CN111274663A - Agricultural non-point source pollution prevention and control technology based on bank side band - Google Patents
Agricultural non-point source pollution prevention and control technology based on bank side band Download PDFInfo
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- CN111274663A CN111274663A CN201811473715.3A CN201811473715A CN111274663A CN 111274663 A CN111274663 A CN 111274663A CN 201811473715 A CN201811473715 A CN 201811473715A CN 111274663 A CN111274663 A CN 111274663A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 230000002265 prevention Effects 0.000 title claims abstract description 7
- 238000004458 analytical method Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 4
- 231100000719 pollutant Toxicity 0.000 claims abstract description 4
- 238000013508 migration Methods 0.000 claims abstract description 3
- 230000005012 migration Effects 0.000 claims abstract description 3
- 238000004088 simulation Methods 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention discloses an agricultural non-point source pollution control technology based on a bank side belt, belongs to the field of agricultural non-point source pollution control of the bank side belt, and aims to solve the problem of serious agricultural non-point source pollution in the north river province, so that the driving protection navigation can be continuously developed for the resource, the economic environment and the sustainable development of the north river province. The technology is based on SWAT Model theory, and based on remote sensing data and GIS technology, a Non-Point Source Pollution Estimation Model (NPSPEM) of the bank side is established to analyze the agricultural Non-Point Source Pollution of the bank side; on the basis of an NPSPEM model, comparing and analyzing the migration characteristics of pollutants under the conditions of shoreside belts and shoreside belt-free belts, calculating the non-point source pollution load of a basin by using the NPSPEM model, and analyzing the control effect of the shoreside belts on the non-point source pollution; and (3) simulating the pollution control effect of different shoreside zones designed and constructed on the watershed by using a scene analysis method through an NPSPEM model, thereby providing an optimal prevention and control scheme.
Description
Technical Field
And (3) agricultural non-point source pollution control at the bank.
Background
Non-point source pollution is a main source of water body pollution, causes eutrophication of lakes and reservoirs, destroys water body functions and brings huge negative effects on regional economy and ecological environment. How to grasp the law of non-point source pollution, analyze the pollution way, accurately evaluate the pollution condition, and bring the pollution condition into water resource planning is the key point for controlling the non-point source pollution, improving the water environment condition and increasing the available water resource quantity. The randomness of agricultural non-point source pollution is large, the source and the discharge point are not fixed, the time and space change range of pollution load is large, and the monitoring and the control are very complex. The non-point source pollution problem must be fully considered in the agricultural development and utilization process, the space-time characteristics of the agricultural non-point source pollution in the drainage basin are deeply researched, and the sustainable development of the economic society and the ecological environment is realized by establishing a shoreside agricultural non-point source pollution control technology.
Disclosure of Invention
The shore-side band-based agricultural Non-Point Source Pollution prevention and control technology is based on the SWAT model theory and based on remote sensing data and the GIS technology, a shore-side band Non-Point Source Pollution estimation model (NPSPEM) is established to analyze the shore-side agricultural Non-Point Source Pollution. The technology utilizes the advantages of GIS storage and analysis of spatial information to store information such as ecological factors in the shoreside zone, watershed pollution non-point sources and the like into a database, integrates a surface parameter inversion model and a non-point source pollution model, and can estimate the agricultural non-point source pollution and the shoreside zone pollutant reduction characteristics. The method mainly comprises the following steps: 1) ashore side band ecosystem factor: the method mainly comprises the parametric researches on plant types, community structures, ecological patterns, soil and water area backgrounds and the like; 2) shoreside zone biomass: the coupling of biomass and a non-point source pollution estimation model is mainly researched; 3) environmental factor of the bank band: the method mainly researches the assimilation of environmental factor precipitation, surface temperature, soil moisture, sediment content in a water area, eutrophication data in the water area and non-point source pollution estimation model input data in remote sensing inversion, and verifies a model output result.
On the basis of an NPSPEM model, a shoreside agricultural non-point source pollution control technology is provided, and the technology mainly comprises the following steps:
1) simulating and analyzing non-point source pollution of shoreside belt agriculture: on the basis of investigation of the river basin non-point source pollution, the pollutant migration characteristics under the conditions of the belt with the shore and the belt without the shore are contrastively analyzed, the river basin non-point source pollution load is calculated by utilizing an NPSPEM model, and the control effect of the belt with the shore on the non-point source pollution is analyzed.
