CN113837646A - Plain river network river water forecasting and evaluating system - Google Patents
Plain river network river water forecasting and evaluating system Download PDFInfo
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Abstract
The invention discloses a river water forecasting and evaluating system for a plain river network, which is established by four steps, wherein the target layer, the criterion layer and the index layer in a framework structure of a safety comprehensive evaluation index system all comprise a water quantity meeting condition, a water quality meeting condition and a water ecology meeting condition, the safety of the plain river network is ensured by matching a collecting device and the framework structure of the safety comprehensive evaluation index system in the steps, and the management and control of the water ecology of the plain river network are improved by matching a collecting device of the water ecology and a collecting device of the water quality with a judging mode of the water quality meeting condition and the water ecology meeting condition.
Description
Technical Field
The invention belongs to the technical field of river water assessment, and particularly relates to a river water forecasting and assessing system for a plain river network.
Background
At present, flood control forecasting becomes an independent application subject, and a plurality of practical flood control forecasting methods and models are developed at home and abroad in the fight with flood, and plain river network areas are developed in developed cities and areas with large population, dense lakes, low terrain and easy flood disasters. Besides the functions of flood control, waterlogging drainage and water transportation, the water system in the plain river network area also has various functions of water supply, green space provision, environment protection, natural protection, travel entertainment, traffic transportation, cultural education and the like, and the emerging functions of the water system provide higher requirements for the water system planning in the current stage of the plain river network area.
The river network structure is an important theoretical basis for analyzing the form and function of a water system. The good river network water system is one of the foundations of resource-saving, environment-friendly and social harmonious development of urban construction, and is the main way for improving urban environment and urban image. The plain river network water system is a living urban ecology and culture soul, the scarce resources of the river network area ecological system and the landscape system are green life lines of the river network area ecological system, the scarce resources are important factors of ecological balance, and in order to meet the monitoring requirement of the plain river network, the invention provides the plain river network river water forecasting and evaluating system.
Disclosure of Invention
In view of the above problems, the main object of the present invention is to design a river water forecasting and evaluating system for a plain river network, which ensures the safety of the plain river network and improves the water flow ecology control of the plain river network by matching a collecting device with a frame structure of a safety comprehensive evaluation index system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a plain river network river water forecast evaluation system comprises the following steps:
the method comprises the following steps: selecting a node on the plain river network to place a collecting device;
step two: constructing a safety comprehensive assessment index system framework structure of the plain river network water flow;
step three: sending the data obtained by sampling in the step one to a frame structure of a safety comprehensive assessment index system of the water flow in the step two for comparison;
step four: and summarizing the comparison results in the third step, transmitting the summarized results to a display terminal, and displaying the summarized results through the display terminal.
As a further description of the invention, the distance between the nodes in the first step is 5 +/-1 m, and the collection device of each node comprises a water flow collection device, a water ecology collection device and a water quality collection device.
As a further description of the invention, the security comprehensive evaluation index system framework in step two comprises a target layer, a criterion layer and an index layer.
As further description of the invention, the settings of the target layer, the criterion layer and the index layer of the safety comprehensive assessment index system framework comprise a water quantity meeting condition, a water quality reaching condition and a water ecology reaching condition.
As further description of the invention, the water quantity satisfaction condition, the water quality standard reaching condition and the water ecology standard reaching condition of a single index of a target layer, a criterion layer and an index layer are respectively determined, the determination method is as follows, the evaluation score of the single index is Fi：
In the formula:
f for each individual index score valueiAverage value; fmaxFor each individual index a score F is giveniN is the number of indices, according to FiBuilding up the standard after value division, and evaluating the standard effect;
according to the evaluation scores of the comprehensive indexes, the water functional area standard construction worker with the score of less than 0.80 is used as the I grade (good), the water functional area standard construction worker with the score of 0.80 to less than 2.50 is used as the II grade (good), the water functional area standard construction worker with the score of 2.50 to less than 4.25 is used as the I I grade (good), the water functional area standard construction worker with the score of 4.25 to less than 7.20 is used as the I V grade (poor), and the water functional area standard construction worker with the score of less than 7.20 is used as the V grade (poor).
As a further description of the present invention, the water quantity satisfaction includes the degree of satisfaction of the water quantity, the annual water supply guarantee rate, and the flow-off cutoff rate; the water quality standard-reaching conditions comprise a water quality standard-reaching rate and a water flow discharge standard-reaching rate; the water ecology reaching the standard comprises pollution level, pollution type and vegetation coverage.
