摘要
随着越来越多水利工程的兴建,河岸两侧水位消落带的生态问题日趋严重,引发国内外学者的关注。三峡大坝作为中国最大的水利工程,其水位调度极大地改变了长江原本自然的水位节律,在长江两岸形成了垂直落差达30 m的消落带,水位的梯度变化对消落带原有植被群落及生境造成了巨大冲击,生态环境问题突显。以重庆市南岸区消落带综合治理工程作为研究案例,剖析其水位梯度变化及各梯度下的现状植被类型,分析消落带水位波动情况下植被景观修复的原则,最终基于水位梯度变化提出消落带植被景观修复的三大策略:(1)划定不同水位梯度下植被功能区;(2)选择不同水位梯度下适生植被;(3)明确各功能区中植物配置模式。以期通过项目的生态修复和植被景观营造经验梳理,为消落带城市段植被的修复与景观治理提供借鉴和参考。
With the construction of numbers of water conservancy projects,the water level decline zone's ecological problems are becoming more and more dangerous,which arouses the concern of scholars in China and the international worldwide.As China's largest water conservancy project,the Three Gorges Dam has dramatically changed the Yangtze River's normal water level rhythm,forming a vertical drop of up to 30 m on both sides of the Yangtze River.The gradient change of water level has a significant impact on the original vegetation communities and habitats in the water-level-fluctuation zone,which companied the ecological environment problems.Research on the water-levelfluctuation zone's comprehensive management project in the Nanan District of Chongqing analyzes the change of water level gradient and the current vegetation type belonging to each water level.Meanwhile,it explains the principle of vegetation landscape restoration under the water-level-fluctuation zone.Finally,it put forward three strategies for the recovery of vegetation landscape in the fluctuation area based on the change of water level gradient,delineating the functional vegetation area under different water level gradient.To provide a reference for the restoration landscape management of vegetation in mountain cities through the ecological restoration of the project and the experience of vegetation creation.
作者
翟文雅
伊若辰
黎子豪
王江萍
ZHAI Wenya;YI Ruochen;LI Zihao;WANG Jiangping
出处
《园林》
2020年第8期56-60,共5页
Landscape Architecture Academic Journal
关键词
三峡库区
消落区
植物景观营造
南岸区
Three Gorges reservoir area
water-level-fluctuating zone
planting design
Nanan District
