人民长江2026，Vol.57Issue(2)：80-88,9.DOI:10.16232/j.cnki.1001-4179.2026.02.010
干热河谷库区消落带植被恢复研究
Research on vegetation restoration of water-level-fluctuating zone in reservoirs in dry-hot valleys
摘要
Abstract
Plant growth in the water-level-fluctuating zone of dry-hot valley reservoir is subject to periodic water flooding and high temperature,and regional vegetation recovery is quite difficult.To solve this problem,vegetation restoration of the water-level-fluctuating zone in the Baihetan Reservoir located in Jinsha River was conducted.We selected suitable plant species for vegetation restoration through hydrological analysis and field surveys,and proposed geogrid engineering measures and elevation-based plant arrangement.The application and effectiveness of vegetation restoration were analyzed by systematically investigating survival and growth of planted plants in experimental site.The results showed that vegetation restoration in the water-level-fluc-tuating zone of this dry-hot valley reservoir was recommended to allocate native plants such as Leucaena leucocephala,Jatropha curcas,Morus alba,Canna indica,Cynodon dactylon,Xanthium sibiricum and Pennisetum sinese in the upper layer,arrange flood-tolerant plants such as Salix hybrid,Pterocarya stenoptera,Betula nigra,Cornus quinquenervis,Salix variegata and Cynodon dac-tylon in the middle layer,and prioritize flood-tolerant herbaceous plants such as Xanthium sibiricum and Cynodon dactylon in the lower layer.Saplings exceeding 5 cm in diameter at breast height were suitable for vegetation restoration.Plants in experimental ar-ea adopted different growth strategies to acclimate to the arid and hot environment,exhibiting distinct morphological adaptations such as new branches sprouting from the lower trunk,dieback at the upper trunk,basal budding,or many root sprouts.Geogrid en-gineering measures could create near-natural habitat and conserve water and soil effectively in middle and lower layer of the wa-ter-level-fluctuating zone in dry-hot valley.These results can provide practical reference for the ecological restoration in fluc-tuating zone of the dry-hot valley reservoirs.关键词
消落带/植被恢复/白鹤滩水库/金沙江干热河谷Key words
water-level-fluctuating zone/vegetation restoration/Baihetan Reservoir/dry-hot valley in Jinsha River分类
资源环境引用本文复制引用
万丹,金可,卢阳,张乾柱,周火明,吴颐杭..干热河谷库区消落带植被恢复研究[J].人民长江,2026,57(2):80-88,9.基金项目
国家自然科学基金项目(42407108) （42407108）
湖北省水利科研项目(HBSLKY202405) （HBSLKY202405）
重庆水利科技项目(CQSLK-2022009) （CQSLK-2022009）
乌东德、白鹤滩水电站消落带修复试验项目(JG/19042B,JG/19043B) （JG/19042B,JG/19043B）
