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Carrying Capacity and Coupling Coordination of Water and Land Resources Systems in Arid and Semi-arid Areas: A Case Study of Yulin City, China
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作者 ZHANG Qianxi CAO Zhi +1 位作者 WANG Yongsheng HUANG Yijia 《Chinese Geographical Science》 SCIE CSCD 2024年第5期931-950,共20页
Quantitatively assessing the carrying capacity of water and land resources systems in arid and semi-arid areas is crucial for achieving the 2030 Sustainable Development Goals.In this work,taking Yulin City in China as... Quantitatively assessing the carrying capacity of water and land resources systems in arid and semi-arid areas is crucial for achieving the 2030 Sustainable Development Goals.In this work,taking Yulin City in China as a case study and employing the Criteria Importance Through Intercriteria Correlation(CRITIC)method,a modified model of coupling degree was developed to evaluate the car-rying capacity of water and land resources systems endowment and utilization,as well as their coupling coordination degree from 2013 to 2020.Our findings indicate that the water and land resources of Yulin are diminishing due to declines in agriculture,higher industrial water use,and wetland shrinkage.However,reallocating domestic water for ecological sustainability and reducing sloping farmland can mitigate this trend of decline.Temporally,as the coupling coordination between water and land resources system endowment in Yulin continuously improved,the coupling coordination between water and land resources system utilization first decreased and then in-creased with 2016 as the turning point.Spatially,the carrying capacity of water and land resources systems,the coupling coordination degree between water and land resources system endowment,and the coupling coordination degree between water and land resources system utilization in Yulin exhibited the same pattern of being higher in the six northern counties than in the six southern counties.Improving the water resources endowment is vital for the highly efficient use of water and land resources. 展开更多
关键词 water and land resources systems carrying capacity coupling coordination human-earth system sustainable development Yulin city China
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Evaluation of regional water resources carrying capacity based on binary index method and reduction index method 被引量:13
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作者 Hong-yuan Fang Sheng-wei Gan Chen-ying Xue 《Water Science and Engineering》 EI CAS CSCD 2019年第4期263-273,共11页
Based on the regional water resources carrying capacity(WRCC)evaluation principles and evaluation index system in the National Technical Outline of Water Resources Carrying Capacity Monitoring and Early Warning(hereaf... Based on the regional water resources carrying capacity(WRCC)evaluation principles and evaluation index system in the National Technical Outline of Water Resources Carrying Capacity Monitoring and Early Warning(hereafter referred to as the Technical Outline),this paper elaborates on the collection and sorting of the basic data of water resources conditions,water resources development and utilization status,social and economic development in basins,analysis and examination of integrity,consistency,normativeness,and rationality of the basic data,and the necessity of WRCC evaluation.This paper also describes the technique of evaluating the WRCC in prefecture-level cities and city-level administrative divisions in the District of the Taihu Lake Basin,which is composed of the Taihu Lake Basin and the Southeastern River Basin.The evaluation process combines the binary index