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The Analysis According To RS And GIS For The Characteristic Of The Soil Erosion Space Difference

Posted on:2007-04-23Degree:MasterType:Thesis
Country:ChinaCandidate:X X LiFull Text:PDF
GTID:2133360185953960Subject:Physical geography
Abstract/Summary:PDF Full Text Request
In resent years, as the global population pressures and destruction of vegetation growing, the growing phenomenon of soil erosion and the impact zone gradually expand to become a serious global environmental problems and disasters, which has been a threaten for the survival and development of the human being. Therefore soil erosion as a major environmental problem worldwide has been more and more concerned by governments and science and technology workers around the world.This paper has chosen the Luoning County in the west mountains region of Henan province as a case example District. Under the technical support of RS and GIS, and with the help of the TM image data of a time, this paper has carried on a research about the soil erosion condition of the Luoning County. It can quickly know the space distribute structure of soil erosion, and the soil run of condition of dissimilarity erosion strength at that time's cross section under the influence of plant quilt and geography (slope) and LUCC etc. And further inquiry into the relation of each factor and the soil erosion. It expands a kind of new fast method, not only announce to the public that district soil erosion occurrence development regulation, but also provide science basis for water and soil conservation ecosystem the environment construction programming etc. This paper has important meaning to carry out the sustainable development and ecosystem environment construction of Yiluo river area.The full text is divided into eight parts totally.In the first part, the background of the research, the meaning of the study and the selecting of the study case as well as the technique procedure of this paper is simply narrated.In the second part, from mechanism, speed and model etc, the international and internal study of the soil erosion are looked back in brief.In the third part, the basic theories and method of the soil erosion including the...
Keywords/Search Tags:soil erosion, RS, GIS, Luoning County, vegetation coverage, vegetation index, NDVI
PDF Full Text Request
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