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Wysłany: Sob 9:10, 02 Kwi 2011 Temat postu: moncler outlet 中国东Ô |
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中国东北山地集水区和溪流结构模拟分析
agement:balancingsustainabi[ityandenvironmentalchange[M]NewYork:Spr】“gerVar【ag,ghd glätteisen,l992:5424][5][6][7:[8]张盒池一胡海渡,阮宏华.等长江流域的水土流失及防治对策_J:.南京林业大学学报,l999,mbt schuhe koeln,23(2):l7吴征镒.中国植被FM].北京:科学技术出版社,l995周以良.中国东北植被地理[M]北京:科学出版社,oakley sunglasses,1997:i-2AgbuPA,JamesME.TheNOAA/NASApathfinderAVHRRlanddatasetuger。smanual[M]∥GoddardDistributedActiveArchiveCenter.NASA.Greenbelt:OoddardSpaceFlightCenter,1994:l~33JensonSK—DomingueJ().Extractingtopographicstructurefromdigitalelevationdataforgeographicinformationsystemanalysis[J].PhotogrammetrieEngineeringandRemoteSensing,1988,54(11):l593M0DELANDANALYSISOFSTRUCTUREF0RWATERSHEDANDSTREAMINM0UNTAINAREA0FN0RTHEAST0FCHINAZhangJunliegeefI1feScienceZanGuoshengBeijlngNormalUniversityGeJianping100875.Beijing,China)AbstractThestructureofwatershedsandstreamsinthemountainsofnortbeastismodeledwithGTOPO30DEMdata.Thespatia1distrihutionofdifferentorder’sstreamsisstudiedwiththeslopeandelevationdata.TheBUFFERareasthatthewidthis50metersbystreamsarebuilt.thenthed1stribut1oncharactersofNDVIinBUFFERareaofdifferentorder。sstreamsarestudied.Finally.itconcludesthattheorderofstreamisanegativerelationtoelevation,moncler outlet,slopeandNDV1.Thecorrelationcoefficientis一0.2,一0.09and一0.18,respectively.Withenhanceofstream'sorder.thespatialdistrihutionofstreamstendstoareainwhichtheelevationislowerandslopeismild.Thevegetationaround1owerorder’sstreamsisbetterthanthataroundhigherordersstreams.andthechangeofNDV1around1owerordersstreamsismorestablethanthataroundhigherorder’sstreams.KeywordsGIS;DEM,ecco shoes;streamorder:watershedecosystem
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