to implement the method for determining the winter irrigation scheme of an irrigation area according to any one of claims 1 to 9.
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