渭河宝鸡段生态需水综合评估  

Comprehensive Evaluation of Ecological Water Requirement of Baoji Reach of Weihe River

作　　者：洪娟[1,2] 甘卓亭[1] 张掌权[1] 周旗[1] 张盼峰[1,2] 刘惠清[2] 

机构地区：[1]宝鸡文理学院陕西省灾害监测与机理模拟重点实验室,陕西宝鸡721013 [2]东北师范大学地理科学学院,吉林长春130024

出　　处：《人民黄河》2014年第5期52-55,59,共5页Yellow River

基　　金：陕西省水利科技计划项目(2012-223);陕西省教育厅自然科学专项(2010JK402)

摘　　要：基于渭河宝鸡段林家村站和魏家堡站的观测资料,分别采用Tennant改进法、建设项目水资源论证导则代表年法(IGAWDU法)和二元水循环法计算渭河宝鸡段的生态需水,结果表明:①Tennant改进法计算4—6月、7—10月和11月—翌年3月三个时段生态需水最低标准分别是8.8、17.1、6.4 m3/s;②IGAWDU法计算平均年生态需水(IGAWDUM)为22.8 m3/s,丰水年、平水年、枯水年和特枯年4种典型年的生态需水(IGAWDU-T)分别为28.5、22.9、16.1、10.2m3/s;③二元水循环下的生态需水比例Ea=46.4%,污径比bw=0.29,表明渭河宝鸡段水量和水质均不达标。Based on historical observation data and recent experimental data of Linjiacun Hydrologic Station and Weijiabu Hydrologic Station,this paper calculated the ecological water requirements of Baoji reach of the Weihe River by using the improved Tennant method,the representative year method based on guidelines for assessment of water-draw and utilization in construction projects（IGAWDU）and the dualistic water cycle method in-dividually. The results show that：a）with the improved Tennant method,the minimum standards of ecological water requirements at the three peri-ods of April to June,July to October and November to the next March are 8. 8 m3/s,17. 1 m3/s and 6. 4 m3/s,respectively;b）with the method of IGAWDU,the average annual ecological water requirement（IGAWDU-M）is 22. 8 m3/s;the ecological water requirements of the high flow year,the normal year,the low flow year and the special dry year are 28. 5 m3/s,22. 9 m3/s,16. 1 m3/s and 10. 2 m3/s,respectively;c）with the dualistic water cycle method,the proportion of ecological water requirement is 46. 4% and the dilution ratio is 0. 29,which shows that neither water quantity nor quality can’t achieve the standard.

关 键 词：生态需水 Tennant改进法 IGAWDU法 二元水循环评价法 渭河宝鸡段 

分 类 号：X171.1[环境科学与工程—环境科学]