Dynamic monitoring of soil wind erosion in Inner Mongolia of China during 1985–2011 based on geographic information system and remote sensing

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• 作者：Yi Zhou ; Bing Guo ; Shixin Wang ; Heping Tao ; Wenliang Liu ; Guang Yang…
• 刊名：Natural Hazards
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：83
• 期：1
• 页码：1-17
• 全文大小：2,673 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Hydrogeology
  Geophysics and Geodesy
  Geotechnical Engineering
  Civil Engineering
  Environmental Management
  
• 出版者：Springer Netherlands
• ISSN：1573-0840
• 卷排序：83

文摘

In Inner Mongolia, soil wind erosion is a serious environmental problem. The aim of the study was to develop an estimation model to analyze the spatial and temporal changes of soil wind erosion during 1985–2011 based on geographic information system and remote sensing. The results showed that wind erosion was widely distributed in Inner Mongolia with an area of approximately 95 × 104 km2. During 1985–2011, wind erosion has deteriorated over the entire region of Inner Mongolia, which was indicated by enlarged zones of erosion at severe and intensive grades. There was a significant difference in change intensity among different plant types that zones occupied by barren or sparsely vegetation showed the severest deterioration while the wind erosion of cropland showed a slight improvement in wind erosion. In addition, a significantly negative relation was noted between change intensity of wind erosion and vegetation coverage. Furthermore, the change rate of wind erosion was negatively correlated with the number of days (wind velocity ≥6 m/s). The relationships between soil types and change intensity differed with the surface distributions of sandy, loamy and clayey soil with particle sizes of 0–1 cm. The soil type of haplic luvisols showed the strongest resistance to wind erosion. The results have certain significance for understanding the mechanism and change process of wind erosion and can provide a scientific basis for the prevention of wind erosion in Inner Mongolia.KeywordsWind erosionEstimation modelInner MongoliaSoil erodibilitySnow cover daysAridity index