CAJ | 학술논문

生态需水量的确定关系到河流生态恢复及地区经济与环境协调发展，是维系生态系统平衡的保障。为降低单一计算方法带来的误差，利用7Q10法、NGPRP法及Texas法等9种水文学方法对汉江中下游基本生态需水量进行了计算，并对其结果统一用蒙大拿法进行归类，得出基于蒙大拿法的合理生态需水量。同时，从众多生态需水概念中提出了表征生态需水动态特性的生径比概念，并用蒙大拿法、Texas法、逐月频率计算法、月保证率设定法及其改进法计算了汉江中下游汛期与非汛期的生径比。
생태수수량적학정관계도하류생태회복급지구경제여배경협조발전，시유계생태계통평형적보장。위강저단일계산방법대래적오차，이용7Q10법、NGPRP법급Texas법등9충수문학방법대한강중하유기본생태수수량진행료계산，병대기결과통일용몽대나법진행귀류，득출기우몽대나법적합리생태수수량。동시，종음다생태수수개념중제출료표정생태수수동태특성적생경비개념，병용몽대나법、Texas법、축월빈솔계산법、월보증솔설정법급기개진법계산료한강중하유신기여비신기적생경비。
The calculation of eco-water demand relates to the ecological restoration and coordinated development between re-gional economy and environment, and eco-water demand is also the guarantee of maintaining the balance of ecosystem. To re-duce the error by a single method, the paper uses nine kinds of hydrological methodologies such as 7Q10, NGPRP and Texas methods to compute the basic eco-water demands in the mid-lower reaches of Hanjiang River, and classifies the calculated re-sults with the Montana method to obtain rational eco-water demands based on the Montana method. Meanwhile, based on many concepts of eco-water demands, the paper presents a concept of REF ( the ratio of the eco-water demands to stream flow) , a parameter reflecting the dynamic nature of eco-water demands, and by Montana method, Texas method, monthly guaranteed fre-quency method and its improved method, the REF in flood season and non-flood season in the mid-lower reaches of Hanjiang River are calculated.