evaluation method and reduction index evaluation method.The former,recommended by the Technical Outline,uses the total water use and the amount of exploited groundwater as evaluation indices,showing stronger operability,while the latter is developed by simplifying and optimizing the comprehensive index system with greater systematicness and completeness.The mutual validation and adjustment of the results of the above-mentioned two evaluation methods indicate that the WRCC of the District of the Taihu Lake Basin is overloaded in general because some prefecture-level cities and city-level administrative divisions in the Taihu Lake Basin and the Southeastern River Basin are in a severely overloaded state.In order to explain this conclusion,this paper analyzes the causes of WRCC overloading from the aspects of basin water environment,water resources development and utilization,water resources regulation and control ability,water resources utilization efficiency,and water resources management. 展开更多
关键词 water resources carrying capacity(WRCC) EVALUATION Binary index method Reduction index method Prefecture-level cities and city-level administrative divisions
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System dynamics model of Suzhou water resources carrying capacity and its application 被引量:14
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作者 Li CHENG 《Water Science and Engineering》 EI CAS 2010年第2期144-155,共12页
A model of Suzhou water resources carrying capacity (WRCC) was set up using the method of system dynamics (SD). In the model, three different water resources utilization programs were adopted: (1) continuity of... A model of Suzhou water resources carrying capacity (WRCC) was set up using the method of system dynamics (SD). In the model, three different water resources utilization programs were adopted: (1) continuity of existing water utilization, (2) water conservation/saving, and (3) water exploitation. The dynamic variation of the Suzhou WRCC was simulated with the supply-decided principle for the time period of 2001 to 2030, and the results were characterized based on socio-economic factors. The corresponding Suzhou WRCC values for several target years were calculated by the model. Based on these results, proper ways to improve the Suzhou WRCC are proposed. The model also produced an optimized plan, which can provide a scientific basis for the sustainable utilization of Suzhou water resources and for the coordinated development of the society, economy, and water resources. 展开更多
关键词 system dynamics (SD) water resources carrying capacity (WRCC) eco-environmental water demand Suzhou city
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The Population Carrying Capacity of Water Resources in Yulin City 被引量:1
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作者 Lijuan DANG Yong XU Zhiqiang WANG 《Asian Agricultural Research》 2014年第12期85-91,95,共8页
Assessing the water resource carrying capacity is beneficial for measuring the scale of industry and population agglomeration,and also avoiding the contradiction between increasing people and decreasing available wate... Assessing the water resource carrying capacity is beneficial for measuring the scale of industry and population agglomeration,and also avoiding the contradiction between increasing people and decreasing available water resource,due to the expansion of industry and city size.Based on the prediction model of optimum population development size,by using hydrological data,also with the demographic data from 1956 to 2010,this article analyzes and predicts the urban moderate scale under the limit of the water resource in the future of Yulin City by GIS. The main conclusions are as follows. There is growing tendency of water resources overloading. According to the result of model simulation,by2015,the overload rate of population size will be 1. 