CN116108700B - Method and device for determining land abandoned time and electronic equipment - Google Patents
Method and device for determining land abandoned time and electronic equipment Download PDFInfo
- Publication number
- CN116108700B CN116108700B CN202310374427.7A CN202310374427A CN116108700B CN 116108700 B CN116108700 B CN 116108700B CN 202310374427 A CN202310374427 A CN 202310374427A CN 116108700 B CN116108700 B CN 116108700B
- Authority
- CN
- China
- Prior art keywords
- land
- abandoned
- profile distribution
- soil
- profile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000002689 soil Substances 0.000 claims abstract description 109
- 238000005315 distribution function Methods 0.000 claims abstract description 67
- 230000008859 change Effects 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 14
- 230000008021 deposition Effects 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 claims description 10
- 230000003628 erosive effect Effects 0.000 claims description 10
- 238000004062 sedimentation Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 238000004162 soil erosion Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000011835 investigation Methods 0.000 abstract description 7
- 238000011156 evaluation Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003971 tillage Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 241000170489 Upis Species 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 238000001730 gamma-ray spectroscopy Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/26—Government or public services
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Tourism & Hospitality (AREA)
- Educational Administration (AREA)
- Economics (AREA)
- Geometry (AREA)
- Development Economics (AREA)
- Evolutionary Computation (AREA)
- Computer Hardware Design (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Human Resources & Organizations (AREA)
- Marketing (AREA)
- Primary Health Care (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention belongs to the technical field of ecological environment monitoring, and relates to a method and a device for determining the time of a land and a deserted land and electronic equipmentAnd (5) preparing. The method comprises the following steps: establishing soil of abandoned land
A profile distribution variation model; obtaining soil of abandoned land
Profile distribution data
A background value; construction of soil of abandoned lands
A profile distribution function; establishing the abandoned land age
A relational expression of coefficients of the profile distribution function; according to the abandoned land age
And calculating a relation expression of coefficients of the profile distribution function to obtain the abandoned land age. The invention realizes a land abandoned time annual fixing method; the method overcomes the interference of the time sequence and quality of interview objects or image data in the traditional interview investigation and remote sensing technology, and improves the scientificity of the evaluation of the abandoned time; by means of
The method has the characteristics of being extremely sensitive to the change of soil environment, and realizes more accurate judgment of the time of the land being abandoned.
Description
Technical Field
The invention relates to the technical field of ecological environment monitoring, in particular to a method and a device for determining the time of a land and a back land and electronic equipment.
Background
The abandoned farmland is a state where cultivation is stopped for a long period of time due to various reasons, and is thus wasted. The cultivated land is a global problem, the cultivated land is frequently abandoned in mountain areas with fragile ecological environment, vegetation succession after the abandoned land obviously affects the change of the surrounding environment, the accurate space-time distribution information of the abandoned land is the basis of multidimensional expression of the cultivated land abandoned situation, and especially the duration of the abandoned land is a key factor affecting the ecological environment.
As the area of the land is continuously increased, recording means for the land is very lacking, and most of the land is recorded only by the traditional way of interview investigation. At present, with the development of remote sensing technology, remote sensing image data is used to obtain the distribution of the abandoned land, however, the technology mainly carries out the identification of the abandoned land on the vegetation characteristics of non-crop growing seasons or combines time sequence image data to estimate the abandoned age, so that the technology is easily interfered by factors such as repeated tillage after the abandoned land, vegetation succession stages or incomplete image data, and the like, and in addition, the applicability of the method is not strong and the precision is lower.
The traditional interview investigation needs to go deep into farmer interviews, and the cultivated land is often characterized by space-borne spots and blocks and intermittent time-borne, and has the following defects:
(1) The method is only suitable for areas where peasant households do not move away in the abandoned distribution area, and is not suitable for areas where peasant households have moved out to find interview objects conveniently;
(2) Different plaque abandoned time is not synchronous or different households of different abandoned land owners and the like, so that the regional investigation result is inaccurate;
(3) Susceptible to subjective factors of interview subjects, especially over time, it may be difficult to clearly recall the year of the back-up and not scientific.
