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Suitability Research of Reserved Arable Land Cultivation in Arid Oasis

Author: FanZhuoBin
Tutor: LiXiaoDong
School: Xinjiang University
Course: Human geography
Keywords: Untouched arable land Suitability assessment GIS The Weigan and - Kuqa River Delta Oasis Land use
CLC: F224
Type: Master's thesis
Year: 2010
Downloads: 91
Quote: 0
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Abstract


Status of land use has a direct impact on the the oasis ecological stability and socio-economic development. Select suitable land for the rational development, can effectively balance the quantity and quality of arable land, the oasis ecosystems play a modified role, in order to protect the oasis of sustainable development. Arid oasis of economic development in recent years, driven by the oasis population growth, land carrying the pressure increases; led to the decline in the quality of cultivated land, oasis fringe area of ??desertification serious blind development of land resources, land use structure further deterioration. Ensure the dynamic equilibrium of the total arable land in order to ensure the amount of arable land ownership, the state raised the requirements of the \area characteristics determine cropland resources in line with the sustainable development concept, has become one of the priorities in this stage of land resources research. The paper selects typical arid region the Weigan and - Kuqa River Delta Oasis as a target, based on \Delta oasis status of land use structure and characteristics, extract the natural, ecological, and social aspects of a total of 17 cropland resources in arid oasis suitability evaluation factor, the application of spatial interpolation, multiple regression analysis, neural network model, level statistical methods and mathematical methods of analysis, and other places, build a the the natural suitability subsystem based, as a secondary reference to the ecological suitability and social suitability subsystem evaluation model, and ultimately the Ugan - Kuqa River cropland resources Suitability Evaluation and divided cropland resources in the development of appropriate level area. The study concluded that: (1) the study area natural, ecological, social desirability are moderate, generally showing existing oasis for the center, east, west progressively decreasing trend. (2) higher evaluation unit fitness vast majority located Weigan River - Kuche River - between the Tarim River Delta region. In the case of to ensure ecological environment security in the region is expected to become the focus of cropland resources development direction in the future. (3) appropriate or more appropriate for the development of the total cropland resources 257901.56hm2. Abundant water, ample liquidity conditions, if all development is expected to be a net increase of arable land area up to 200000.00hm2. The rest of the region should focus on maintaining and improving of the quality of the existing arable land, maintain the stability of the ecological environment. (4) For the purposes of counties, Kuqa County, Shaya fitness score higher, untouched arable land suitable for development and distribution of resources more, which Kuche County, slightly higher than the Shaya; while new and County cropland resources due to natural suitable degree low, the need to limit development. Kuche, Shaya, new and three counties it is necessary to establish a collaborative and harmonious development of the strategy, to try to explore a more rational land use structure and resource allocation, to avoid the formation of their own business, repeat the development and construction of the situation. (5) in the study area untouched arable land resources development should focus on bias Kuqa County, Shaya, Kuche, Shaya between the town red - Hani Kolkata wood the town - Xinken farm line dominated. New and counties should focus on land consolidation to improve the quality of existing cultivated to fill the blank area between the existing agricultural areas of arable land, so that the quality and quantity of arable land resources to achieve great breakthroughs. Cropland resources development should pay attention to the prevention of secondary salinization, sand, and other ecological security issues should be a rational allocation of resources, and good shelterbelts irrigation and drainage, and other supporting facilities construction work to ensure the sustainable development of the study area.

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CLC: > Economic > Economic planning and management > Economic calculation, economic and mathematical methods > Economic and mathematical methods
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