As a further description of the present invention, the display terminal in step four includes a mobile phone, a computer, and a tablet.
Compared with the prior art, the invention has the technical effects that:
the invention provides a river water forecasting and evaluating system for a plain river network, which ensures the safety of the plain river network by matching a collecting device with a safety comprehensive evaluation index system frame structure, and improves the management and control of the water ecology of the plain river network by matching a water ecology collecting device and a water quality collecting device with the judgment mode of the water quality standard-reaching condition and the water ecology standard-reaching condition.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic diagram showing evaluation of a single index according to the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
a system for forecasting and evaluating river water in a plain river network, as shown in fig. 1-2, comprising the following steps:
the method comprises the following steps: selecting a node on the plain river network to place a collecting device;
step two: constructing a safety comprehensive assessment index system framework structure of the plain river network water flow;
step three: sending the data obtained by sampling in the step one to a frame structure of a safety comprehensive assessment index system of the water flow in the step two for comparison;
step four: and summarizing the comparison results in the third step, transmitting the summarized results to a display terminal, and displaying the summarized results through the display terminal.
The construction mode of the river water forecasting and evaluating system of the plain river network is that the system is complete and simple, and the forecasting effect of the river water of the plain river network is met from the selection of the nodes to the placement of the acquisition device to the comparison of the acquired data and the safety comprehensive assessment index system frame and further to the final display.
The node setting distance in the step one is 5 +/-1 m, and the collecting device of each node comprises a water flow collecting device, a water ecology collecting device and a water quality collecting device.
The above-mentioned collection type and the mode of setting that discloses collection device includes, the setting of distance includes 5 1m but not only is limited to this within range's distance, in the actual operation process, can be according to the demand of data collection, adjusts and manages and controls the distance.
Setting a target layer, a standard layer and an index layer of a framework of the safe comprehensive evaluation index system in the second step, wherein the setting of the target layer, the standard layer and the index layer of the framework of the safe comprehensive evaluation index system comprises a water quantity satisfying condition, a water quality reaching condition and a water ecological reaching condition, and respectively determining the water quantity satisfying condition, the water quality reaching condition and the water ecological reaching condition of a single index of the target layer, the standard layer and the index layer, wherein the single index evaluation score is Fi：
In the formula:
f for each individual index score valueiAverage value; fmaxFor each individual index a score F is giveniN is the number of indices, according to FiBuilding up the standard after value division, and evaluating the standard effect;
according to the evaluation scores of the comprehensive indexes, the water functional area standard construction worker with the score of less than 0.80 is used as the I grade (good), the water functional area standard construction worker with the score of 0.80 to less than 2.50 is used as the II grade (good), the water functional area standard construction worker with the score of 2.50 to less than 4.25 is used as the I I grade (good), the water functional area standard construction worker with the score of 4.25 to less than 7.20 is used as the I V grade (poor), and the water functional area standard construction worker with the score of less than 7.20 is used as the V grade (poor).
Through the formula and the evaluation score condition disclosed above, the specific indexes of the river water can be known, and measures can be conveniently taken for prevention and treatment.
The water quantity satisfying conditions comprise the satisfying degree of the water quantity, the annual water supply guarantee rate and the flow-off and flow-off rate; the water quality standard-reaching conditions comprise a water quality standard-reaching rate and a water flow discharge standard-reaching rate; the water ecology reaching the standard comprises pollution level, pollution type and vegetation coverage.
The evaluation values of the indexes are used for carrying out corresponding prevention and control, and the evaluation system is clear in classification and clear in control.
The display terminal in step four includes a mobile phone, a computer, a tablet, and the like, including but not limited to the terminal device, and also includes an electronic device for displaying, such as a display screen.
The invention provides a river water forecasting and evaluating system for a plain river network, which ensures the safety of the plain river network by matching a collecting device with a safety comprehensive evaluation index system frame structure, and improves the management and control of the water ecology of the plain river network by matching a water ecology collecting device and a water quality collecting device with the judgment mode of the water quality standard-reaching condition and the water ecology standard-reaching condition.
