长江中下游钢丝网石笼护坡生态恢复效果评价  

Evaluation of ecological restoration effect of steel wire mesh stone cage revetment in middle and lower reaches of the Yangtze River

作　　者：范玉洁 杨中华[1] 邹明哲 李明 张志永 李达[1] 刘建华[1] 刘奇 FAN Yu-jie;YANG Zhong-hua;ZOU Ming-zhe;LI Ming;ZHANG Zhi-yong;LI Da;LIU Jian-hua;LIU Qi(Wuhan University,Wuhan 430071,China;Changjiang Waterway Institute of Planning and Design,Wuhan 430040,China;Institute of Hydroecology,Ministry of Water Resources,Chinese Academy of Sciences,Wuhan 430079,China)

机构地区：[1]武汉大学,湖北武汉430071 [2]长江航道规划设计研究院,湖北武汉430040 [3]水利部中科院水工程生态研究所,湖北武汉430079

出　　处：《水运工程》2021年第1期129-135,共7页Port & Waterway Engineering

基　　金：国家自然科学基金项目(51879199);湖北省技术创新专项重大项目(2019ACA154)。

摘　　要：近年来长江中下游航道整治实施一系列钢丝网石笼生态护坡工程,但是缺少对这些护坡建成后生态恢复效果的跟踪调查评价。基于2019年汛前和汛后对6个钢丝网石笼护坡植被和基质的调查,开展植被年内以及年际演替分析,并结合水文数据、基质特征及现场观测情况,筛选4个植被特征因子以及17个环境影响因子做相关性分析。结果表明,经过恢复,护坡区由完工时播种的较为单一的植被演替为以草本植物为主的多物种群落,护坡区现场生态恢复效果良好;护坡建成时间、基质中黏土、粉砂、砂石含量以及淹没历时是影响护坡区植被演替的主要影响因子。In recent years,a series of steel wire mesh stone cage ecological revetment projects are carried out in the middle and lower reaches of the Yangtze River,but there is no follow-up investigation and evaluation on the ecological restoration effect after the completion of these projects.Based on the investigation of vegetation and matrix of six steel wire mesh stone cage revetments before and after the flood season in 2019,we analyze the annual and interannual successions of vegetation.Combined with the hydrologic data,matrix characteristics and field observation,we screen four vegetation characteristic factors and seventeen environmental impact factors for correlation analysis.The results show that after restoration,the relatively single vegetation succession seeded at the completion of the revetment protection area is replaced by a multi-species community dominated by herbage plants,and the ecological restoration effect of the revetment protection site is good.The time of revetment,the percentage of clay,silt and sand in the matrix and the duration of inundation are the main factors affecting the succession of vegetation in the engineering area.

关 键 词：钢丝网石笼护坡 植物群落 生态恢复 相关性分析 

分 类 号：TV861[水利工程—水利水电工程] U656.3[交通运输工程—港口、海岸及近海工程]