The remote sensing investigation technology has higher requirement on time sequence images and is easily influenced by environmental factors, and the main defects are as follows:
(1) Multiple time sequence image comparison is needed to judge the time of the abandoned object, and the existing image can not cover the time of the abandoned object;
(2) The cultivated land abandoned land is widely distributed in mountain areas, and a plurality of regional remote sensing satellites are not in transit, so that available image data can not be obtained;
(3) The climate of the mountain area is changeable, rainfall, cloud and fog and the like have great influence on the image quality, and the identification of the abandoned land is directly interfered;
(4) The succession difference of vegetation after abandoned and the repeated tillage and the like can cause interference to remote sensing identification.
Disclosure of Invention
In order to solve the problem that the time of the land being abandoned is difficult to accurately estimate, the invention provides a soil profile
Method, device and electronic equipment for accurately judging the time of land and barren by depth distribution evolution law.
In a first aspect, the invention provides a method for determining the time of a land being left behind, comprising:
establishing soil of abandoned land
A profile distribution variation model;
obtaining soil of abandoned land
Profile distribution data and->
A background value;
based on the following
Profile distribution data, construction of the soil of the abandoned land +.>
A profile distribution function;
the soil of the abandoned land is based on
Profile distribution variation model and said->
Establishing a relation expression of the profile distribution function, and establishing the cultivation and the backsoil age and the +.>
A relational expression of coefficients of the profile distribution function;
based on the following
Profile distribution data and said->
A background value according to the abandoned land age and the +.>
And calculating a relation expression of coefficients of the profile distribution function to obtain the abandoned land age.
In a second aspect, the invention provides a device for determining the time of a cultivated land and a barren land, which comprises a model building unit, an acquisition unit, a distribution function building unit, a relational expression building unit and a calculation unit:
the model building unit is used for building the soil of the abandoned land
A profile distribution variation model;
the acquisition unit is used for acquiring the soil of the abandoned land
Profile distribution data and->
A background value;
the distribution function construction unit is used for based on the
Profile distribution data for construction of soil of abandoned land
A profile distribution function;
the relation expression establishing unit is used for establishing the relation expression based on the abandoned land soil
Profile distribution variation model and said->
Relational expression of profile distribution functionEstablishing a tilled land and a backlog age with the +.>
A relational expression of coefficients of the profile distribution function;
the computing unit is used for based on the
Profile distribution data and said->
A background value according to the abandoned land age and the +.>
And calculating a relation expression of coefficients of the profile distribution function to obtain the abandoned land age.
In a third aspect, the present invention provides an electronic device comprising:
a processor and a memory;
the memory is used for storing computer operation instructions;
the processor is used for executing the tilling and barren time annual determining method by calling the computer operation instruction.
The beneficial effects of the invention are as follows:
(1) Based on soil
The profile distribution characteristics and the change law with time reflect the duration of the land and the abandoned land, and realize the method of determining the time of the land and the abandoned land;
(2) The method is not influenced by the abandoned land distribution area and the environmental factors thereof, overcomes the defect that the traditional interview investigation and remote sensing technology is easy to be interfered by interview objects or image data time sequence and quality, and improves the scientificity of abandoned time evaluation;
(3) By means of
Is extremely sensitive to the change of soil environment, and can more accurately carry out the time of the abandoned farmlandAnd (5) judging.
On the basis of the technical scheme, the invention can be improved as follows.
Further, establishing the soil of the abandoned land
A profile distribution variation model comprising:
analysis of the land abandoned
A distribution profile in the soil profile;
establishing a mathematical expression of the profile distribution change process after the cultivated land is abandoned;
for the abandoned land where the soil erosion and deposition do not occur, the plough layer is provided at the beginning of the abandoned land
New sedimentation after continuous decay to the concentration after the year and the abandoned day +.>
The variation of the concentration with the time and depth of the abandoned land, to obtain said +.>
Profile distribution variation model.
Further, the soil of the abandoned land is obtained
The profile distribution data is obtained by collecting layered soil sample of the abandoned land and performing +.>
Concentration analysis test.
Further, the barren land soil
The profile data also includes plough layer depth data.
