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[1]LIU Shaojia,REN Zhiyuan,YANG Wenyan,et al.Dynamic Changes of Soil Erosion Based on Markov Model—A Case Study of the Xi’an Metropolitan[J].Research of Soil and Water Conservation,2015,22(05):14-19,24.

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Dynamic Changes of Soil Erosion Based on Markov Model—A Case Study of the Xi’an Metropolitan

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 05 Page number: 14-19,24 Column: Public date: 2015-10-28

Title:: Dynamic Changes of Soil Erosion Based on Markov Model—A Case Study of the Xi’an Metropolitan

Author(s):: LIU Shaojia^1,2, REN Zhiyuan^1,2, YANG Wenyan^1,2,3, ZHOU Zhongxue^1,2; 1. College of Tourism and Environment, Shaanxi Normal University, Xi’an 710062, China;
2. Northwest Land and Resources Research Center, Shaanxi Normal University, Xi’an 710062, China;
3. Northwest Institute of Historical Environment and Socioeconomic Development, Shaanxi Normal University, Xi’an 710062, China

Keywords:: Xi’an metropolitan; soil erosion; dynamic changes; Markov Model

CLC:: S157;X171.1

DOI:: -

Abstract:: We took Xi’an metropolitan as the study area. Based on DEM data, remote sensing data and the economic and social statistics data, using RS and GIS technology, combining with the universal soil loss equation (RUSLE), we analyzed the dynamic change of soil erosion in Xi’an metropolitan in 2000, 2005 and 2010. On the basis of the quantitative calculation and application of Markov models, the dynamic changes of soil erosion areas of Xi’an metropolitan in 2015, 2020, 2025 were predicted. The results showed that:(1) from 2000 to 2010, on the view of time features, soil erosion presented the decreasing tendency in Xi’an metropolitan; on the view of spatial characteristics, soil erosion was more serious in north and south region, and was relatively light in central region; (2) from 2000 to 2010, various types of soil erosion areas shifted from higher to lower level erosion types, specification of Xi’an City circle of soil erosion intensity showed the trend of decrease indicating that soil erosion intensity presented the decreasing tendency in Xi’an metropolitan; (3) predicted value results show that, the tiny degree of soil erosion area will increase year by year, light and above the light degree soil erosion areas will reduce year by year from 2015 to 2025, the overall trend will tend to a status of benign development.

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