Dynamic monitoring of soil wind erosion in Inner Mongolia of China during 1985–2011 based on geographic information system and remote sensing
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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DOI：
10.1007/s11069-015-1763-1
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发表时间：
2016-08
期刊：
影响因子：
3.7
通讯作者：
Yi Zhou;Bing Guo;Shixing Wang;H. Tao;Wenliang Liu;Guang Yang;Jinfeng Zhu
中科院分区：
文献类型：
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作者：
Yi Zhou;Bing Guo;Shixing Wang;H. Tao;Wenliang Liu;Guang Yang;Jinfeng Zhu
在内蒙古，土壤风蚀是一个严重的环境问题。基于地理信息系统（GIS）和遥感技术，建立1985-2011年土壤风蚀量时空变化估算模型。结果表明，内蒙古地区风蚀面积约95 × 104 km 2。1985-2011年，内蒙古全区土壤风蚀总体呈恶化趋势，表现为严重和强烈风蚀区带扩大。不同植被类型间的变化强度存在显著差异，其中植被稀疏或贫瘠的地区土壤风蚀强度最大，而农田土壤风蚀强度略有改善。风蚀强度变化与植被覆盖度呈显著负相关。风蚀量变化率与风速≥6 m/s的日数呈负相关。土壤类型与变化强度的关系因0-1 cm粒径的桑迪、壤土和粘性土的地表分布而异。土壤类型以淋积土抗风蚀能力最强。研究结果对了解风蚀机理和变化过程具有一定的意义，可为内蒙古风蚀防治提供科学依据。
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 × 104km2. 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.