Further, based on the following
Profile distribution data, construction of the soil of the abandoned land +.>
A profile distribution function comprising:
based on the following
Profile distribution data according to the +.>
Obtaining said ++of the abandoned land soil by exponential fitting in the form of a mathematical expression of the profile distribution variation model>
Profile distribution function.
Further, establishing the abandoned farmland age and the said
The coefficients of the profile distribution function are expressed in relation to each other by adding the +.>
Profile distribution variation model and said->
Comparing the profile distribution functions, said +.>
Terms of profile distribution variation model and said +.>
The terms of the profile distribution function are equivalent to each other to obtain the cultivation land and the backlog age and the +.>
A relational expression of coefficients of the profile distribution function.
Further, the said
The background value is taken from natural grasslands or forests adjacent to the abandoned land without erosion and deposition, for which the ∈>
The background value is equal to +.>
Total area activity.
Drawings
FIG. 1 is a flow chart of a method for determining the time for a land to be used for cultivation according to the embodiment 1 of the present invention;
FIG. 2 shows soil after being abandoned
A simulation graph of the profile distribution over time;
FIG. 3 is a typical abandoned land soil
Profile map;
FIG. 4 (a) shows the soil of a barren land after 19 years of cultivation
Profile, (b) is the soil of the abandoned land 15 years after the abandoned land is cultivated>
Profile map;
FIG. 5 is a schematic diagram of a device for determining the time for a land to be cultivated and a method for cultivating the land according to embodiment 2 of the present invention;
fig. 6 is a schematic diagram of an electronic device according to embodiment 3 of the present invention.
Icon: 60-an electronic device; 610-a processor; 620-bus; 630-memory; 640-transceivers.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
As an embodiment, as shown in fig. 1, to solve the above technical problem, the present embodiment provides a method for determining the time for a land to be laid over for a certain period of time, including:
establishing soil of abandoned land
A profile distribution variation model;
obtaining soil of abandoned land
Profile distribution data and->
A background value;
based on
Profile distribution data, construction of the soil of the abandoned land +.>
A profile distribution function;
based on soil of abandoned lands
Profile distribution variation model and->
Establishing a relation expression of profile distribution functions, namely the cultivation and land backage and +.>
A relational expression of coefficients of the profile distribution function;
based on
Profile distribution data and->
Background value according to the abandoned age and the +.>
And calculating a relation expression of coefficients of the profile distribution function to obtain the abandoned land age.
Optionally, a abandoned land is establishedOf the ground soil
A profile distribution variation model comprising:
analysis of the land abandoned
A distribution profile in the soil profile;
establishing a mathematical expression of a profile distribution change process after the cultivated land is abandoned;
for the abandoned land where the soil erosion and deposition do not occur, the plough layer is provided at the beginning of the abandoned land
New sedimentation after continuous decay to the concentration after the year and the abandoned day +.>
The variation of the concentration with the time and depth of the abandoned land to obtain the +.>
Profile distribution variation model.
In the practical application process, based on
Is characterized by the continuous sedimentation of +.>
The source I is the ++L which is added to plough layer at the beginning of the abandoned land>
The second source is that the atmosphere is newly settled on the surface soil after abandoned wasteland
Thus, after the land is abandoned, the user is left with +.>
The distribution change process in the soil profile is the source one +.>
Decay process and Source two->
Is used for the infiltration process.
Is provided with
To give a plough layer +.>
In the first place of food>
Annual soil depth->
Concentration at (unit: cm) (unit:/->
）；/>
Soil depth at the beginning of the abandoned land>
(Unit: cm)>
Concentration (unit: mBq cm) -3 ）；/>
Is->
Decay constant->
；/>
Is +.>
Is defined in terms of background value (units:>
）；/>
the first part of the food>
Plowing depth after year (unit: cm), for the abandoned land where no soil erosion and deposition occurs, the source is +.>
Can be expressed by the following decay formula:
is provided with
The first part of the food>
Annual soil depth->
(unit: cm) New Settlement->
Concentration (unit:
)；/>
the first part of the food>
New sedimentation ∈>
Area activity of (2)(units:
）；/>
is->
Diffusion coefficient (unit:)>
) Source two->
The infiltration process of (2) can be expressed by the following one-dimensional diffusion model:
combining the decay formula and the diffusion model of the infiltration process, and placing the soil after the cultivation land is abandoned
The comprehensive mathematical expression of the profile distribution change process is as follows:
the soil of the abandoned barren land
Profile variation model, wherein the first right term is +.f assigned to plough layer at the beginning of a abandoned land>
After continuous decay to a concentration after the year, the second item is newly settled +.>
Concentration varies with time of abandoned land and depth of soil. Fitting the soil profile of the cultivated land after being abandoned according to the distribution change model
The concentration changes with soil depth and abandoned time are shown in figure 2.
