本文關(guān)鍵詞：基于RS、GIS和景觀格局分析的白洋淀流域生態(tài)環(huán)境變化研究，，由筆耕文化傳播整理發(fā)布。

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基于RS、GIS和景觀格局分析的白洋淀流域生態(tài)環(huán)境變化研究碩士論文AbstractBaiyangdian Lake is the largest and most typical fresh water lake in North China Plain,and it hasimportant influences on ecological environment in North China.In the past decades,the ecologicalenvironment in Baiyangdian has changed a lot due to climate changes and human activity Namely,Watetheads have decreased obviously,pollution is serious,and sediment accumulation esserious.The problem ofecological environment in Baiyangdian Lake is a problem ofwhole watershedinvolving natural,economical and social factors in upstream and downstream regions.The changes ofenvironment in Baiyangdian not only relate to its conditions of natural,economical and social,butalso refer to the water resources exploitation and the vegetation cover condition in upriver,and thechanges of landscape patlem all over the watershed.Therefore,it is more pmcticaI important to studythe ecological environment changes ofBaiyangdian watershed as whole.Wit... 內(nèi)容來自轉(zhuǎn)載請(qǐng)標(biāo)明出處.

  本文關(guān)鍵詞：基于RS、GIS和景觀格局分析的白洋淀流域生態(tài)環(huán)境變化研究，由筆耕文化傳播整理發(fā)布。