The safeguarding of ecological flow in rivers and lakes is an important measure to ensure the ecological security of river basins. Based on the principles of control section selection and the characteristics of the sections, the Xinqiao Sluice was determined as the main control section for the ecological flow protection of the Niutun River basin, with the lowest ecological water level as the indicator for ecological flow protection. The target values for the lowest ecological water level at the main control section of the Niutun River were calculated using the Qp method, biological spatial method, and the lowest average flow method of the driest month, respectively, and compared with the measured water levels over the past 40 years to analyze the feasibility of the targets. The results showed that the calculated values for the lowest ecological water level at the control section using the Qp method, biological spatial method, and the lowest average flow method of the driest month were 4.60, 4.50, and 4.43 m, respectively. Considering the calculation accuracy, satisfaction level, and the strict requirements for ecological flow protection, the final target for the lowest ecological water level in the basin was set at 4.60 m, with the monthly and ten-day guarantee levels reaching 99.6% and 99.3%, respectively. Based on this, management measures and early warning measures for ecological flow protection were proposed to provide a reference for ecological protection and ecological flow safeguarding in the basin.
QIAN Longjiao
,
WANG Yang
. Analysis of ecological flow guarantee for river channels based on hydrological methods[J]. Anhui Agricultural Science Bulletin, 2024
, 30(16)
: 62
-65
.
DOI: 10.16377/j.cnki.issn1007-7731.2024.16.015
[1] 钟华平,刘恒,耿雷华,等. 河道内生态需水估算方法及其评述[J]. 水科学进展,2006,17(3):430-434.
[2] 王中根,赵玲玲,陈庆伟,等. 关于生态流量的概念解析[J]. 中国水利,2020(15):29-32.
[3] 孙翀,王猛,张建永,等. 我国重要河湖生态流量保障现状及问题分析[J]. 水利规划与设计,2021(3):4-7,28.
[4] 吴浩云. 河湖幸福观指引下的太湖流域片生态流量保障实践与探索[J]. 中国水利,2020(15):59-61.
[5] 刘兆孝,王孟,李斐,等. 推进长江生态流量保障工作的思考与建议[J]. 中国水利,2022(9):42-44,51.
[6] 付小峰,庞兴红,韦翠珍. 淮河流域重要河湖生态流量保障现状与对策研究[J]. 中国水利,2022(7):67-70.
[7] 王志翔. 牛屯河综合治理方案与实施效果分析[J]. 江淮水利科技,2020(1):29-31.
[8] 陈楷,王立权,刘岩,等. 基于多种水文学法的密江河生态流量研究[J]. 水利科学与寒区工程,2022,5(6):79-84.
[9] 葛金金,彭文启,张汶海,等.确定河道内适宜生态流量的几种水文学方法:以沙颍河周口段为例[J]. 南水北调与水利科技,2019,17(2):75-80.
[10] 李扬,孙翀,刘涵希. 福建省域河流生态流量监管与控制目标核定[J]. 水资源保护,2020,36(2):92-96,104.
[11] 杨庆. 典型鱼类生存繁衍适宜水文条件与适应阈值实验研究[D]. 郑州:华北水利水电大学,2019.
[12] 郁丹英,贾利. 关于洪泽湖生态水位的探讨[J]. 水利规划与设计,2005(2):56-60.
[13] 吴浩云. 河湖幸福观指引下的太湖流域片生态流量保障实践与探索[J]. 中国水利,2020(15):59-61.
