(1.大连理工大学水利工程学院,辽宁 大连 116024;2.广西壮族自治区梧州水利电力设计院,广西 梧州 543002;3.河南省地质矿产勘查开发局第一地质环境调查院,河南 郑州 471023)
(1.School of Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China;2.Water Conservancy and Electric Power Design Institute of Wuzhou, Guangxi Zhuang Autonomous Region, Wuzhou 543002, China;3.No.1 Institute of Geological Environment Investigation Institute, Bureau of Geology and Mineral Exploration and Development of Henan Province, Zhengzhou 471023, China)
Aiming at the ecological improvement needs of inflow-water-level-fluctuating zone (IWLFZ) of Biliuhe Reservoir, the treatment technology of using submerged dam to raise the phreatic water level of the main river and the beach land and then improve the beach vegetation conditions was proposed. By comparing the vegetation status on the beach land before and after the construction of the submerged dam, the influence of the submerged dam on the vegetation was analyzed. The results showed that after the construction of the submerged dam, the dominant species change from xerophytes to hygrophytes. In June and July 2020, the average vegetation coverage of the study area increased by 8.23% and 20.94% compared with the same period in 2019 before the construction of the submerged dam. The submerged dam can promote the vegetation coverage on beach land of IWLFZ during the dry period, and the submerged dam is an effective engineering measure to the ecological improvement of IWLFZ.
许士国,苏广宇,谢楚依,等.碧流河水库入流消落区生态改善的潜坝技术及效应[J].水资源保护,2022,38(5):26-31.(XU Shiguo, SU Guangyu, XIE Chuyi, et al. Submerged dam technology and its effect of ecological improvement in inflow-water-level-fluctuating zone of Biliuhe Reservoir[J]. Water Resources Protection,2022,38(5):26-31.(in Chinese))复制