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Sichuan Province Baozhusi Green River Reservoir Area Of ​​agricultural Land Resources For Sustainable Development And Utilization Of Research

Posted on:2002-07-30Degree:MasterType:Thesis
Country:ChinaCandidate:H L LiFull Text:PDF
GTID:2206360032454916Subject:Soil science
Abstract/Summary:PDF Full Text Request
Constructing the water and electricity station in Sichuan province Guanyuan Baozhushi reservoir has made the economic development and environmental protection of the reservoir area becomes the nationwide focus to be paid close attention. To build the Baozhushi reservoir area cause seriously affect of the Area抯 agricultural land. But after the reservoir been completed, the reservoir will own plentiful water resource and water energy resource, in addition that the state supply plenty of fund, It also brings some opportunity. It is because the Baodian reservoir area is faced with a tremendous development opportunity and challenge. For this reason Southwest Agricultural University bears the research topic that Sichuan province migration office has assigned: 揟o study developing and utilizing comprehensively the land resource of Baozhushi Qingchuan reservoir area? The Article is a part of them. On basis of collecting data and inquiring and taking a sample in reservoir area, the Article applies comparing and analyzing means to go on data抯 renovating, summing up and analyzing step by step. It unites theory with practice, It tightly unites present problem with sciatica harness programmed and unites these date (relief map, soil map, land usage current condition map) with on-the-spot prospecting and inquiring rese&ch, trial research. Making use of the advanced experience at home and abroad and important research fruit. It poses technological measure of sustainable developing and utilizing the agricultural soil resource in reservoir area. Meanwhile, the Article mainly inquire into optimization model and auxiliary project technology about sustainable development and utilization of agricultural land in Qingchuan reservoir area. By small area trial and the successful experience of model trial, it takes measures suited to local conditions. We should spread step by step in successful model in order to fan out from point to area. Let soil resource of reservoir Area turn potential productive forces into realistic ones, and put forward key project. Finally, it makes some conclusion as follow: (I)The middle-or-low-yield land is transformed and utilized to improve soil and to build up fertilizer. 甕aoduxiaog shipinchun was set an example, which the problem concerning engineering measure and bioengineering measure should be tackled in a comprehensive way. The slop-thin-soil and difficult-utilized-soil before turn into thick soil layer terrace land. The soil, which used to loss moisture and fertility and air turn into preserving moisture and fertility and air. Its thickness changed 20棐 S0centimetre into 50?I 20centimetre.After transforming soil, the silt content in run-off reduces more 15.2% than before in July and August and the conglomerate content reduces more than 30%. At the same time, it improves organic matter and the soil structure, and thickens the vegetable soil, and strengthens the capacity of water-holding. ㏕he yield and economic returns are anglicized by contrasting the different pattern in the different model after advanced technology is introduced. The result shows: on the basis of wheat, corn~ potato drought-triple-cropping system basic model, time crops for rotation is made use of, in the middle of stud plot interpolating potato. peanut. soybean. vegetables improve greatly yield and economic. The per mu yield is lO4Okg,which increases 38.4% in contrast to before. (2)To utilize the decreasing area, its potential ~s considerable. For the help of the GIS, it can get the data relief map by simulating the data relief of the decreasing area in Baodian Qingc...
Keywords/Search Tags:migration of reservoir area, the resource of agricultural land, utilize and develop, ecologic building
PDF Full Text Request
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