the calculation methods are summarized and a temporal vary analysis method is recommended.
总结了已有的环境背景值确定方法及其优缺点，并提出在污染区可采用历时曲线法。
Daily flow hydrograph simulation using regional flow duration curves for ungauged region of Dongjiang basin;
利用区域流量历时曲线模拟东江流域无资料地区的日径流过程
Adopting synthetic duration curve method and based on the hydrological data of Year 1981-2002, the design water level of part hydrographic stations at the middle and lower reach of the Yangtze River at different guaranteed rates were calculated.
用综合历时曲线法,利用1981—2002年水文资料,计算了长江中下游部分水文站不同保证率时的设计水位,结合影响枯水位变化的因素,比较分析了保证率为98%的设计水位计算结果与上世纪70年代和80年代计算值的差别及其变化过程。
By these indicators LDCs,the water quality of Erhai Mijuhe river watershed influences on the use of itself and on Erhai lake of Mijuhe river s downstream are respectively analysed.
针对负荷历时曲线(LDC)在水质分析中存在评判依据无法适应水质限制要求,提出了基于急性和慢性水质标准时采用LDC对水质进行评判的方法。
Load duration curve method is firstly adopted for analyzing many hydrology stations of Gan river Basin since 2001 to 2004(select one of hydrology stations as an example)in this paper,gaining very valuable data which are relation to many pollutants of controlling monitored section total loading and assimilating capacity,providing scientific reliance for reducing pollutants.
国内首次利用污染负荷历时曲线法对赣江流域2001年~2004年多个水文站进行分析(选取其中一个水文站进行举例分析),获得非常有价值的多种污染物的控制断面总量与允许纳污量的关系数据,为实施削减污染物提供了科学依据。