共查询到19条相似文献，搜索用时 109 毫秒
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基于“驱动力-压力-状态-影响-响应”（DPSIR）系统模型,分别从水资源、经济社会和生态环境等方面选取22个评价指标,建立了沂河水资源可持续利用评价指标体系,运用基于层次分析法和熵值法的综合权重法确定各指标权重,采用综合指数法进行水资源可持续利用评价。研究表明：沂河水资源可持续利用综合评价值介于0.478～0.633,可持续利用水平为基本可持续,准则层以影响评价值最高,其次是状态、压力、驱动力和响应。通过实际调研可得,评价结果与流域实际情况基本相符。近年来,沂河水资源可持续利用水平逐渐提高,但未来仍需通过加大政府水利投入、增强人民环境保护观念等措施,提高沂河水资源可持续利用水平。 相似文献
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水资源可持续利用指标体系及评价方法是水资源可持续利用研究的核心问题之一。以复合系统理论为基础,将水资源、社会经济和环境组成的复合系统定义为水资源可持续利用系统(RSWRS系统)。应用Bossel可持续发展基本定向指标框架,建立了水资源可持续利用指标评价体系。应用系统综合评价法,权重采用基于Bossel评分标准,以参考状态的离差平方和最大法计算,建立了以RSWRS系统发展综合指数和发展态势度量模型。以陕西省为例,进行了水资源可持续利用的综合定量评价。 相似文献
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在模糊物元分析的基础上,结合欧氏贴近度的概念,提出了基于欧氏贴近度的模糊物元分析方法.在对区域水资源可持续利用进行综合评价时,把各地区各开发利用阶段作为物元的事物,以它们的各项评价指标及其相应的模糊量值构造复合模糊物元,通过计算与标准模糊物元之间的欧氏贴近度,并采用层次分析法计算各评价指标的权重,实现对各地区水资源可持续利用的综合评价与排序.该模型被应用到西安市的水资源可持续利用综合评价中,取得了较好的效果,对西安市水资源的可持续利用具有重要的指导意义. 相似文献
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区域水资源可持续利用评价 总被引：4，自引：0，他引：4
水资源可持续利用评价是可持续发展战略研究的核心问题之一,选取合适的评价方法是正确评价水资源可持续利用的基本前提。在目前提出的评价方法中,关键性的问题是如何合理确定各个评价指标的权重,层次分析法是解决这一问题常用的有效方法。但是,层次分析法没有给出判断矩阵一致性的调整方法;而且评价结果也只能表明各个指标对水资源可持续利用的影响大小,并不能判断研究区水资源可持续利用程度。本文在层次分析法的基础上,探讨了判断矩阵一致性的修正方法,构造出判断水资源可持续利用程度的综合指数,并对云南省水资源可持续利用程度进行评价。 相似文献
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Ju-Liang Jin Yi-Ming Wei Le-Le Zou Li Liu Wei-wei Zhang Yu-liang Zhou 《Natural Hazards》2012,62(1):115-127
Early warning for sustainable utilization of regional water resources is an important control measure for regional water security
management. To establish operable and quantitative forewarning model, in this paper, a new forewarning model for sustainable
utilization of water resources based on BP neural network and set pair analysis (named BPSPA-FM for short) was established.
