缺水量 meaning in English
water deficit
water-discharge in time of drought
Examples
- At present the annual average shortage of water in river - basin reaches 6 - 8 ( 108m3 ) . considering the growth of population , urbanization and industrialization , the lack of water will continue in the coming 15 years , which will greatly influence the regional development
目前，河西内陆河流域年缺水量平均达6 ? ? 8亿立方米，考虑到人口增长、城市化、工业化推进等因素，未来15年河西地区水资源短缺问题将持续存在。 - Taking xinzhou city as the case , the paper analyzes the city ' s actual situation of water supply , available water sources and their amount , distribution and development . it also calculates the mid and long term needed water amount and insufficient water amount in the city . taking the natural , commercial and life material properties and environmental function of water sources into full consideration , taking the satisfaction of the needed amount of the city and the balance and the largest capacity of every water source as the prerequisite , the paper aims at the mid and long term water supply sources ( north water sources region , douluo water sources region , shuiquanwan water sources region ) and the lest spending on the investment and operation of the self - equipped wells ; through the determination of decision variables , a model of economic management for the city ' s water supply is established , witch carries out the mid and long te rm optimal operation of water supply for the city
本文以忻州市为例，分析了忻州市供水现状，可供水水源、水资源量、分布及开发利用情况，预测了中长期需水量和缺水量，充分考虑水资源的自然属性、生活资料属性、商品属性和环境因素功能，通过决策变量设置，在保证城市需水量、水资源平衡和各供水水源最大供水能力的前提下，以开采忻州市中长期供水水源(北水源地、豆罗水源地、水泉湾水源地)和自备井开采的投资和运行费用最低为目标，建立了城市供水水源优化调度经济管理模型，运用线性规划方法进行了城市中长期供水水源优化调配。 - ( 5 ) analysis on calculation results of guanzhong west irrigation areas . compared water shortage decreasing and irrigation guarantee ratio increasing with three different projects such as single irrigation area operation , discount project and change water supply sequence , especially for yang _ maowan and bao _ jixia ii irrigation areas
西部灌区采用三种方案进行对比分析，为单灌区调度、打折方案以及改变供水次序方案，并分别对比了三种方案中缺水量的减少和灌溉保证率的提高等，尤其针对缺水严重的羊毛湾灌区和宝鸡峡塬下灌区进行重点分析。 - The model combines simulation method and optimization method to regional water supply and utility system , analyzing long series water supply and demand system with the object of the annual maximum water supply , counting water shortage capacity and its distributing probability , describing water shortage risk with risk character indexes . 4 . when the water shortage risk is calculated , the input and output macro - economic model of water resource is employed to evaluate economic losses due to water shortage
该模型综合模拟方法和优化方法的优点，在对区域供用水系统进行模拟的同时，采用年最大供水量为目标函数对水资源系统进行长系列的供需分析，然后统计区域水资源系统的缺水量及其概率分布，同时用水资源系统的风险性能指标对水资源短缺风险进行描述。 - ( 4 ) building and resolving water resources stimulation model . based on analysis runoff data of 1974 - 2001 and using water data , adopting the minimum water shortage as object function , adopting delphi 6 . 0 to programme , gained distributing water and water shortage results
关中西部灌区采用1974年? 2001年的主要水源工程来水量资料，在分析资料的基础上，以缺水量最小建立目标函数，利用模拟方法计算各子系统的用水、配水情况，采用delphi6 . 0编制模拟调度程序，得出灌区联合调水后的缺水情况。