摘要
以漓江桂林、阳朔水文站为研究对象,根据年径流资料,将一年分为丰、平、枯3个时期,采用改进的年内展布法,分别计算各个时期90%保证率下的多年各月均值流量与该时段下的多年各月均值流量的同期均值比,结合多年各月平均流量计算出生态流量,最后采用Tennant法对改进前后的年内展布法计算的生态流量进行评价。结果显示,改进的年内展布法计算得到的生态流量过程更符合雨源型河流特征,且在一般用水期更适合河流用水需求。
The ecological flow of Lijiang River was calculated based on annual runoff data at Guilin and Yangshuo hydrological stations.A year was divided into high water period,flat water period and low water period.The ratio of the monthly mean flow of each period under the 90%guarantee rate to the multi-year monthly mean flow in the same period was calculated,and the ecological flow was calculated in association with the monthly mean flow.Furthermore,the ecological flow calculated by the annual distribution method before and after modification was evaluated by using the Tennant method.The results showed that the ecological flow calculated by improved annual distribution method is more in line with the characteristics of rain-source rivers,and more suitable for river water demand in normal water use period.
作者
梁荣军
王越隆
陈胜团
陈俊鸿
张帅普
Liang Rongjun;Wang Yuelong;Chen Shengtuan;Chen Junhong;Zhang Shuaipu(College of Information Science and Engineering,Guilin University of Technology,Guilin 541004,China;Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology,Guilin University of Technology,Guilin 541004,China)
出处
《长江技术经济》
2022年第3期44-49,共6页
Technology and Economy of Changjiang
基金
桂林理工大学大学生创新创业计划项目(202110596030)
广西科技基地和人才专项(桂科AD21220106)
桂林理工大学博士科研启动基金(GUTQDJJ2020083)。
关键词
生态流量
改进年内展布法
TENNANT法
月径流
漓江流域
ecological flow
improved annual distribution method
Tennant method
monthly runoff
Lijiang River basin
