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[1]LIU Wen,CHEN Shifa.Analysis on Characteristics of Land Use Changes Along the Terrain Gradient Based on GIS—A Case Study of Datang Town of Shaoguan City[J].Research of Soil and Water Conservation,2015,22(03):79-82.

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Analysis on Characteristics of Land Use Changes Along the Terrain Gradient Based on GIS—A Case Study of Datang Town of Shaoguan City

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 03 Page number: 79-82 Column: Public date: 2015-06-28

Title:: Analysis on Characteristics of Land Use Changes Along the Terrain Gradient Based on GIS—A Case Study of Datang Town of Shaoguan City

Author(s):: LIU Wen¹, CHEN Shifa²; 1. Shaoguan City Land Resources Technology Center, Shaoguan, Guangdong 512025, China;
2. College of Tourism and Geography, Shaoguan University, Shaoguan, Guangdong 512005, China

Keywords:: land use; granding index; terrain niche index; terrain gradient; GIS

CLC:: F301.24

DOI:: -

Abstract:: Terrain is one of factors affecting the dynamic distribution of land use pattern. Datang Town of Shaoguan City was taken as the study area. The height map and the gradient map were generated based on DEM, and land use pattern was extracted based on remote sensing images from 2009 to 2013, which were used to calculate the slope gradient, altitude gradient granding index and topographic index. Results showed that: (1) granding indexes of cultivated land, water areas gradually declined, granding index of woodland gradually rose, the slope classification indexes of the grassland, urban village and industrial and mining land, traffic land and unused land rose first ant decline later, height granding indexes of these lands declined first and rose later, terrain grading indexes of these lands declined first and rose later; (2) the terrain and granding indexes of the town village and industrial and mining land rose, the indexes of the other land declined, but the declined degree was small; (3) granding and the terrain indexes of the other land use types except in addition to the woodland concentrated to be in the low terrain range. Height, slope and terrain had important influences on the evolution of land use type granding pattern, and at the same time, the development of the urbanization had great influence on evolution of the land use type distribution pattern, but to some extent, followed the granding index and the topographic index.

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