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Jinshan Area Of Farmland Irrigation And Drainage System And Improvement Measures

Posted on:2013-01-29Degree:MasterType:Thesis
Country:ChinaCandidate:H J QiFull Text:PDF
GTID:2213330362467624Subject:Agricultural extension
Abstract/Summary:PDF Full Text Request
Mountain area of farmland irrigation and drainage systems in agriculturaldevelopment in different historical periods, a standard scale has a large difference, sincethere are still19.2%the proportion of irrigation and drainage in-one system. Thesefacilities for heavy rain occurs, often farmland water, low water quality problems, whichseriously affected the normal production of field crops and vegetables.This article conducted a comprehensive survey of the status of the Mountain areawithin the irrigation and water conservancy facilities, and compared the two main types-irrigation and drainage unity, the degree of displacement and velocity of water quality,crop water requirement to meet the irrigation and drainage separation system indifferencesfound: Both irrigation and drainage systems performance is quite in the summer climate isrelatively stable year in the two systems, including irrigation and drainage in-one system,the cost advantage. Year in the summer and frequent rainstorms, irrigation and drainagein-one system could easily lead to the accumulation of water to crop production or even alarge area of crops. Irrigation and drainage separation system more conducive to the cropto withstand harsh weather conditions to ensure stable crop yields.On this basis, engineered parametric analysis, a number of measures for improvement of existing irrigation and drainage facilities. Laying of underground pipesystem to increase irrigation and drainage facilities background one can improve systemwaterlogging. Wide ridge in the context of the open farmland into a narrow ridge, increasein the polder area, increasing the emergency pump and other measures to increase thedisplacement of lower Tian surface water.
Keywords/Search Tags:Farmland, Separation of irrigation and drainage, Irrigation and drainage inone, Jinshan
PDF Full Text Request
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