2) The technique for preventing and controlling non-point source pollution in shoreside area agriculture: and (3) simulating the pollution control effect of different shoreside zone designs and constructions on the watershed by using a scene analysis method through an NPSPEM model, and providing an optimal prevention and control scheme.
Drawings
FIG. 1 is a technical circuit diagram of the agricultural non-point source pollution control technology based on the bank side band
Detailed Description
The research work takes ground observation-model construction-technology establishment and application as a main line, and combines the research contents of pollution monitoring, ground remote sensing observation, inversion and verification of various remote sensing information, construction of a shoreside non-point source pollution estimation model based on remote sensing, shoreside agricultural non-point source pollution prevention and control technology and application and the like (see figure 1).
Taking a typical small watershed of a certain water collecting area as a research object, observing the water quality change condition under the condition that the typical small watershed shoreside belt has no shoreside belt and the water quality change condition before and after passing through the shoreside belt under the conditions of different vegetation types and different widths by a fixed point test analysis method, and acquiring the data of the influence factors of the shoreside belt on the non-point source pollution transport; the method comprises the steps of improving the extraction precision of the bank side band space information by adopting a quantitative remote sensing analysis method, obtaining the bank side band plant types, community structures, ecological patterns, space parameters of soil, water background and the like, and environment factors of bank side band rainfall, earth surface temperature, soil moisture, water sediment content, water eutrophication and the like, establishing a remote sensing-based bank side band non-point source pollution estimation model, and realizing the analysis of the control effect of the bank side band on non-point source pollution by applying a remote sensing technology; a situation analysis method is applied, and the situation of the shore-side agricultural non-point source pollution under different schemes is simulated through the constructed NPSPEM model, so that the shore-side agricultural non-point source pollution control technology is provided and is demonstrated and applied in a typical area.
Claims (2)
1. A technology for preventing and treating agricultural Non-Point Source pollution based on a shore side band is characterized in that a SWAT Model theory is used as a basis, a Non-Point Source pollution estimation Model (NPSPEM) is established to analyze the agricultural Non-Point Source pollution of the shore side band based on remote sensing data and a GIS technology, the migration characteristics of pollutants under conditions of the shore side band and the Non-shore side band are contrastively analyzed on the basis of the NPSPEM Model, the NPSPEM Model is used for calculating the Non-Point Source pollution load of a drainage basin, and the control effect of the shore side band on the Non-Point Source pollution is analyzed; and (3) simulating the pollution control effect of different shoreside zones designed and constructed on the watershed by using a scene analysis method through an NPSPEM model, thereby providing an optimal prevention and control scheme.
2. The shoreside-band-based agricultural non-point source pollution control technology as claimed in claim 1, which is characterized by a shoreside-band non-point source pollution simulation model based on remote sensing and GIS technology and a shoreside-band non-point source pollution control technology under point-to-surface scale expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473715.3A CN111274663A (en) | 2018-12-04 | 2018-12-04 | Agricultural non-point source pollution prevention and control technology based on bank side band |
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| CN201811473715.3A CN111274663A (en) | 2018-12-04 | 2018-12-04 | Agricultural non-point source pollution prevention and control technology based on bank side band |
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| CN111274663A true CN111274663A (en) | 2020-06-12 |
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| CN201811473715.3A Pending CN111274663A (en) | 2018-12-04 | 2018-12-04 | Agricultural non-point source pollution prevention and control technology based on bank side band |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091052A (en) * | 2014-06-25 | 2014-10-08 | 安徽省环境科学研究院 | Non-point source pollution spatial distributed model |
| CN104268657A (en) * | 2014-09-30 | 2015-01-07 | 北京师范大学 | Drainage basin water ecological risk early warning and distinguishing method based on remote sensing |
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2018
- 2018-12-04 CN CN201811473715.3A patent/CN111274663A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091052A (en) * | 2014-06-25 | 2014-10-08 | 安徽省环境科学研究院 | Non-point source pollution spatial distributed model |
| CN104268657A (en) * | 2014-09-30 | 2015-01-07 | 北京师范大学 | Drainage basin water ecological risk early warning and distinguishing method based on remote sensing |
Non-Patent Citations (1)
| Title |
|---|
| 郭宏忠;江东;蒋光毅;史东梅;刘益军;于亚莉;汪三树;: "重庆市水土保持科技需求及重点领域" * |
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Application publication date: 20200612 |
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