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[1]CHEN Wei.Analysis and Forecast of Land Use Change Characteristics in Wushan County from 1990 to 2010 Based on RS and GIS[J].Research of Soil and Water Conservation,2017,24(04):89-94.

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Analysis and Forecast of Land Use Change Characteristics in Wushan County from 1990 to 2010 Based on RS and GIS

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 04 Page number: 89-94 Column: Public date: 2017-08-28

Title:: Analysis and Forecast of Land Use Change Characteristics in Wushan County from 1990 to 2010 Based on RS and GIS

Author(s):: CHEN Wei; College of Arts and Sciences, Shanxi Agricultural University, Taigu, Shanxi 030801, China

Keywords:: land use change; change characteristics; Wushan County; Markov chain

CLC:: F301.24

DOI:: -

Abstract:: Wushan County is located in the hinterland of the Three Gorges Reservoir area, is also one of the key construction areas of the Three Gorges resettlement area, further, is the typical sample of land use in Three Gorges Reservoir area. Therefore, We took Wushan County as the study area, and used the Landsat TM remote sensing images in 1990 and 2010 as the main data source to explore the spatial-temporal evolution during 20 years based on RS and GIS technology and other relative data, the land use change model, and used the Markov model to forecast the change characteristics and development trend in future. The results showed that the total areas of forestland, grassland and cropland occupied the dominate situation, and formed the current land use pattern; during the 20 years, the areas of forestland, grassland, orchard, water bodies and built-up land increased, on the country, the cropland and unused land decreased. Meanwhile, the increasing and decreasing areas of water bodies and cropland were the greatest, which accounted for 47.67 km² and 136.10 km², respectively. The forestland and water bodies had the high reserving rate, while the reserving rate for unused land was least, meanwhile, the transformation ration between forestland and cropland was higher, the adding area of forestland was maximum, the change rate of forestland was minimum, and change rate of built-up land was maximum. After 2090, the land use will reach the relatively stable state in the study area, which means that the percentage of forestland, cropland, grassland, water bodies, built-up land, unused land and orchard will be 52.96%, 6.15%, 26.69%, 8.71%, 1.38%, 0.04% and 3.97%, respectively.

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