04. By 2020,the overload rate of population size will grow up to 1. 08. The oversized population mainly comes from cities and towns. The overload rate for cities and towns in 2015 and 2020 is 1. 89 and 1. 73,respectively. With the expansion of cities and industries,suburban areas could have a great potential for carrying population,because lots of suburban people may move to cities and towns according to prediction. In view of the above-mentioned facts,the population size should be controlled in a reasonable range. 展开更多
关键词 Carrying capacity of water resources POPULATION SI
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The comprehensive evaluation on resource environmental bearing capacity of central cities in the Yellow River Delta-A case study on Dongying City 被引量:2
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作者 WANG Kui-feng XU Meng CHEN Xiao-man 《Journal of Groundwater Science and Engineering》 2017年第4期354-363,共10页
Dongying City, which is the most important central city in the Yellow River Delta, is located in the estuary of the Yellow River. With a short land formation time, ecological environment is very weak in this area. To ... Dongying City, which is the most important central city in the Yellow River Delta, is located in the estuary of the Yellow River. With a short land formation time, ecological environment is very weak in this area. To realize the sustainable economic development of the Yellow River Delta, resource environment and resource environmental bearing capacity(REBC) must be improved. This study builds assessment system of regional REBC through resource and economic characteristics in Yellow River Delta and uses principal component analysis(PCA) method to evaluate REBC of five counties and districts in Dongying City in 2011-2015 on the dimensions of time and space. Results show that, on the time dimension, Guangrao County is ranked first, Dongying district second for four years and Hekou and Kenli districts with lower ranks in 2012-2015, indicating that more attention needs to be paid to REBC of Hekou and Dongying districts and these two districts should be included into key monitoring areas. From space scale, REBC in five counties and districts has been gradually improving. In order to further develop REBC in Dongying City, measures such as intensifying protection of urban ecological environment and developing circular economy, etc. should be implemented. 展开更多
关键词 RESOURCE environmental bearing capacity Dongying city Comprehensive evaluation YELLOW River DELTA
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Vulnerability assessment of water resources to climate change in Chinese cities 被引量:6
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作者 ZHOU Jing-bo ZOU Ji 《Ecological Economy》 2010年第2期106-114,共9页
Climate change is an inevitable trend,which challenges security of water resources in China,especially in cities.Assessing vulnerability of water resource to climate change in cities has important role for policy make... Climate change is an inevitable trend,which challenges security of water resources in China,especially in cities.Assessing vulnerability of water resource to climate change in cities has important role for policy makers. The paper constructs a vulnerability function,including exposure,sensitivity and adaptive capacity,according to the vulnerability concept proposed by IPCC,establishes an assessment indicators system of water resources to climate change in cities,and analyzes vulnerability features of Chinese cites based on 655 cities'data in 2006.The vulnerability assessment results show that there are distinctive differences among all the cities,between east,central and west cities,between ordinary,big and mega cities,while there is no statistical significant difference between north and south cities.Based on the research,the paper suggests that strategic emphasis should focus on the central cities and ordinary cities 展开更多
