基于关键物种繁殖的汉江中游生态需水量计算方法  

Calculation Approach of Ecological Water Demand Based on Breeding of Critical Species in the Middle Reaches of Hanjiang River

作　　者：孙义[1] 邵东国[1] 顾文权[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072

出　　处：《南水北调与水利科技》2008年第3期97-100,共4页South-to-North Water Transfers and Water Science & Technology

基　　金：国家重点基础研究发展计划项目"973计划"资助项目(2003CB415206);湖北省自然科学基金计划重大项目(2007ABD007);湖北省水利重点科研项目(Hbshlkj2007k004)

摘　　要：针对汉江中游的关键物种"四大家鱼"产卵量显著减少以致影响生态系统功能的问题,综合运用水文学、水力学和生态学理论和方法,提出维持关键物种繁殖的生态需水量计算方法,主要包括确定关键物种、关键生态水文特征量及利用实测断面资料和多年实测水文资料计算适宜生态需水量三部分。该方法应用于汉江中游三个水文站,得出能满足"四大家鱼"繁殖需要的适宜生态需水量阈值,对南水北调中线工程实施后丹江口水库的合理调控与水资源科学配置具有一定参考价值。Considering the reduction of egg amount of the critical species （four domestic carps） in the middle reaches of Hanjiang River and its influence on the ecosystem, a new method for integrating the hydrology, hydraulics and ecology is put forward, which includes choosing critical species,crucial eco-hydrological variables and calculating the medium ecological water requirement by cross-section data and historical hydrological data at the river station. By applying this to three hydrological station located at the middle reaches of Hanjiang River, we got satisfying ecological water requirement for spawning of four major Chinese carps. The results has a certain reference value for proper water resources allocation and the reasonable control of the Danjiangkou reservoir in the middle reaches of Hanjiang river when South-to-North Water Transfer Project is finished.

关 键 词：生态需水 汉江中游 四大家鱼 产卵 

分 类 号：X171.1[环境科学与工程—环境科学]