Alternatively, the soil of the abandoned land is obtained
The profile distribution data is obtained by collecting layered soil sample of the abandoned land and performing +.>
Concentration analysis test.
In the practical application process, the soil sample collection depth is generally 30cm, the layering thickness is generally 2-3cm,
concentration was determined using gamma-spectroscopy +.>
Specific activity (unit:>
) Further, the soil layer unit weight was converted into a concentration (unit: />
). Soil of typical abandoned land>
The profile distribution is shown in figure 3.
Specifically, soil sample collection and concentration analysis test, select flat, no erosion and deposition of the front and back of the abandoned land, each land is set up 5 sampling points according to the "S" shape, adopt the soil drilling method to collect 30cm deep soil layer soil samples according to the thickness of 3cm, 10 layered samples of each sampling point. And (3) placing the sample in a dry, ventilated and pollution-free room for natural air drying, and picking up plant residues (such as roots, stems, leaves and the like) and gravel when the soil sample is semi-dry. The air-dried soil sample is ground and then passes through a nylon sieve with a 2 mm aperture, and a proper amount of sample is put in a round high-density polyethylene plastic box with the diameter of 75 mm and the height of 70 mm, and the soil sample is placed in a sealed manner for 20 days.
Layered samples of abandoned lands are used for obtaining abandoned land soil
Profile distribution data, and simultaneously, the same sampling method is adopted to collect natural woodland samples for obtaining +.>
Background value.
Optionally, the soil of the barren land
The profile data further comprises plough layer depth data +.>
. Drawing the soil of the abandoned land for 19 years and 15 years according to the test result of the soil sample of the abandoned land>
Profile as shown in fig. 4. In the soil section of the barren land>
Is distributed in an exponentially decreasing manner, and the plough layer with the depth of less than 9cm is basically uniformly distributed; at the same time according to->
In FIG. 4, the depth of plough layer soil after 19 years of the cultivated land is left as shown in (a)>
27 cm, and (b) plough layer soil depth after 15 years of the ploughed land being abandoned +.>
24 cm.
The subjects of the abandoned lands selected in the embodiment are the abandoned lands of 19 years and 15 years without erosion, so the total of them is taken
The area activity is used as a background value, and the background value is 1082 +.>
For a abandoned land 15 years old, the background value is 1019 +.>
。
Optionally based on
Profile distribution data, construction of the soil of the abandoned land +.>
A profile distribution function comprising:
based on
Profile distribution data according to the +.f of the soil of the abandoned land>
Mathematical expression form of profile distribution variation model, obtaining +.f. of the soil of the abandoned land by exponential fitting>
Profile distribution function.
In the practical application process, set up
Is constant (I)>
、/>
As a function coefficient, then:
according to the obtained stackBarren land soil for 19 years and 15 years
Profile distribution measured data, according to
Form fitting to obtain->
The profile distribution function is as follows:
soil of abandoned land constructed as above
Profile distribution function, soil of abandoned land for 19 years and 15 years +.>
Constant term of profile distribution fitting function>
21.64 and 24.74 respectively.
Optionally, establishing the age and the period of the land
The coefficients of the profile distribution function are expressed in relation to each other by adding +.>
Profile distribution variation model and->
Profile distribution function is compared +.>
Profile distribution change modelItem and->
The terms of the profile distribution function are equivalent to each other to obtain the backlog age and +.>
A relational expression of coefficients of the profile distribution function.
