GIS-Based Analysis on Evolution and Driving Forces of Land Desertification in Fengning County of Hebei Province
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    Abstract:

    [Objective] To analyze the evolution and driving forces of land desertification in order to provide technical references for land desertification controlling and the rational exploitation and utilization of land resources in the Fengning County, Hebei Province.[Methods] Through remotely sensed imagery interpretation based on remote sensing and GIS, we analyzed the temporal and spatial evolution of regional land desertification and its driving factors in the Fengning County in 2009 and 2014.[Results] The desertification land showed an obviously regional distribution, which was mainly distributed in the fixed sandy land of the midwest areas. Over the past 5 years, the total area of desertification land generally decreased despite the moderate desertification area increased, in which the area of mild desertification decreased by 560.9 hm2, the area of severe desertification decreased by 1 872.6 hm2, and the total area of desertification land decreased by 809.2 hm2. The plateau was easier to form desertification than the lower hilly zone, the degree of desertification was more severe in the arid zone than that of semiarid zone.[Conclusion] Based on local landscapes and environmental conditions, developing and using land resources rationally, increasing forest areas, will effectively reduce the land desertification.

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贾双竹,彭博,范慧涛,宣立辉,郭宇嘉,谷建才.基于GIS的河北省丰宁县土地沙化演变及驱动力分析[J].水土保持通报英文版,2018,38(3):200-205

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History
  • Received:October 09,2017
  • Revised:January 06,2018
  • Adopted:
  • Online: July 06,2018
  • Published: