摘要
以宁夏银北灌区为实例,把土壤临界含盐量、地下水临界埋深和临界矿化度概念引入水资源管理中,建立了防治盐碱化的多目标决策模型,并利用约束法和模拟方法对不同水平年银北灌区的引、采、排水量进行优化计算。该模型实现了水资源优化配置对三大水盐指标,即地下水埋深、土壤含盐量和地下水矿化度的全面调控,可用于干旱、半干旱地区以防治土壤盐碱化为目的的灌排管理决策。
Taking the Yinbei irrigation district in Ningxia as a case study,a multi-object decision model for salinization prevention was proposed by introducing the concepts of critical soil salt content,critical depth of groundwater,and critical groundwater mineralization degree to the water resources management. The constraint method and simulation method were used to obtain the optimal compromise solution of the surface water diversion and groundwater withdrawal in different level years.This model can comprehensively control the three water-salt indicators,viz.depth of groundwater level,soil salinity,and groundwater mineralization by optimal allocation of water resources,so it can be used to the management and decision-making aimed at salinization prevention of irrigation and drainage system in arid and semi-arid regions.
出处
《系统工程理论与实践》
EI
CSSCI
CSCD
北大核心
2010年第6期1144-1152,共9页
Systems Engineering-Theory & Practice
基金
国家自然科学基金(40771097)
关键词
水资源
多目标决策模型
土壤盐碱化
地下水临界埋深
土壤临界含盐量
地下水临界矿化度
water resources
multi-object decision model
soil salinization
critical buried depth of groundwater
critical salt content
critical groundwater mineralization