In the proposed approach, the accelerating genetic algorithm–based fuzzy analytic hierarchy process was suggested to determine
the weights of evaluation indexes, back-propagation neural network updating model was used to predict the values of the evaluation
indexes, and the set pair analysis was used to determine the function values of relative membership in variable fuzzy set
of the samples. BPSPA-FM was applied to early warning for sustainable utilization of regional water resources of Yuanyang
Hani terrace in Yunnan Province of China. The results show that the states of sustainable utilization in this system were
near the critical value between nonalarm and slight alarm from 1990 to 2000, the states of the system fell into slight alarm
and were rapidly close to intermediate alarm from 2001 to 2004, and the states of the system were predicted to be near the
critical value between slight alarm and intermediate alarm from 2005 to 2010. The main alarm indexes of the system were utilization
ratio of water in agriculture, control ratio of surface water, per capita water supply, per unit area irrigation water and
per capita water consumption. BPSPA-FM can take full advantage of the changing information of the evaluation indexes in adjacent
periods and the relationship between the samples and the criterion grades. The results of BPSPA-FM are reasonable with high
accuracy. BPSPA-FM is general and can be applied to early warning problems of different natural hazards systems such as drought
disaster. 相似文献
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WANG Kui-feng 《地下水科学与工程》2016,4(2):120-130
Research on the carrying capacity and security of water resources is vital for its contribution to implementing sustainable development goals. The limitation of water resources is one of the most important factors that influence the sustainable utilization of resources. Studying the carrying capacity of water resources will not only facilitate monitoring and forecast of national resources and environmental carrying capacity, but also be valuable for building ecological civilization. According to the principles of evaluation system, the carrying capacity of water resources on Shandong peninsula is explored. A comprehensive evaluation model of the carrying capacity of water resources is constructed based on the carrying capacity of water resources index and the composite of water resources index. The results show that the capacity of water resources on Shandong peninsula is generally consistent with overexploitation, and that the development and utilization of water resources has reached a considerable scale under existing economic and technological conditions. The carrying capacity of water resources in this region is relatively small, and the contradiction between supply and demand of water resources is alarming. Relative countermeasures are put forward, to improve the water resources carrying capacity and to provide a basis for future sustainable development and utilization of water resources in this region. 相似文献
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陕西省是一个水资源短缺的省份，如何以水资源的可持续利用支持经济社会的可持续发展是当前面临的重要课题。本文通过对陕西省水资源特点和水资源开发利用中存在问题的分析，提出了实现水资源可持续利用的对策。 相似文献
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Qiang Fu Fanli Gong Qiuxiang Jiang Tianxiao Li Kun Cheng He Dong Xiaosong Ma 《Natural Hazards》2014,71(3):1899-1912
Study on risk assessment of water resources system is the key to ensure the water resources security and its sustainable utilization. Under the principles of sustainable utilization of water resources, with the thinking of the risk, the Pansystems Observation-Control Model of Periphery is applied to risk assessment of water resources system, and the model is based on the periphery theory and pansystems theory, with the observation-control risk analysis technology as the technical core. According to the synchronized analysis of the risk and gain of the five sustainable utilization schemes of water resources of Kiamusze in Heilongjiang, the best one for Kiamusze was confirmed and also opens a new way to research in the field of risk assessment of water resources system. 相似文献
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水是基础性的自然资源和战略性的经济资源,水资源的可持续利用是经济可持续发展极为重要的保证.本文在分析宝坻区自然地理及水利工程和水资源开发利用现状的基础上,对地表水、地下水资源及供需平衡进行了分析计算,提出了水资源优化配置的措施. 相似文献
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半干旱地区水资源承载能力研究——以松嫩平原西南部霍林河流域为例 总被引：2，自引：2，他引：0
水资源的合理开发利用与否是影响社会经济发展的瓶颈。以霍林河流域为研究对象,对该流域特征及其生态环境问题进行了分析,构建了水资源承载力研究的指标体系,该体系包括水资源形成的自然条件、开发利用及社会经济因素3个方面9项指标。应用因子分析法对流域内各县市水资源承载能力进行定量评价,结果表明,霍林河流域从上游到下游,水资源承载能力主要受水资源形成条件和开发利用强度的影响,水资源承载能力评价是水资源可持续利用的关键。 相似文献
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利用吉林省西部及周围地区气象、水文、地质和经济等方面大量实测、调查及统计资料 ,采用多种方法系统研究了该区与水有关的主要生态环境问题和水资源开发利用现状。进行了水资源及可利用水资源评价。采用多种方法建立了水资源可持续开发利用的评价指标体系 ,确定了各分区水资源可持续开发的有关指标。采用模糊综合评判方法确定了分区、市、县及主要城镇的水资源可持续开发模式 ,为研究区及各级行政区水资源可持续开发利用提供了科学依据。 相似文献