A method to solve agricultural non-point source pollution

A technology for agricultural non-point source pollution and farmland, applied in the field of agricultural non-point source pollution, can solve problems such as non-point source pollution, and achieve the effects of protecting the ecological environment, low input cost, and easy technology

Active Publication Date: 2017-03-29
SHANGHAI ACAD OF AGRI SCI +1
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for solving agricultural non-point source pollution, which solves the problem of eutrophication of rivers and lakes caused by the loss of farmland nutrients with rainwater, and has better economic benefits

Method used

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  • A method to solve agricultural non-point source pollution

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Embodiment 1

[0053] A method to solve agricultural non-point source pollution, as attached Figure 1-3 Take 1 mu of farmland (length 33m, width 20m) as an example, including the following features: water ponds (60-90cm deep, 100-300cm wide at the top, and 50-150cm wide at the bottom) are set up around the farmland, that is, water The side of the pond has a certain slope to prevent the water in the pond from eroding and collapsing due to the straight slope; the bottom of the pond is compacted or laid with non-woven fabrics, and then a 15-20cm thick plow layer soil is laid and organic fertilizer is applied; The water depth in the pond is kept at 20-40cm, and the water depth can be adjusted according to the weather, precipitation and water storage in the pond; loach and fish are raised in the pond, cress is planted at the bottom of the pond, and corn and cauliflower are planted in the middle of the farmland ; There are also criss-cross drainage ditches in the farmland, and the drainage ditche...

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Abstract

The invention relates to a method for solving agricultural non-point source pollution. The method comprises the following steps: a pond surrounding the periphery of a farmland is arranged along the external contour of the farmland; a drainage ditch communicated with the pond is formed in the farmland; aquatic products are cultivated in the pond, and aquatic plants are planted at the bottom of the pond; a pool for intersecting the pond is arranged on the pond; two water passing ports communicated with the pond are formed in the side surface of the pool; meshes and sluices are mounted in the water passing ports; and a cement cover plate with a bearing effect is laid on the top port of the pool. The method, provided by the invention, has the advantages of low investment cost, long service life, good economic benefit and no secondary ecological pollution, and plays an important role in the protection of ecological environment and the prevention of water body eutrophication.

Description

technical field [0001] The invention relates to a method for solving agricultural non-point source pollution, belonging to the fields of agricultural ecology and environmental protection. Background technique [0002] Agricultural non-point source pollution refers to the pollution of water environment caused by nutrients such as nitrogen and phosphorus, pesticides and other organic pollutants through farmland surface runoff and farmland infiltration during agricultural production activities. On a global scale, agricultural non-point source pollution is becoming the main cause of water pollution. The control of agricultural non-point source pollution has not only gradually become the top priority of water pollution control, but also gradually become an important task for the sustainable development of modern agriculture and society. [0003] In the past 20 years, the control of agricultural non-point source pollution has mainly been to reduce the discharge of agricultural non...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H5/08E02B3/00A01K63/00
Inventor 吕卫光郑宪清张翰林李双喜袁大伟张娟琴何七勇
Owner SHANGHAI ACAD OF AGRI SCI
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