In the practical application process, the soil is used as a abandoned land
Profile distribution model and->
The profile distribution functions are compared by equalizing the corresponding terms, i.e. +.>
The first term on the right of the profile distribution model is equivalent to the measured profile distribution function constant +.>
，/>
The second term on the right of the profile distribution model is correspondingly equivalent to +.>
The second term to the right of the profile distribution function. Due to->
The second item on the right of the profile distribution model has more parameters and is not easy to obtain, and the cultivated land abandoned age and the +.>
Relationship of coefficients of profile distribution function:
optionally, an optionalSoil of abandoned land
Profile distribution data except layered soil samples +.>
In addition to the concentration, plough layer depth +.>
。/>
The background value is taken from natural grasslands or forests adjacent to the abandoned land without erosion and deposition, and for the abandoned land without erosion and deposition, the value is equal to the soil +.>
Total area activity. Optionally, a->
The background value is taken from natural grasslands or woodlands adjacent to the abandoned land that are free of erosion and deposition, for abandoned lands that are free of erosion and deposition,
the background value is equal to +.>
Total area activity.
Soil based on abandoned land
Profile distribution variation model and->
The mathematical expression form of the profile distribution function establishes the abandoned land age and the actual measurement +.>
The relation of the coefficients of the profile distribution function further constructs a calculation formula of the abandoned land age, namely:
based on the obtained abandoned land soil
Constant of profile distribution fitting function>
、/>
Background value
Plough layer depth of ploughed land by being abandoned to sampling>
According to the abandoned age of cultivated land and the actual measurement +.>
The relation of the coefficients of the profile distribution function is used to obtain the calculated back-up land years of 20.1 years and 17.6 years respectively, which are exactly known back-up time of 19 years and 15 years.
From the above, it is apparent that the period of the abandoned land obtained by the method for determining the period of the cultivated land provided by the present invention is in agreement with the actual period, and the accuracy of determining the period of the abandoned land for 15 years or more is less than 3 years, and the accuracy of determining the period is higher as the period of the abandoned land increases. The acquisition of the abandoned land age can provide data support for the subsequent analysis of the ecological environment influence of abandoned land on water and soil loss and the like.
The invention has the following advantages:
(1) Based on soil
The profile distribution characteristics and the change law with time reflect the duration of the land and the abandoned land, and realize the method of determining the time of the land and the abandoned land;
(2) The method is not influenced by the abandoned land distribution area and the environmental factors thereof, overcomes the defect that the traditional interview investigation and remote sensing technology is easy to be interfered by interview objects or image data time sequence and quality, and improves the scientificity of abandoned time evaluation;
(3) By means of
The method has the characteristic of being extremely sensitive to the change of soil environment, and can be used for more accurately judging the time of the land being abandoned.
Example 2
Based on the same principle as the method shown in the embodiment 1 of the present invention, as shown in fig. 5, the embodiment of the present invention further provides a device for determining the time of the land being cultivated and the device comprises a model building unit, an obtaining unit, a distribution function building unit, a relational expression building unit and a calculating unit:
a model building unit for building soil of abandoned land
A profile distribution variation model;
an acquisition unit for acquiring soil of abandoned land
Profile distribution data and->
A background value;
a distribution function construction unit for
Profile distribution data, construction of the soil of the abandoned land +.>
A profile distribution function;
a relational expression establishing unit for establishing a relational expression based on the soil of the abandoned land
Profile distribution change model
Establishing a relation expression of profile distribution functions, namely the cultivation and land backage and +.>
A relational expression of coefficients of the profile distribution function;
a computing unit for based on
Profile distribution data and->
Background value according to the abandoned age and the abandoned age of the cultivated land
And calculating a relation expression of coefficients of the profile distribution function to obtain the abandoned land age.
Optionally, establishing soil of the abandoned land
A profile distribution variation model comprising:
analysis of the land abandoned
A distribution profile in the soil profile;
establishing a mathematical expression of a profile distribution change process after the cultivated land is abandoned;
for the abandoned land where the soil erosion and deposition do not occur, the plough layer is provided at the beginning of the abandoned land
New sedimentation after continuous decay to the concentration after the year and the abandoned day +.>
The variation of the concentration with the time and depth of the abandoned land to obtain the +.>
Profile distribution variation model.
Alternatively, the soil of the abandoned land is obtained
The profile distribution data is obtained by collecting layered soil sample of the abandoned land and performing +.>
Concentration analysis test.
