Multi-intercepting and treating system for agricultural non-point source pollution in three gorges reservoir area small watershed

A technology of agricultural non-point source pollution and the Three Gorges Reservoir area, which is applied in the field of agricultural non-point source pollution control, can solve the problems of difficult control, wide coverage, and large investment, and achieve the prevention and control of non-point source pollution, low investment, and increased contact area Effect

Inactive Publication Date: 2014-07-16
SOUTHWEST UNIVERSITY
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Problems solved by technology

[0003] Agricultural non-point source pollution, also known as agricultural non-point source pollution, also known as agricultural diffuse pollution, has the characteristics of randomness, potential, intermittent, hysteresis, large volume and wide area, etc. It is difficult to control, involves a wide range of areas, and requires a lot of investment and slow

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  • Multi-intercepting and treating system for agricultural non-point source pollution in three gorges reservoir area small watershed

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Embodiment

[0025] Example: see figure 1 , a multiple interception and absorption system for agricultural non-point source pollution in the small watershed of the Three Gorges reservoir area, including multi-level ecological units set up from top to bottom along the hillside. The ecological unit includes:

[0026] Residential unit distributed on the top of the hillside, the residential unit includes a number of scattered settlements on the top of the hillside; scattered livestock and poultry breeding in the residential area, so that the pollution source is more dispersed. A livestock and poultry manure treatment system is installed in the residential unit. The livestock and poultry manure treatment system is a land treatment system or a biogas generation system; the livestock and poultry manure is treated and then discharged, thereby effectively reducing pollution at the source.

[0027] A dry sloping land unit located in the middle and upper part of the hillside and below the settlement...

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Abstract

The invention discloses a multi-intercepting and treating system for agricultural non-point source pollution in a three gorges reservoir area small watershed. The multi-intercepting and treating system comprises multiple levels of ecological units arranged from top to bottom along the hilly land. The ecological units comprise housing estate units distributed on the top of the hilly land, drought sloping field units located on the upper middle portion of the hilly land and below housing estates, paddy field zone units located below the drought sloping field units, hydro-fluctuation zone units located below the paddy field zone units, and a riverway located at the bottom of the hilly land and below the hydro-fluctuation zone units. A control system combining the source controlling, the process blocking and terminal regulating and controlling is formed, the agricultural non-point source pollution can be effectively intercepted and treated, and the multi-intercepting and treating system is especially suitable for preventing the agricultural non-point source pollution in the three gorges reservoir area small watershed.

Description

technical field [0001] The invention relates to the technical field of agricultural non-point source pollution control, in particular to a multiple interception and absorption system for agricultural non-point source pollution in small watersheds in the Three Gorges reservoir area. [0002] Background technique [0003] Agricultural non-point source pollution, also known as agricultural non-point source pollution, also known as agricultural diffuse pollution, has the characteristics of randomness, potential, intermittent, hysteresis, large volume and wide area, etc. It is difficult to control, involves a wide range of areas, and requires a lot of investment and slow to bear fruit. In recent years, point source pollution has been gradually controlled and treated. Agricultural non-point source pollution, as the main pollution source of water eutrophication, has attracted widespread attention. The research on non-point source pollution has also become an active field of enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00A01G1/00
Inventor 谢德体倪九派丁恩俊魏朝富高明
Owner SOUTHWEST UNIVERSITY
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