Based on the theory of complex adaptive system(CAS),the optimal allocation model of water resources in sewage irrigation areas was established,which provided new ideas and application value for the rational utilizatio...Based on the theory of complex adaptive system(CAS),the optimal allocation model of water resources in sewage irrigation areas was established,which provided new ideas and application value for the rational utilization of agricultural production and waste water resources.The results demonstrated that the difference of crop energy capture mainly depended on the development stage.Waste water with a certain concentration was able to promote crop growth,while excessive concentration inhibited crop growth.The correlation between water absorption rate and leaf area index was close(R=0.9498,p<0.01).The amount of bad seeds increased at a speed of 34.7·d^-1,when system irrigated randomly in the seedling stage,while it tended to remain stable at a speed of 0.3·d^-1 after plants entering the mature stage which impacted the total yields of crops.展开更多
水资源优化配置是均衡水资源与发展的关键措施,能够缓和水资源供需矛盾,促进经济和生态协调发展。通过借助水资源评价方法对海原县水资源开发利用状况进行分析,构建GWAS(General Water Allocation and Simulation Model)配置模型,并进...水资源优化配置是均衡水资源与发展的关键措施,能够缓和水资源供需矛盾,促进经济和生态协调发展。通过借助水资源评价方法对海原县水资源开发利用状况进行分析,构建GWAS(General Water Allocation and Simulation Model)配置模型,并进行规划年(2025年、2035年)海原县水资源优化配置研究,为海原县实现水资源、流域和区域经济社会与生态环境保护协调发展提供理论依据。配置结果显示,在75%的来水条件下规划年(2025年、2035年)可供水量分别达12 706万m^(3)和12 892万m^(3),不能满足用水量的全部配置,建议加强非常规水源的利用,合理配置引黄水和地下水资源,实现县域水资源的优化配置。展开更多
为缓解河北武安市水资源供需不平衡的突出矛盾,立足水资源精细化管理的需求,构建了武安市GWAS(general water allocation and simulation)模型,并开展规划年(2025年与2030年)不同情景下武安市各乡镇水资源优化配置研究。结果表明:2025年...为缓解河北武安市水资源供需不平衡的突出矛盾,立足水资源精细化管理的需求,构建了武安市GWAS(general water allocation and simulation)模型,并开展规划年(2025年与2030年)不同情景下武安市各乡镇水资源优化配置研究。结果表明:2025年和2030年,平水情景(P=50%)下模型优化配置水量基本可以满足各乡镇水量需求,枯水情景(P=75%)下各乡镇存在不同程度的缺水情况;全市普遍农业缺水,2025年平枯情景农业缺水率分别为6.45%和44.11%,2030年平枯情景农业缺水率分别为5.05%和42.47%;优化后的供水结构改善效果显著,地下水供水量占比在各规划年平枯情景下均有所下降。展开更多
基金Supported by the Science and Technology Research Project of the Ministry of Education(14YJCZH017)the Major State Basic Research Development Program of China(973 Program)(2017YFC0404503)+1 种基金Key Cultivation Project of Lingnan Normal University in 2019(LZ1903)Lingnan Normal University Special Talent Program(ZL2007)
文摘Based on the theory of complex adaptive system(CAS),the optimal allocation model of water resources in sewage irrigation areas was established,which provided new ideas and application value for the rational utilization of agricultural production and waste water resources.The results demonstrated that the difference of crop energy capture mainly depended on the development stage.Waste water with a certain concentration was able to promote crop growth,while excessive concentration inhibited crop growth.The correlation between water absorption rate and leaf area index was close(R=0.9498,p<0.01).The amount of bad seeds increased at a speed of 34.7·d^-1,when system irrigated randomly in the seedling stage,while it tended to remain stable at a speed of 0.3·d^-1 after plants entering the mature stage which impacted the total yields of crops.
文摘水资源优化配置是均衡水资源与发展的关键措施,能够缓和水资源供需矛盾,促进经济和生态协调发展。通过借助水资源评价方法对海原县水资源开发利用状况进行分析,构建GWAS(General Water Allocation and Simulation Model)配置模型,并进行规划年(2025年、2035年)海原县水资源优化配置研究,为海原县实现水资源、流域和区域经济社会与生态环境保护协调发展提供理论依据。配置结果显示,在75%的来水条件下规划年(2025年、2035年)可供水量分别达12 706万m^(3)和12 892万m^(3),不能满足用水量的全部配置,建议加强非常规水源的利用,合理配置引黄水和地下水资源,实现县域水资源的优化配置。
文摘为缓解河北武安市水资源供需不平衡的突出矛盾,立足水资源精细化管理的需求,构建了武安市GWAS(general water allocation and simulation)模型,并开展规划年(2025年与2030年)不同情景下武安市各乡镇水资源优化配置研究。结果表明:2025年和2030年,平水情景(P=50%)下模型优化配置水量基本可以满足各乡镇水量需求,枯水情景(P=75%)下各乡镇存在不同程度的缺水情况;全市普遍农业缺水,2025年平枯情景农业缺水率分别为6.45%和44.11%,2030年平枯情景农业缺水率分别为5.05%和42.47%;优化后的供水结构改善效果显著,地下水供水量占比在各规划年平枯情景下均有所下降。
