文章基本信息

标题：Rehabilitation of an Incised Stream Using Plant Materials: the Dominance of Geomorphic Processes
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作者：F. Douglas Shields ; S. Reza Pezeshki ; Glen V. Wilson 等
期刊名称：Ecology and Society
印刷版ISSN：1708-3087
电子版ISSN：1708-3087
出版年度：2008
卷号：13
期号：2
出版社：The Resilience Alliance
摘要：The restoration of potentially species-rich stream ecosystems in physically unstable environments is challenging, and few attempts have been evaluated scientifically. Restoration approaches that involve living and dead native vegetation are attractive economically and from an ecological standpoint. A 2-km reach of an incised, sand-bed stream in northern Mississippi was treated with large wood structures and willow plantings to trigger responses that would result in increasing similarity with a lightly degraded reference stream. Experimental approaches for stream bank and gully stabilization were also examined. Although the project was initially successful in producing improved aquatic habitat, after 4 yr it had failed to effectively address issues related to flashy watershed hydrology and physical instability manifest by erosion and sedimentation. The success of ecosystem rehabilitation was thus governed by landscape-scale hydrological and geomorphological processes.
关键词：biotechnical stabilization; erosion; fish community structure; gullies; large wood; physical aquatic habitat; stream restoration; willows