基于RS、GIS与景观格局分析的白洋淀流域生态环境变化研究.pdf

  本文关键词：基于RS、GIS和景观格局分析的白洋淀流域生态环境变化研究，由笔耕文化传播整理发布。

基于RS、GIS和景观格局分析的白洋淀流域生态环境变化研究硕士论文 Abstract isthe freshwater Lake andmost lakeinNorth China ithas Baiyangdianlargest typical Plain，and on environmentinNorthChina．In influences the decades，the important ecological past ecological environmentin has alotduetoclimate andhuman Baiyangdianchanged changes activityNamely, decreased is sediment Watetheadshave accumulation serious，and becomes obviously,pollution in Lake serious．The environment isa ofwholewatershed problemofecological Baiyangdianproblem andsocialfactorsin anddownstream of natural，economical involving upstream regions．Thechanges in not relatetoitsconditionsof and environment only natural，economicalsocial，，but Baiyangdian also resources andthe coverconditionin the refertothewater exploitationvegetation upriver,and alloverthe ismore to of watershed．Therefore，it landscapepatlem pmcticaIimportantstudy changes as the environment watershedwhole． ecological changesofBaiyangdian ofRS of the Withthe difficulty informationof technique，the obtaining ecological application data RScan the indifferent in timeand environmentissolved provide space，in in distinguish itcall datasources fromdifferent and coming resolution， spectrum，andprovide time，spacespectrum and and real―timedatasources．Italsocanfindoutthe itcanalso economy，shortcut changed provide to the andtellthe trends．Contrastotherconventional change change measures，RS region，quantified has characteristicof and of Information a precision．The particular speediness techniqueGeography and moreand hasa of becomesmature more，which ability analysis． System practical strong special the of and with datacollectioncanbe data,new analysisdealingampleoriginal spatial By technique attained，Sowe the informationof elementin suchas landscape many caD．getchanged aspects and etc． spaceposition quantity,str

  本文关键词：基于RS、GIS和景观格局分析的白洋淀流域生态环境变化研究，由笔耕文化传播整理发布。