关键词 city water resources Climate change ASSESSMENT VULNERABILITY Adaptive capacity
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The Relationship between Natural Resources and Population Development in Liaocheng City
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作者 LU Ya-kun LIU Jia-zhen +1 位作者 CHEN Yong-jin XU Jing 《Asian Agricultural Research》 2011年第1期108-111,共4页
According to the relevant data about the land resources and population in Liaocheng City from 1999 to 2008, by using the research method of bearing capacity of natural resources, the thesis analyzes the relationship b... According to the relevant data about the land resources and population in Liaocheng City from 1999 to 2008, by using the research method of bearing capacity of natural resources, the thesis analyzes the relationship between natural resources and dynamic change of population in Liaocheng City. The results show that the farmland tends to diminish on the whole, and forests, garden land, urban-rural settlements and land for enterprises and mining increase slowly. Based on the analysis of the dynamic relationship between land resources and population, we conclude that the land resources still can bear the current population in Liaocheng City, but the population development inflict critical pressure on the forest resources and water resources. 展开更多
关键词 Liaocheng city Natural resources bearing capacity index capacity of bearing pressure China
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基于系统动力学模型的郑州市水资源承载力动态模拟
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作者 李铭 李想 +3 位作者 牛超杰 全李宇 赵连军 胡彩虹 《中国农村水利水电》 北大核心 2024年第6期49-55,63,共8页
水资源问题制约着缺水城市的可持续发展,近年来郑州市社会经济高速发展,其水资源有限的现状与用水需求快速增长之间的矛盾愈加凸显。为科学研究郑州市水资源承载力远期发展情况,根据郑州市经济社会现状的水资源供需和发展状况,采用多系... 水资源问题制约着缺水城市的可持续发展,近年来郑州市社会经济高速发展,其水资源有限的现状与用水需求快速增长之间的矛盾愈加凸显。为科学研究郑州市水资源承载力远期发展情况,根据郑州市经济社会现状的水资源供需和发展状况,采用多系统综合的系统动力学方法(System Dynamics,SD),结合水资源、生态、经济社会、水利工程四个子系统,构建郑州市水资源承载力研究的SD模型。将2010-2019年的历史数据与SD方法的模拟数据进行比较,平均误差均小于10%,具有较高的可信度,可用来预测郑州市未来的水资源承载力发展情况。在此基础上,通过设定现状延续、控污节流、开源控污和开源节流4种不同方案,对2020-2030年水资源承载力系数进行动态模拟预测。结果表明:2030年4种方案下的水资源承载力系数分别为1.24、1.18、1.00、0.89,现状延续和控污节流方案下的郑州市水资源承载力随着时间的推移呈现严重超载状态,无法承载郑州市经济社会的快速发展;开源控污方案在预测期内的水资源承载力超载状态会对经济社会发展产生较大阻力。故开源节流方案为最佳方案,水资源承载力系数小于1,在研究期内未出现超载状态,可有利缓解郑州市的缺水状况,促进经济社会的发展。结合4种方案的优点,提出有利于郑州市水资源可持续发展的建议与对策。 展开更多
关键词 水资源承载力 系统动力学模型 郑州市 水资源承载力系数
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哈尔滨市水资源环境承载能力评价
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作者 马诗敏 崔健 +1 位作者 郇恒飞 孙家全 《地质与资源》 CAS 2024年第3期349-354,290,共7页
哈尔滨市是全国主要缺水城市之一.为了合理使用水资源,维持水资源的可持续发展状况,维护社会经济,进行哈尔滨市水资源环境承载能力评价研究显得十分必要.本研究分析了水资源环境承载力主要影响因素,采用隶属度函数确定各单项指标隶属度... 哈尔滨市是全国主要缺水城市之一.为了合理使用水资源,维持水资源的可持续发展状况,维护社会经济,进行哈尔滨市水资源环境承载能力评价研究显得十分必要.本研究分析了水资源环境承载力主要影响因素,采用隶属度函数确定各单项指标隶属度,结合Delphi法得出评判结果矩阵,并采用数据离散化,提高了此评价方法的表达能力.根据水资源环境承载力评价结果,分析了哈尔滨市水资源环境承载力变化趋势,为以后相关研究提供了依据. 展开更多
关键词 水资源 环境承载力 隶属函数 DELPHI法 哈尔滨市
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基于组合赋权TOPSIS模型的宿州市水资源承载力评价及障碍因子研究
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作者 刘建奎 张震 +1 位作者 刘向红 魏路 《人民珠江》 2024年第6期100-106,共7页
研究区域水资源承载力是发现和解决区域水资源问题的重要途径。针对皖北平原水资源短缺和水环境污染等问题,以宿州市为例,基于主体框架法构建评价指标体系,采用组合赋权的优劣解距离法对宿州市2012—2021年水资源承载力进行了评价,并引... 研究区域水资源承载力是发现和解决区域水资源问题的重要途径。针对皖北平原水资源短缺和水环境污染等问题,以宿州市为例,基于主体框架法构建评价指标体系,采用组合赋权的优劣解距离法对宿州市2012—2021年水资源承载力进行了评价,并引入障碍度模型识别全市水资源承载力提升的障碍因素。结果表明:2012—2021年,宿州市水资源承载力状况呈现波动变化的趋势(临界超载—轻度超载—临界超载),全市水资源供需处于紧平衡状态;人均供水量、万元GPD排放COD量、城市污水处理厂日处理能力是阻碍宿州市水资源承载力提升的主要障碍因子。该评价结果及评价方法合理可靠,可为其他城市水资源承载力评价提供有益参考。 展开更多
