摘要
从河流景观生态学的角度,探讨了三峡工程对荆江河段的生态效用。在概述河流景观生态学新近重要认识的基础上,分析并指出了三峡工程作为关键人文驱动因子,对荆江河段核心景观要素和主导生态过程的驱动作用;讨论了三峡工程水沙调节下,荆江河段多过程、多要素的耦合响应关系,以致在景观结构、景观格局和景观功能上,重建与新水沙条件相适应的景观生态系统;从功能过程区划、核心景观要素保护、维护自然水文连接度和人类活动生态学原则等4个方面,并提出了荆江河段景观生态维护的可持续策略。
From the view of fluvial landscape ecology,ecologic influences of Three Gorges Project on Jingjiang Reach were discussed.Recent knowledge in fluvial landscape ecology was first overviewed. The driving effects of Three Gorges Project which was pointed out to be a key human driving factor on the core landscape elements and dominant ecological processes in Jingjiang River were then analyzed.Thereafter,coupling response of the multi-elements and multi-processes of Jingjiang Reach under the water and sediment regulation of Three Gorges Project was discussed.Finally, sustainable strategies for the protection of landscape ecology in Jingjiang Reach were proposed from four aspects,that is,regionalization of functional process zones,core landscape elements protection, maintenance of natural hydrological connectivity,and establishment of ecologic principles in human activities.
出处
《长江大学学报（自科版）（中旬）》
CAS
2012年第3期15-19,23,共6页
Journal of Yangtze University(Nature Science Edition)
基金
国家自然基金项目(No.31170400)
长江大学博士启动动基金(CJDX-D2010196)
关键词
三峡工程
荆江河段
生态响应
河流景观生态学
Three Gorges Project
Jingjiang Reach
ecologic effects
fluvial landscape ecology
