“中国南方喀斯特”荔波世界自然遗产地水土流失现状与驱动力分析

荔波世界自然遗产地有着不同强度级别的水土流失现象,局部区域还伴随石漠化的发生.基于GIS与遥感技术,对遗产地内水土流失现状进行了遥感调查,分析了其空间分布与特点,并对其驱动力进行了探讨.结果认为,遗产地主要受生态环境、成土物质与速度、土壤流失难易、环境异质件及人地矛盾关系的历史等因素控制.该研究为荔波遗产地进行水土流失综合防治,合理利用土地资源,完善产业结构调整等方面提供依据,有助于世界自然遗产地生态环境的保护与可持续发展.

Soil Erosion and Its Driving Forces in Libo of the Southern China Karst

Soil erosion in the Libo World Natural Heritage has different strength classes and partly accompanies rocky desertification.Based on GIS and RS technologies,the article analyzes the spatial distribution and features of soil erosion and probes its driving forces.The area is mainly controlled by factors like ecological environment,soil materials,soil erodibility,environmental heterogeneity,and the historical relationship between human and land.The study provides a reference basis for integrated soil loss cont...