Yi-shu River Water Environmental Changes In The Upstream Water Of Qing Dynasty

The upstream region of Yi-shu River in Shandong Province,as an independentgeographical unit relatively, the water environment has its own uniqueness. For thispurpose, the author have studied the historical process of water environment of floodsand droughts, changes in rivers and lakes, and the use of water resources, analyzed thewater environmental changes of climate, topography, soil, vegetation, populationgrowth, water use and other changes that affect the natural and social factors,summarized the characteristics of the water environment changes and the local naturaland social impacts for the time period in the Qing Dynasty. Wish to provide usefulinspiration and help for coordinated development of water environment in theupstream region of Yi-shu River.Papers in the preamble explains the background of the research problem, andreviews of related research, and clarifies the purpose and basic ideas.Text is divided into four chapters. Chapterâ… introduces natural environment andhistory administrative region of the upstream region of Yi-shu River in QingDynasty in order to facilitate understanding of the content of the article. Chapter IImainly on the importance of environmental factors affecting water - floods anddroughts, made a quantitative analysis of flood and drought disasters, summarized thecauses and characteristics of multiple. Chapter III number of major changes on therivers and lakes and historical process analysis, discusses the causes and impacts ofchanges. Chapter IV through the rise and fall of water project construction andshipping of the causes and types, summed up the use of water resources on the impactof nature and society.The last part of the article is the conclusion, reached the conclusions of thisstudy.