Optionally based on
Profile distribution data, construction of the soil of the abandoned land +.>
A profile distribution function comprising:
based on
Profile distribution data according to the +.f of the soil of the abandoned land>
Mathematical expression form of profile distribution variation model, obtaining +.f. of the soil of the abandoned land by exponential fitting>
Profile distribution function.
Optionally, establishing the age and the period of the land
The coefficients of the profile distribution function are expressed in relation to each other by adding +.>
Profile distribution variation model and->
Profile distribution function is compared +.>
Terms of profile distribution variation model +.>
The terms of the profile distribution function are equivalent to each other to obtain the backlog age and +.>
A relational expression of coefficients of the profile distribution function.
Alternatively to this, the method may comprise,
the background value is taken from natural grasslands or woodlands adjacent to the abandoned land without erosion and deposition, for which the abandoned land without erosion and deposition is ∈>
The background value is equal to +.>
Total area activity.
Example 3
Based on the same principle as the method shown in the embodiment of the present invention, there is also provided an electronic device in the embodiment of the present invention, as shown in fig. 6, which may include, but is not limited to: a processor and a memory; a memory for storing a computer program; and the processor is used for executing the method for determining the time of the land and the barren by calling the computer program.
In an alternative embodiment, an electronic device is provided, the electronic device 60 shown in FIG. 6 comprising: a processor 610 and a memory 630. Processor 610 is coupled to memory 630, such as via bus 620.
Optionally, the electronic device 60 may further comprise a transceiver 640, the transceiver 640 may be used for data interaction between the electronic device and other electronic devices, such as transmission of data and/or reception of data, etc. It should be noted that, in practical applications, the transceiver 640 is not limited to one, and the structure of the electronic device 60 is not limited to the embodiment of the present invention.
The processor 610 may be a CPU central processor, a general purpose processor, a DSP data signal processor, an ASIC specific integrated circuit, an FPGA field programmable gate array or other programmable logic device, a hardware component, or any combination thereof. The processor 610 may also be a combination that performs computing functions, such as including one or more microprocessors, a combination of a DSP and a microprocessor, or the like.
The memory 630 may be, but is not limited to, ROM read only memory or other type of static storage device that can store static information and instructions, RAM random access memory or other type of dynamic storage device that can store information and instructions, EEPROM electrically erasable programmable read only memory, CD-ROM read only or other optical disk storage, optical disk storage (including optical disks, laser disks, compact disks, digital versatile disks, etc.), magnetic disk storage media, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
The memory 630 is used for storing application program codes (computer programs) for executing the inventive arrangements and is controlled to be executed by the processor 610. The processor 610 is configured to execute application code stored in the memory 630 to implement what is shown in the foregoing method embodiments.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The method for determining the time of the land being abandoned is characterized by comprising the following steps:
according to the plough layer when the abandoned land starts
New sedimentation of the atmosphere after continuous decay to the concentration after the current year and the abandoned day +.>
The concentration varies with the time and depth of the land, and the soil of the land is established 210 Pb ex A profile distribution variation model;
obtaining soil of abandoned land 210 Pb ex Profile distribution data 210 Pb ex A background value;
based on the following 210 Pb ex Profile distribution data for construction of soil of abandoned land 210 Pb ex A profile distribution function;
the soil of the abandoned land is based on 210 Pb ex Profile distribution variation model and the method 210 Pb ex Establishing the relation expression of the profile distribution function, and establishing the abandoned farmland age and the relation expression 210 Pb ex A relational expression of coefficients of a profile distribution function, comprising: by combining the above
Profile distribution variation model and said->
Comparing the profile distribution functions, said +.>
Terms of profile distribution variation model and said +.>
The terms of the profile distribution function are equivalent to each other to obtain the cultivation land and the backlog age and the +.>
A relational expression of coefficients of the profile distribution function;
based on the following 210 Pb ex Profile distribution data and the method 210 Pb ex Background value according to the abandoned land age and the cultivated land 210 Pb ex And calculating a relation expression of coefficients of the profile distribution function to obtain the abandoned land age.