The above embodiments are only for illustrating the technical solutions of the present invention and are not limited, and other modifications or equivalent substitutions made by the technical solutions of the present invention by the ordinary skilled person in the art are included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A plain river network river water forecast evaluation system is characterized in that: the method comprises the following steps:
the method comprises the following steps: selecting a node on the plain river network to place a collecting device;
step two: constructing a safety comprehensive assessment index system framework structure of the plain river network water flow;
step three: sending the data obtained by sampling in the step one to a frame structure of a safety comprehensive assessment index system of the water flow in the step two for comparison;
step four: and summarizing the comparison results in the third step, transmitting the summarized results to a display terminal, and displaying the summarized results through the display terminal.
2. The system according to claim 1, wherein the flow forecast of the plain river network comprises: the node setting distance in the step one is 5 +/-1 m, and the collecting device of each node comprises a water flow collecting device, a water ecology collecting device and a water quality collecting device.
3. The system according to claim 1, wherein the flow forecast of the plain river network comprises: and step two, comprehensively evaluating the security of the target layer, the standard layer and the index layer of the index system framework.
4. The system according to claim 3, wherein the flow forecast of the plain river network comprises: the setting of the target layer, the criterion layer and the index layer of the safety comprehensive evaluation index system framework comprises a water quantity meeting condition, a water quality standard meeting condition and a water ecology standard meeting condition.
5. The system according to claim 4, wherein the flow forecast of the plain river network comprises: the method is characterized in that the water quantity satisfaction condition, the water quality standard-reaching condition and the water ecology standard-reaching condition of single indexes of a target layer, a criterion layer and an index layer are respectively determined, the determination method is as follows, and the evaluation score of the single index is Fi：
In the formula:
f for each individual index score valueiAverage value; fmaxFor each individual index a score F is giveniN is the number of indices, according to FiBuilding up the standard after value division, and evaluating the standard effect;
according to the evaluation scores of the comprehensive indexes, the water functional area standard construction worker with the score of less than 0.80 is used as the I grade (good), the water functional area standard construction worker with the score of 0.80 to less than 2.50 is used as the II grade (good), the water functional area standard construction worker with the score of 2.50 to less than 4.25 is used as the I I grade (good), the water functional area standard construction worker with the score of 4.25 to less than 7.20 is used as the I V grade (poor), and the water functional area standard construction worker with the score of less than 7.20 is used as the V grade (poor).
6. The system according to claim 4, wherein the flow forecast of the plain river network comprises: the water quantity satisfying conditions comprise the satisfying degree of the water quantity, the annual water supply guarantee rate and the flow-off and flow-off rate; the water quality standard-reaching conditions comprise a water quality standard-reaching rate and a water flow discharge standard-reaching rate; the water ecology reaching the standard comprises pollution level, pollution type and vegetation coverage.
7. The system according to claim 1, wherein the flow forecast of the plain river network comprises: the display terminal in the fourth step comprises a mobile phone, a computer and a tablet.
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| CN202111176773.1A CN113837646A (en) | 2021-10-09 | 2021-10-09 | Plain river network river water forecasting and evaluating system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104915805A (en) * | 2015-07-07 | 2015-09-16 | 郑州大学 | Evaluation method for river ecological restoration effect |
| CN106250695A (en) * | 2016-08-03 | 2016-12-21 | 环境保护部南京环境科学研究所 | A kind of plain river network river water environmental security evaluation system |
| CN109118101A (en) * | 2018-08-24 | 2019-01-01 | 华北水利水电大学 | A kind of River Health Assessment method suitable for Shelter in South China Cities river |
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- 2021-10-09 CN CN202111176773.1A patent/CN113837646A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104915805A (en) * | 2015-07-07 | 2015-09-16 | 郑州大学 | Evaluation method for river ecological restoration effect |
| CN106250695A (en) * | 2016-08-03 | 2016-12-21 | 环境保护部南京环境科学研究所 | A kind of plain river network river water environmental security evaluation system |
| CN109118101A (en) * | 2018-08-24 | 2019-01-01 | 华北水利水电大学 | A kind of River Health Assessment method suitable for Shelter in South China Cities river |
Non-Patent Citations (2)
| Title |
|---|
| 李昊洋等: "平原河网地区河流健康评估研究——以太浦河为例", 水利水电快报, vol. 39, no. 11, pages 24 - 29 * |
| 褚克坚等: "平原河网地区河流水生态评价指标体系构建及应用", 水力发电学报, vol. 33, no. 5, pages 189 - 194 * |
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