森林经营对三峡库区生态环境的影响研究

STUDY ON IMPACT OF FOREST MANAGEMENT ON ECO ENVIRONMENT IN THE THREE GORGE RESERVOIR AREA

三峡库区的山地生态系统具先天脆弱性，人类活动对生态环境的影响强烈，农业生态系统抗逆力差，森林景观破碎化。作为陆地生态系统的主体，持续经营的森林成为维持区域生态平衡的关键因素。开展森林经营对库区生态环境的影响研究，必须从持续发展思想出发，以景观生态学理论为指导原则，采用生态规划的方法，借助遥感（ＲＳ）、全球定位系统（ＧＰＳ）、地理信息系统（ＧＩＳ）技术。在研究内容的选择上，森林经营的指导原则、森林经营对生态环境质量影响的评价与监测、应集中于森林分类经营的技术体系与管理模式三个方面。

The mountain ecosystem in the Three Gorge Reservoir area is of inherent fragility and human activities have drastically changed the local eco environment.Besides,the resilience of agricultural ecosystem to stress has been weakened and the forest landscape has been fragmented,Thus,as the main component of land ecosystem,a sustainable forest has become the key factor in keeping regional ecological balance.The study of impact of forest management on eco-environment in the reservoir area should be carried out according to the principles of landscape ecology,through the process of ecological planning,with the technique of RS,GPS and GIS.As to the content of the study,the guidelines of the effect of forest management,the evaluation and monitoring of forest management on regional eco environment,the technique system and management model of classified forest should be included.