| 刘树锋,陈记臣,关 帅.基于SWAT模型的无资料地区径流模拟及生态流量计算
——以杨溪河为例[J].江西水利科技,2019,(5): |
| 基于SWAT模型的无资料地区径流模拟及生态流量计算
——以杨溪河为例 |
| Runoff simulation of ungauged basin base on SWAT model and ecological flow calculation——a case study of Yangxi river |
| |
| DOI： |
| 中文关键词: SWAT模型 Tennant法 生态流量 杨溪河 |
| 英文关键词: SWAT model Tennant method Ecological flow Yangxi river |
| 基金项目: |
|
| 摘要点击次数: 443 |
| 全文下载次数: 623 |
| 中文摘要: |
| 利用SWAT（Soil and Water Assessment Tool）模型对武江流域2008～2013年的月径流量进行模拟，并根据犁市（二）站的实测径流资料对模型参数进行率定和验证；以武江支流杨溪河上的横溪、钓鱼台与银溪水电站3座梯级电站坝址为流域出口模拟得到其径流量，并以此为依据运用Tennant法计算各控制断面的生态流量.结果表明：SWAT模型对武江流域的径流模拟整体适应性较好，犁市（二）站率定期月径流模拟值和实测值的R2和NS分别为0.77和0.91，验证期的R2和NS分别为0.75和0.92；杨溪河上的横溪、钓鱼台和银溪3座水电站坝址处的多年平均流量分别为10.2m3/s、11.7m3/s和12.0m3/s；根据模拟径流量和Tennant法，计算得到横溪水电站的最小、适中和最佳生态流量分别为1.02m3/s、3.37m3/s和5.40m3/s；钓鱼台水电站的最小、适中和最佳生态流量分别为1.17m3/s、3.82m3/s和6.15m3/s；银溪水电站的最小、适中和最佳生态流量分别为1.20m3/s、3.91m3/s和6.31m3/s. |
| 英文摘要: |
| The Soil and Water Assessment Tool（SWAT）model was used to simulate the monthly runoff of Wujiang watershed from 2008 to 2013.The observed runoff data of Lishi（2） station was used to calibrate and validate the model parameters.The runoff of Hengxi， Diaoyutai and Yinxi hydropower stations on Yangxi river， a tributary of Wujiang watershed，was simulated by taking the dam sites of these three cascade hydropower stations as the outlets of the basin.And the ecological flow of these three control sections was calculated by Tennant method according to the simulation results.The results showed： 1） SWAT model had good adaptability to runoff simulation in Wujiang watershed.The coefficient of determination （R2） and Nash-Suttcliffe coefficient（NS） of monthly runoff between simulated values and observed values of Lishi（2）station were 0.77 and 0.91 respectively in calibration period，while R2and NS were 0.75 and 0.92 respectively in validation period.2） According to the runoff simulation results， the average annual inflow at the dam sites of Hengxi，Diaoyutai and Yinxi hydropower stations on Yangxi river were 10.2m3/s，11.7m3/s and 12.0m3/s，respectively.3）According to the runoff simulation results and Tennant method，the minimum，moderate and optimum ecological flows of Hengxi hydropower station were 1.02m3/s，3.37m3/s and 5.40m3/s，respectively.The minimum，moderate and optimum ecological flows of Diaoyutai hydropower station were 1.17m3/s，3.82m3/s and 6.15m3/s，respectively.The minimum， moderate and optimum ecological flows of Yinxi hydropower station were 1.20m3/s，3.91m3/s and 6.31m3/s，respectively. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
