乌东德库区消落带生态修复植物遴选与配置

干热河谷库区消落带生态修复关键技术难点在于当消落带植被受到长时间淹水与干旱交替双重胁迫时,如何遴选生态修复两栖植物.通过对乌东德库区消落带生态修复试验段淹没前植被调查、溪洛渡库区和三峡库区典型库岸消落带现存植物种群调查以及查阅三峡库区消落带植被自然演替和植被修复相关文献,结合乌东德水电站水位调度节律和库区干热河谷气候条...

Plant Screening and Vegetation Arrangement for Ecological Restoration in Water-level-fluctuating Zone of Wudongde Reservoir

The key technical difficulty of ecological restoration in dry-hot valley reservoirs lies in screening plants with strong flooding and drought tolerance. We present the potential tendency of plant community succession in water-level-fluctuating zone of Wudongde reservoir area based on vegetation investigations in Wudongde, Xiluodu and Three Gorges reservoir areas as well as related researches, climatic conditions and water fluctuation rhythm. In consideration of natural and artificial restoration, native and exotic plants, we selected the plants for ecological restoration in water-level fluctuating zone of Wudongde reservoir area, and propose the vegetation arrangement along altitude gradient. The middle and lower altitudes of water-level fluctuating zone are equipped with herbs inclusive of Cynodon dactylon, Cyperus rotundus, Hemarthria altissima, Abutilon theophrasti, Setaria glauca and Digitaria sanguinalis, and the upper is arranged with trees including Albizia julibrissin, Taxodium‘Zhongshanshan', Betula nigra, Morus alba and Salix variegates, and a quantity of herbaceous plants.