金沙江干热河谷库区消落带植被恢复研究: 进展与展望

Progress and Perspective of Vegetation Restoration in Water-level-fluctuating Zone of Dry-hot Valley Reservoirs in Jinsha River

金沙江干热河谷是我国重要的水利水电开发区。该区域水电站水库建成运行后将产生大面积库区消落带,严重威胁当地生态环境。本文从金沙江干热河谷水电站库区消落带植被现状、物种筛选、植物生理生态响应、植被恢复模式与技术、恢复生态效益评价等方面概括总结了该区域植被恢复研究进展与现状。针对金沙江干热河谷水电站库区消落带现有植被恢复研究实践不足的现状,提出该区域植被恢复宜根据地形地貌,结合生物技术和工程技术,综合利用多种生活型植物的植被恢复思路,指出金沙江干热河谷水电站库区消落带植被恢复未来研究重点,包括实践与示范、生态系统长期动态监测和管理政策研究等方向。

The dry-hot valley of Jinsha River is an important water conservancy and hydropower development zone,where large wa⁃ter-level-fluctuating areas are generated during the operation of hydropower stations,and local ecological environment is seriously influenced.This paper reviews vegetation restoration in the riparian zone in the aspects of species selection,physiological and eco⁃logical responses,techniques and evaluation of eco-efficiency,and presents the vegetation restoration schemes in the zone by com⁃bining biotechnology and engineering technology with a variety of living plants according to the topography.It is suggested that more attention in the future should be paid to some key issues,including practice and demonstration,long-term dynamic monitor⁃ing of ecosystems and management policies in the riparian zone.