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The Study Of Using Remote Sensing Data To Monitoring The Biodiversity Of Vascular Plants

Posted on:2012-10-08Degree:MasterType:Thesis
Country:ChinaCandidate:D S LiangFull Text:PDF
GTID:2143330335967308Subject:Ecology
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Biodiversity is the development result of the lives on earth through billions of years of evolution. It is the material base to the survival of humans as well.This paper aimed at studying the relationship between the remote sensing data and biodiversity, on the base of the heterogeneity hypothesis, trying to find some quantity relations between biodiversity and several typical vegetation indexes of remote sensing data.The main conclusions and innovation points are as follows:1) Based on the hypothesis of spectral heterogeneity, we put forward a method to monitor the forest biodiversity by the remote sensing data. The result shows that there exits a high correlation between the SAVI and the forest biodiversity. So vegetation indexes can reflect the forest biodiversity to some extent.2) Using the linear regression method, take the forest vegetation Shannon diversity index as the dependent variable, the soil adjusted vegetation index (SAVI) index, elevation (DEM) as the independent variable to do the multiple regression analysis, we got a simulation curve:Y=-1.124+6.95 *SAVI-.006*DEM, and the correlation coefficient:0.554.3) Based on the theory of rarefaction curve, we established a rarefaction curve between the remote sensing image of NDVI and forest diversity. Directly from the curve we can see easily know theα,β,γdiversity.αβγ...
Keywords/Search Tags:plant diversity, remote sensing, spectral heterogeneity
PDF Full Text Request
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