2. A method of determining the time to land backdrop as defined in claim 1, wherein the soil of the backdrop is established 210 Pb ex A profile distribution variation model comprising:
analysis of the land abandoned 210 Pb ex A distribution profile in the soil profile;
establishing a mathematical expression of the profile distribution change process after the cultivated land is abandoned;
for the abandoned land where the soil erosion and deposition do not occur, the plough layer is provided at the beginning of the abandoned land 210 Pb ex New sedimentation after continuous decay to the concentration after the current year and the abandoned 210 Pb ex The variation of the concentration with the time and depth of the abandoned land to obtain the soil of the abandoned land 210 Pb ex Profile distribution variation model.
3. The method of claim 1, wherein the soil of the land is obtained 210 Pb ex The mode of profile distribution data comprises collecting soil layering samples of abandoned lands and performing 210 Pb ex Concentration analysis test.
4. A method of determining the time to land and be used for the cultivation of a barren land as claimed in claim 3, wherein said barren land soil 210 Pb ex The profile data also includes plough layer depth data.
5. The method of determining the time of day of a land being abandoned as claimed in claim 1, wherein said method is based on said method 210 Pb ex Profile distribution data for construction of soil of abandoned land 210 Pb ex A profile distribution function comprising:
based on the following 210 Pb ex Profile distribution data according to the abandoned land soil 210 Pb ex Obtaining said soil of the abandoned land by exponential fitting in the form of a mathematical expression of a profile distribution variation model 210 Pb ex Profile distribution function.
6. The method for determining the time of a land being left on the land as recited in claim 1, wherein said 210 Pb ex The background value is taken from natural grasslands or woodlands adjacent to the abandoned land where there is no erosion and deposition, for which 210 Pb ex The background value is equal to that of the soil of the abandoned land 210 Pb ex Total area activity.
7. The cultivation land abandoned time annual device is characterized by comprising a model building unit, an acquisition unit, a distribution function building unit, a relational expression building unit and a calculation unit:
the model building unit is used for providing plough layers according to the initial time of the abandoned lands
New sedimentation of the atmosphere after continuous decay to the concentration after the current year and the abandoned day +.>
The concentration varies with the time and depth of the land, and the soil of the land is established 210 Pb ex A profile distribution variation model;
the acquisition unit is used for acquiring the soil of the abandoned land 210 Pb ex Profile distribution data 210 Pb ex A background value;
the distribution function construction unit is used for based on the 210 Pb ex Profile distribution data for construction of soil of abandoned land 210 Pb ex A profile distribution function;
the relation expression establishing unit is used for establishing the relation expression based on the abandoned land soil 210 Pb ex Profile distribution variation model and the method 210 Pb ex Establishing the relation expression of the profile distribution function, and establishing the abandoned farmland age and the relation expression 210 Pb ex A relational expression of coefficients of a profile distribution function, comprising: by combining the above
Profile distribution variation model and said->
Comparing the profile distribution functions, said +.>
Terms of profile distribution variation model and said +.>
The terms of the profile distribution function are equivalent to each other to obtain the cultivation land and the backlog age and the +.>
A relational expression of coefficients of the profile distribution function;
the computing unit is used for based on the 210 Pb ex Profile distribution data and the method 210 Pb ex Background value according to the abandoned land age and the cultivated land 210 Pb ex And calculating a relation expression of coefficients of the profile distribution function to obtain the abandoned land age.
