Research On Water And Soil Conservation And Regional Economic Sustainable Development In The Much Macro-sand District Of The Northern Area Of Shaanxi Province

the much macro-sand district situated in the loess plateau of the northern area of Shaanxi province is regarded as the main source of the macro-sand silting the middle passage of the Yellow River, and is being studied by many people. The main macro-sand district in the Northern area of Shaanxi Province is an important part of the much macro-sand district in the middle area of the Yellow River, accounting for 55.4% of the whole area of. This area produces 180 million tons, accounting for 56.42 of it. It not only makes the regional environment worse and agricultural production drop, but also makes the whole human environment reach crisis point; the green project that the country implements means that the vegetation has been recovering at a very fast rate, however it makes many peasants lose their jobs and they have to face the problem of choosing a new occupation;the development of local industry at full speed makes the region's economy greatly strengthened , makes the people see hope that tue district will shake off poverty, but such strong industrial activity makes a new source of increased soil erosion. Correct water and soil conservation is beneficial to the regional development plan makes and the sustainable development of the regional economy.Dependent on the large number of on-the-spot inspections, and drawing support from technology, such as GPS,RS,GIS etc the author carries on research in the northern area of Shaanxi province, finding that there are obvious coupling relations between the economic development and water and soil conservation problem, in which one is the prerequisite of solving the other. The thesis makes an effort to innovate in some extent, in terms of theory and practice, especially concentrating on the measures underdiscussion.1. Comments on the current research situation of soil erosion and economic development of the main macro-sand discussed district in the northern area of Shaanxi province, in a comprehensive way, summarising achievements and experiences that earlier researchers studies, analysing deficiencies in past research, probing into the significance of investigating this district further. Pointing out that there are three new trends of water and soil erosion in the area, firstly the city enlargement gives rise tc soil erosion, secondly the county-road and other building programs increase soil erosion, thirdly mining leads to erosion.2. Analyses the relationship between the eeonotnie development of the northern area of Shaanxi province, and water and soil conservation in an all round way, for the first time, finding that there is a strong coupling relation between the two factors. The paper analyses that the real reason lor water and soil erosion is poverty, and economic development can improve water and soil conservation and environment improvement. Meanwhile, it points out that coupling relations between water and soil conservation and area economic development will be strengthened with the further economic development. So local economic development is a main way to maintain the construction of ecology environment. The research put forwards a new way to resolve the problem of water and soil conservation and the construction of ecology environment in the much macro-sand district of the northern area of Shaanxi province, ie. to solve the problems on population,domestic animals and energy.3. Systematically analyses the potential advantages of the main macro-sand discussed district in the north area of Shaanxi province overall and at the same time pointing out that the undcrdevelopment restricting the regional economic development. The research, for the first time, creates and uses the geographical comment system of regional economic development potential. It is used to evaluate the potential of economic development in Yulin City and Yan'an City, systematically. Accordingly, development in 19 counties of this area has been deeply evaluated. Regional ecology construction has been divided in terms of thesoil erosion status and the ecological construction aims.4.