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[1]HAN Xueying,YANG Guang,QIN Fucang,et al.Spatial and Temporal Dynamic Patterns of Sandy Land in Mu Us in the Last 30 Years[J].Research of Soil and Water Conservation,2019,26(05):144-150,157.

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Spatial and Temporal Dynamic Patterns of Sandy Land in Mu Us in the Last 30 Years

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 05 Page number: 144-150,157 Column: Public date: 2019-09-06

Title:: Spatial and Temporal Dynamic Patterns of Sandy Land in Mu Us in the Last 30 Years

Author(s):: HAN Xueying¹, YANG Guang¹, QIN Fucang¹, JIA Guangpu¹, LING Xia¹, GAO Gang²; 1. College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 0. 0018, China;
2. Hohhot Forest Bureau, Hohhot 010020, China

Keywords:: Mu Us sandy land; desertification; dynamic change; gravity center migration

CLC:: P941.73

DOI:: -

Abstract:: The spatial and temporal dynamic patterns of desertification in Mu Us sandy land region in the last 30 years was studied in this research. The desertification index and the migration of desertification gravity center were calculated by 7-period remote sensing images from 1990 to 2017. The results show that:(1) desertification land area has been reduced by 1 684.09 km² with an average of 62.37 km²/a from 1990 to 2017, which indicates that the development of desertification is in a reversal trend; (2) the average desertification indices are 2.45 (rapid development) between 1990 and 2000, 2.30 (rapid reversal) between 2000 and 2010, and 2.01 (stable reversal) between 2010 and 2017; (3) the gravity center of extremely-severe desertification land moved only 3.42 km westward; the gravity center of severe desertification land moved 8.80 km northwest; the gravity center of moderate desertification land moved 5.42 km northwest; the gravity center of mild desertification land moved 9.90 km southeast from 1990 to 2017; from west to east, the range of gravity center of desertification land in each grade is in turn extremely severe desertification, severe desertification, moderate desertification and mild desertification. In the process of desertification prevention and control, different countermeasures should be taken to effectively improve the environment of sandy area according to different land types.

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