Study On The Construction Of Ecological High-standard Farmland In Jiuhua Town Of Rugao

In the process of high-standard farmland construction in China,the establishment of corresponding ecological model is ignored,which will hinder the development of agriculture towards green and sustainable agriculture.Therefore,it is necessary to establish the ecological model of high-standard farmland to protect the ecological environment,rationally utilize water resources,and improve the economic and ecological benefits of water resources in farmland.In this paper,a set of ecological model suitable for the high-standard farmland in Tongnan high-sand soil area was established through comparative analysis.The main research contents of this paper are as follows:(1)This paper systematically summarizes the research achievements and existing problems of high standard farmland ecological construction at home and abroad;Second,the farmland drainage can not be effectively managed in the construction of high standard farmland,resulting in the waste of water resources and serious farmland non-point source pollution.Based on the above two points,the basic idea of establishing ecological high standard farmland is put forward.(2)According to the actual situation of different regions,Jiuhua Town,Rugao City,four ecological irrigation and drainage modes were established,including "open channel+open ditch" mode,"pipeline+open ditch" mode,open channel+concealed pipe mode,and "pipe+ concealed pipe" mode.According to the characteristics of dense distribution of river ditches in Jiuhua Town,all schemes are separated from each other,and the return water of irrigation is fully utilized to reduce the non-point source pollution of farmland.According to the actual situation of Jiuhua Town,the construction scheme of ecological channel,the construction scheme of field ecological interceptor ditch and the construction scheme of ecological river channel are put forward.(3)The typical fields in Jiuhua town were selected to analyze the application of each ecological high standard farmland construction mode.The results show that the ecological"open channel+open ditch" and ecological "pipeline+open ditch" construction schemes have higher ecological benefits,the ecological "pipeline+open ditch" and ecological"pipeline+concealed pipe" construction schemes have higher water,land and labor saving benefits,and the ecological "open channel+open ditch" construction scheme has lower cost and ecological benefits,It can be used in less developed areas with serious agricultural non-point source pollution.