Vadose water collector indry land

A technology for leaking water and dry land, applied in sampling devices and other directions, can solve the problems of inability to accurately reproduce the actual field environment, limitations of field experiments, large construction volume, etc. Effect
CN1818603AInactive Publication Date: 2006-08-16INST OF SOIL SCI CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF SOIL SCI CHINESE ACAD OF SCI
Publication Date
2006-08-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

A leakage water collector for dry farm is prepared as setting half-round collector horizontally with its planar surface upwards, setting a numbers of holes on planar surface of said collector, connecting said collector to sealed water collection barrel being set at lower position through water guiding tube at bottom of said collector. The air vent tube and water outgoing rube are set on the top of sealed water collection barrel.
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Description

technical field

[0001] The technology of the invention belongs to the technical field of agricultural environment experiment, and the device cost is low, and the buried construction is simple and convenient. The in-situ sampling is realized, the excavation of water intake trenches is avoided, the restriction of terrain conditions on the experiment is reduced, and the construction difficulty of embedding experimental devices is reduced. Background technique

[0002] Studies have shown that about 30-50% of the fertilizers applied to the soil in the world enter the groundwater through soil leaching (see Bi Jingwei, Zhang Jiabao, Chen Xiaomin, Zhu Anning, Feng Jie: "Soil water leakage and nitrate nitrogen in farmland soil Simulation study on leaching", "Journal of Irrigation and Drainage", 2003, 22[6]). Research on farmland soils in the Taihu Lake area shows that nitrate nitrogen leaching is the main way of nitrogen loss (see Wang Cairong, Hu Zhengyi, Yang Linzhang, Lu Jialong,...

Claims

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