湖泊科学2024，Vol.36Issue(5)：1516-1524,9.DOI:10.18307/2024.0541
湖泊与河流水文连通量化计算模型及其应用
The quantitative model and its applications for the hydrological connectivity between lakes and rivers
摘要
Abstract
The quantitative analysis of hydrological connectivity between lakes and river systems serves as a fundamental guide for the conservation and management,and it represents a current focal point in the research on the ecological restoration of rivers and lakes.This paper introduces a quantitative calculation model for assessing the hydrological connectivity between lakes and rivers.The model requires minimal empirical or hydraulic simulation data for validation,enabling the quantification of hydrological con-nectivity in single or multiple connecting channels between rivers and lakes.Water level and its change rate are crucial parameters.The change rate of water level is linearly related to the intensity of water exchange,while the water level is positively correlated with the rate of increase.The proposed empirical formula for water exchange flow can effectively estimate the exchange flow between lakes and the Yangtze River.Under equivalent water levels and rates of water level changes,the efficiency of outflow from lakes to the Yangtze River exceeds that of inflow from the Yangtze River to lakes.The peak value of hydrological connectivity generally oc-curs at points of variation within the overall rising or falling range.Hydrological connectivity can be effectively increased by adjus-ting the process of water level rise or decline,which can guide ecological scheduling aimed at improving the aquatic ecosystem in lakes.关键词
水文连通/水体交换/水位变化率/量化模型/生态修复Key words
Hydrological connectivity/river-lake water exchange/rate of water level change/quantitative model/ecological resto-ration引用本文复制引用
刘小光,姚仕明,柴朝晖,朱孔贤..湖泊与河流水文连通量化计算模型及其应用[J].湖泊科学,2024,36(5):1516-1524,9.基金项目
国家自然科学基金项目(12302508,52320105006)和三峡后续工作项目(CKSG2023207/HL)联合资助. （12302508,52320105006）
