Wind erosion hazard assessment of the Mongolian Plateau using FCM and GIS techniques |
| |
Authors: | Huading Shi Qingxian Gao Yongqing Qi Jiyuan Liu Yunfeng Hu |
| |
Institution: | (1) Chinese Research Academy of Environmental Science, 8 Dayangfang, BeiYuan Road, 100012 Beijing, China;(2) Institute of Geographical Science and Natural Resource Research, Beijing, China |
| |
Abstract: | The most serious environmental problems of the Mongolian Plateau are land degradation and sand storms caused by wind erosion,
but the evaluation of wind erosion at regional scales has been a difficult process in wind erosion research. In this study,
fuzzy c-means clustering (FCM) was used to assess the spatial pattern of wind erosion hazard on the Mongolian Plateau. By fuzzy clustering
four main wind erosion factors (vegetation cover, average degree of land surface relief, degree of soil dryness and intensity
of wind energy), wind erosion hazard was classified into six grades. Results show that FCM can effectively integrate related
information between wind erosion and environmental factors, which provides the basis for predictive mapping of wind erosion
hazard. Spatial patterns of wind erosion hazard indicate a gradual trend of increasing hazard in the Mongolian Plateau from
east to west. Similar patterns were also found in NDVI and soil dryness, indicating that soil moisture and vegetation are
the most important factors in the formation of wind erosion hazard. In addition, the distribution of different levels of wind
erosion hazard is basically consistent with the regional distribution of landscape vegetation types in the Mongolian Plateau. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|