Ecological interception canal system in farmland

A channel system and ecological technology, applied in the field of agricultural channels and farmland drainage systems, can solve problems such as multi-cultivated land and ecological engineering occupation.

Inactive Publication Date: 2005-11-23
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

Utilizing the farmland ecological interception channel system provided by the present invention can not only effectively intercept the N and P nutrient elements in the farmland

Method used

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  • Ecological interception canal system in farmland
  • Ecological interception canal system in farmland
  • Ecological interception canal system in farmland

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] This embodiment is designed based on the farmland irrigation and drainage system in the Taihu Lake region of China.

[0023] refer to figure 1 , which is a cross-sectional schematic diagram of the farmland ecological interception channel system. The original farmland drainage channel is transformed into a channel with a trapezoidal cross-section, and the two side walls 1 and bottom 2 of the channel are hardened with honeycomb concrete plates.

[0024] figure 2 A schematic diagram of the sidewall and bottom structure of the farmland ecological interception channel system, from figure 2 It can be seen that the side wall 1 is provided with a number of honeycomb holes 3, and the bottom 2 is also provided with a number of honeycomb holes 3. Plants can be planted in the honeycomb holes 3 of the side walls 1, and the plants can be perennial and economical plants with strong absorption capacity for N and P nutrients; plants can also be planted in the honeycomb holes 3 of t...

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Abstract

The present invention discloses a kind of interception channel system for farmland ecology; the traverse section of the channel appears to be trapezium in shape. Both banks of the channel and the bottom are made of rigid concrete plate in the form of honeycomb structure; at the bottom of the ends of the channel are filtration boxes at interval in the form of coiled arrangement. The filtration boxes have holes all over on the four walls and in the channels are installed graduating valves close to the middle position are equipped with two water-controlled valves. And in the honeycomb holes pants are grown, which have a rather strong absorption of N. P nutritive elements in the farmland drainage. The rational structural design and arrangement of this invention can effectively intercept the N.P nutritive elements in the farmland drainage, thus reducing the rich nutrition by the water absorption. It is of great valve to propagate it in the non-point source pollution control in the farmland.

Description

technical field [0001] The invention belongs to a farmland drainage system and relates to an agricultural channel, in particular to a farmland ecological interception channel system for controlling agricultural non-point source pollution. Background technique [0002] Water eutrophication is a common environmental protection problem in all countries in the world, and our country is no exception. With the rapid development of our country's social economy, water eutrophication presents a general and increasingly serious development trend. The pollution sources that cause eutrophication of water bodies can be divided into point source pollution and non-point source pollution. Among them, non-point source pollution accounts for two-thirds of the total pollution, and the contribution rate of agricultural activities to non-point source pollution is as high as 75%. Therefore, effectively controlling the pollution of N and P nutrients in the farmland to the receiving water body has ...

Claims

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Application Information

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IPC IPC(8): E02B13/00
Inventor 杨林章周小平王建国王德建
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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