8. An electronic device, comprising:
a processor and a memory;
the memory is used for storing computer operation instructions;
the processor for executing the method for determining the time to land and to land by calling the computer operation instructions according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310374427.7A CN116108700B (en) | 2023-04-10 | 2023-04-10 | Method and device for determining land abandoned time and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310374427.7A CN116108700B (en) | 2023-04-10 | 2023-04-10 | Method and device for determining land abandoned time and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116108700A CN116108700A (en) | 2023-05-12 |
| CN116108700B true CN116108700B (en) | 2023-07-11 |
Family
ID=86258200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310374427.7A Active CN116108700B (en) | 2023-04-10 | 2023-04-10 | Method and device for determining land abandoned time and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116108700B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914678A (en) * | 2013-01-05 | 2014-07-09 | 中国科学院遥感与数字地球研究所 | Abandoned land remote sensing recognition method based on texture and vegetation indexes |
| CN113642399A (en) * | 2021-07-12 | 2021-11-12 | 广东省国土资源测绘院 | Method for identifying abandoned land in paddy field based on SAR data |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109685081B (en) * | 2018-12-27 | 2020-07-24 | 中国土地勘测规划院 | Combined change detection method for remote sensing extraction of abandoned land |
| CN111931126A (en) * | 2020-06-18 | 2020-11-13 | 内蒙古生态环境大数据有限公司 | Space decision system for ecological treatment of abandoned land |
| CN115082803B (en) * | 2022-08-19 | 2023-02-03 | 广州大学 | Cultivated land abandoned land monitoring method and device based on vegetation season change and storage medium |
| CN115661633A (en) * | 2022-09-16 | 2023-01-31 | 广州市华南自然资源科学技术研究院 | Remote sensing extraction method for abandoned land information in mountainous and hilly areas |
-
2023
- 2023-04-10 CN CN202310374427.7A patent/CN116108700B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914678A (en) * | 2013-01-05 | 2014-07-09 | 中国科学院遥感与数字地球研究所 | Abandoned land remote sensing recognition method based on texture and vegetation indexes |
| CN113642399A (en) * | 2021-07-12 | 2021-11-12 | 广东省国土资源测绘院 | Method for identifying abandoned land in paddy field based on SAR data |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116108700A (en) | 2023-05-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kitchen et al. | Soil electrical conductivity as a crop productivity measure for claypan soils | |
| Heathman et al. | Assimilation of surface soil moisture to estimate profile soil water content | |
| Boardman et al. | The measurement, estimation and monitoring of soil erosion by runoff at the field scale: Challenges and possibilities with particular reference to Britain | |
| Bufon et al. | Soil water content on drip irrigated cotton: comparison of measured and simulated values obtained with the Hydrus 2-D model | |
| Strati et al. | Modelling soil water content in a tomato field: proximal gamma ray spectroscopy and soil–crop system models | |
| Shafiei et al. | Uncertainty assessment of the agro-hydrological SWAP model application at field scale: A case study in a dry region | |
| CN113176393B (en) | HASM model-based three-dimensional estimation method and system for soil organic carbon reserves | |
| Poddar et al. | Evaluation of two irrigation scheduling methodologies for potato (Solanum tuberosum L.) in north-western mid-hills of India | |
| Schmidt et al. | Within‐field variability in optimum nitrogen rate for corn linked to soil moisture availability | |
| CN106093048B (en) | It is a kind of to determine the method in year for tree ring and realize the device of this method | |
| Cheng et al. | Improvement and comparison of the rainfall–runoff methods in SWAT at the monsoonal watershed of Baocun, Eastern China | |
| Uzun et al. | Spatial distribution of wind-driven sediment transport rate in a fallow plot in Central Anatolia, Turkey | |
| Stone et al. | Equations for drainage component of the field water balance | |
| Cameira et al. | Simulating the fate of water in field soil–crop environment | |
| Guzmán et al. | Assessment of spatial variability in water erosion rates in an olive orchard at plot scale using a magnetic iron oxide tracer | |
| Ochoa et al. | Deep percolation and its effects on shallow groundwater level rise following flood irrigation | |
| Kibirige et al. | Off-site calibration approach of EnviroScan capacitance probe to assist operational field applications | |
| Turek et al. | Criteria for the estimation of field capacity and their implications for the bucket type model | |
| Brogi et al. | Monitoring irrigation in small orchards with cosmic-ray neutron sensors | |
| Strohbach | Making more of vegetation classification results: A livestock farming suitability index as tool for land-use planning in Namibia. | |
| Islam et al. | Performance evaluation of methods for the estimation of soil hydraulic parameters and their suitability in a hydrologic model | |
| Okkan et al. | Questioning of empirically derived and locally calibrated potential evapotranspiration equations for a lumped water balance model | |
| Nishat et al. | Development of a simplified continuous simulation model for investigating long-term soil moisture fluctuations | |
| Olejnik et al. | Evaluation of a water balance model using data for bare soil and crop surfaces in Middle Europe | |
| CN116108700B (en) | Method and device for determining land abandoned time and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |