亚热带喀斯特山区的生态系统特征和恢复途径

亚热带喀斯特山区主要分布于中国西南和华南，其地貌以寒武系、二叠系和碳酸盐岩与碎屑岩夹层组成的峰丛洼地和喀斯特谷地为主^1]。由于生态环境及其脆弱，加之人类活动干扰严重，这使得该区长期以来资源难以合理开发利用，环境日益恶化。随着我国西部大开发战略的实施，环境的恶化，经济的落后和不合理的资源开发利用等问题已引起了地理、岩溶、生态、环境等学术界的高度重视。生态系统的恢复、重建，农业、林业和其他产业的合理规划已成为刻不容缓的问题。

Features and Rehabilitating Ways for Sub-tropic Karst Mountain Ecosystem

The geomorphology in subtropical karst mountain distributed in the South and Southwest China, is dominated by peak cluster-depression and karst valley mainly formed by the Cambrian, Permian and Tertiary carbonate rocks associated with some Paleozoic and Mesozoic clastic rocks. With extremely weak eco-environ-ment that is becoming worse and worse under seriously destructive human activities, it made itself a terrain quite difficult for the exploitation of natural resources ever since. Along with the Program of West China Exploration, problems on environmental deterioration and underdeveloped economics as well as improper resources' exploitation, etc. have been got closer and closer attention to in academic circles of geography, karstology, ecology and environmental science. Works on the rehabilitation for subtropical karst mountain ecosystem and on the reasonable programming for agriculture and forestry as well as other industries brook no delay at the movement. So, in this paper, some ideas are put forth as a reference.