长沙市水资源优化配置研究
发布时间：2018-07-26 13:27
【摘要】：基于长沙市水资源现状,为平衡居民生活用水、经济生产用水和环境生态用水之间的关系,运用系统动力学方法,建立长沙市水资源—人口—经济—生态环境的耦合系统,模型模拟了现状延续型、经济发展新型、节水治污型和综合协调型四种发展模式,选取三产比值、第一产业年增长率、第二产业年增长率、第三产业年增长率、亩均用水量、万元工业增加值用水量、城市化率、水资源开发利用率、工业用水重复利用率、生活污水排放系数、污水处理率、中水回用率、人口增长率、工业污水排放系数以及城镇、农村人均用水量作为决策变量,选取GDP、人口数量、居民生活需水量、经济需水总量、供需压力作为主要评价指标。 结果表明：综合协调型模拟结果最佳,具有最强可持续发展能力,选取为最优方案；第一、二、三产业分别保持10%、12%、12%年增长率且节流治污情况与现状延续型保持一致的方案,供需压力将达到节流治污方案的两倍多；经济生产用水对水资源供需压力的影响远大于居民生活用水和环境生态用水；通过适当降低人均用水量来平衡因人口数量增长而增加的居民生活用水是可行的。
[Abstract]:Based on the present situation of water resources in Changsha City, in order to balance the relationship among household water consumption, economic production water use and environmental ecological water use, a coupling system of water resources, population, economy and ecological environment in Changsha is established by using the method of system dynamics. The model simulates four development models, namely, the continuation of current situation, the new type of economic development, the type of water-saving and pollution control and the type of comprehensive coordination. The ratio of three industries, the annual growth rate of the primary industry, the annual growth rate of the secondary industry, the annual growth rate of the tertiary industry, and the average water consumption per mu are selected. Ten thousand yuan of industrial added value water consumption, urbanization rate, utilization ratio of water resources development, reuse of industrial water, domestic sewage discharge coefficient, sewage treatment rate, reusing rate of reclaimed water, population growth rate, industrial sewage discharge coefficient and cities and towns, The per capita water consumption in rural areas is taken as the decision-making variable, and the main evaluation indexes are GDP, population, water demand of residents, total economic water demand and pressure of supply and demand. The results show that the integrated and coordinated simulation results are the best, with the strongest ability of sustainable development, and selected as the optimal scheme; the first, second, and third industries maintain 10 / 12 and 12 / 12 annual growth rates, respectively, and the current situation of reducing and controlling pollution is consistent with the continuation of the current situation. The pressure of supply and demand will be more than twice that of the scheme of reducing expenditure and controlling pollution, the influence of economic production water on the pressure of supply and demand of water resources is much greater than that of domestic water and ecological water of the environment. It is feasible to reduce the per capita water consumption to balance the increase of water consumption due to the increase of population.
【学位授予单位】：湖南农业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV213.4
[Abstract]:Based on the present situation of water resources in Changsha City, in order to balance the relationship among household water consumption, economic production water use and environmental ecological water use, a coupling system of water resources, population, economy and ecological environment in Changsha is established by using the method of system dynamics. The model simulates four development models, namely, the continuation of current situation, the new type of economic development, the type of water-saving and pollution control and the type of comprehensive coordination. The ratio of three industries, the annual growth rate of the primary industry, the annual growth rate of the secondary industry, the annual growth rate of the tertiary industry, and the average water consumption per mu are selected. Ten thousand yuan of industrial added value water consumption, urbanization rate, utilization ratio of water resources development, reuse of industrial water, domestic sewage discharge coefficient, sewage treatment rate, reusing rate of reclaimed water, population growth rate, industrial sewage discharge coefficient and cities and towns, The per capita water consumption in rural areas is taken as the decision-making variable, and the main evaluation indexes are GDP, population, water demand of residents, total economic water demand and pressure of supply and demand. The results show that the integrated and coordinated simulation results are the best, with the strongest ability of sustainable development, and selected as the optimal scheme; the first, second, and third industries maintain 10 / 12 and 12 / 12 annual growth rates, respectively, and the current situation of reducing and controlling pollution is consistent with the continuation of the current situation. The pressure of supply and demand will be more than twice that of the scheme of reducing expenditure and controlling pollution, the influence of economic production water on the pressure of supply and demand of water resources is much greater than that of domestic water and ecological water of the environment. It is feasible to reduce the per capita water consumption to balance the increase of water consumption due to the increase of population.
【学位授予单位】：湖南农业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV213.4
【参考文献】
相关期刊论文 前10条
1 黄义德;周银平;陈来宝;金丛岭;王代林;肖幼;周虹;;淠史杭灌区综合节水技术研究[J];安徽农业科学;2006年06期
2 黄牧涛,黄科p，
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