关键词 水资源承载力 组合赋权 TOPSIS模型 障碍因子 宿州市
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安徽省资源型城市水资源承载力时空演变及其驱动因素分析
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作者 朱艳娜 齐林 孔玉 《河北环境工程学院学报》 CAS 2024年第5期63-70,共8页
以安徽省资源型城市为样本区域,建立“人口-水质-水量-社会”评价体系;采用秩和比综合评价法,分级评价安徽省资源型城市水资源承载力;借助标准差椭圆和地理探测器分析研究区域水资源承载力的空间分异性及驱动因子的解释力大小。结果表明... 以安徽省资源型城市为样本区域,建立“人口-水质-水量-社会”评价体系;采用秩和比综合评价法,分级评价安徽省资源型城市水资源承载力;借助标准差椭圆和地理探测器分析研究区域水资源承载力的空间分异性及驱动因子的解释力大小。结果表明:2011—2021年,安徽省资源型城市的水资源承载力指数整体相对较低,2011—2015年以Ⅱ级(超载)状态为主,2015—2021年逐渐改善为Ⅲ级(临界)或Ⅳ级(不超载);安徽北部城市水资源承载力比南部城市更低,但增速较快,不均衡的水资源承载力分布格局正逐步改善;对各市水资源承载力空间分异性解释力最大的因子为生态补水用水量,其次为水污染次数和采掘业从业人员数。 展开更多
关键词 资源型城市 水资源承载力 秩和比综合评价 空间分异性 地理探测器
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水文水质条件对河段纳污能力的影响---以乌东德库尾攀枝花河段为例
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作者 吴比 李云成 +4 位作者 樊皓 王孟 李斐 肖洋 李亚俊 《长江科学院院报》 CSCD 北大核心 2024年第7期64-71,共8页
定量分析水文水质条件变化下河段纳污能力变化,对于流域或区域水资源保护和水污染防治具有显著现实意义。以金沙江乌东德库尾攀枝花市三堆子—拉鲊河段为研究对象,探究水文水质条件变化对研究河段氨氮纳污能力的影响。结果表明,三堆子... 定量分析水文水质条件变化下河段纳污能力变化,对于流域或区域水资源保护和水污染防治具有显著现实意义。以金沙江乌东德库尾攀枝花市三堆子—拉鲊河段为研究对象,探究水文水质条件变化对研究河段氨氮纳污能力的影响。结果表明,三堆子断面流量介于900~2000 m^(3)/s、氨氮浓度介于0.10~0.50 mg/L时,研究河段氨氮纳污能力介于235.12~4670.38 t/a,三堆子断面流量和氨氮浓度变化与河段氨氮纳污能力变化基本呈线性相关关系。三堆子断面流量和氨氮浓度较小时,综合纳污能力变化介于0.86~64.23 t/a,水文要素流量占主导作用;流量和氨氮浓度较大时,综合纳污能力变化介于-105.34~-1.84 t/a,水质要素氨氮浓度占主导作用。研究成果可为流域或区域水资源保护和水污染防治提供对策措施和参考依据。 展开更多
关键词 纳污能力 水文水质条件 水资源保护 水污染防治 乌东德水库
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京津冀城市群虚拟水流动格局变化对区域水资源压力的影响
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作者 任江楠 吕小瑜 +2 位作者 李伟峰 陈利顶 韩立建 《水利水电技术(中英文)》 北大核心 2024年第6期148-158,共11页
【目的】合理的虚拟水调动是缓解水压力的重要途径,尤其在人口聚集的城市群地区,用水需求激增导致区域缺水问题严重。城市群内部不同地区间的紧密关联有助于促进虚拟水贸易,对优化城市群水资源配置、缓解水资源压力具有重要意义。【方... 【目的】合理的虚拟水调动是缓解水压力的重要途径,尤其在人口聚集的城市群地区,用水需求激增导致区域缺水问题严重。城市群内部不同地区间的紧密关联有助于促进虚拟水贸易,对优化城市群水资源配置、缓解水资源压力具有重要意义。【方法】采用多区域投入产出法,解析极端缺水的京津冀城市群内外间及其内部的虚拟水流动格局与变化,并揭示其对缓解区域水压力的作用。【结果】结果表明:(1)2012—2017年京津冀城市群与外部地区的虚拟水贸易量先增加后减少,而城市群内部虚拟水自给量却先减少后增加,2015年后京津冀内部虚拟水贸易增强;(2)京津冀城市群内部虚拟水流动格局呈现明显的时空异质性,虚拟水主要由经济相对欠发达的周边城市流入经济相对发达的中心城市(北京市、天津市、石家庄市和廊坊市),且随时间的推移,流动强度和向中心城市的集中程度均不断加强;(3)虚拟水流动明显缓解了京津冀中心城市的水资源压力,其实际水压力指数比虚拟水流动后的假定水压力指数年均下降12.12%,且下降程度逐年增加,但却加重了周边城市的水资源压力。【结论】京津冀城市群虚拟水流动有效缓解了中心城市的缺水压力,但不同城市的产业结构调整、虚拟水流动格局优化仍有很大提升空间。 展开更多
关键词 多区域投入产出法 城市群 不同城市 虚拟水流动 水压力指数 水资源承载力
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DRYING UP OF THE YELLOW RIVER &ITS WATER RESOURCE BEARING CAPACITY
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作者 Feng Lihua (Department of Geography, Zhejiang Normal University, Jinhua 321004, Zhejiang) 《Natural Disaster Reduction in China》 2002年第4期18-21,共4页
The paper analyses the space time characteristics, primary causes and disastrous effects of the drying up of the Yellow River, and proposes the concept of "water resource bearing capacity (WRBC)", which refe... The paper analyses the space time characteristics, primary causes and disastrous effects of the drying up of the Yellow River, and proposes the concept of "water resource bearing capacity (WRBC)", which refers to the maximum bearing capacity of a river in meeting human demands for water on the precondition of sound recycling of the ecosystem. The concept encourages cautious human actions to save and conserve water resources. 展开更多
关键词 DRYING up of the YELLOW River water environment water resource bearing capacity sustainable use
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基于SD模型的乌苏市水资源承载力仿真与情景模拟
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作者 徐慧敏 何英 +2 位作者 伊力亚斯·吐尔逊 司涵 卢潇悦 《长江科学院院报》 CSCD 北大核心 2024年第5期45-50,58,共7页
乌苏市位于天山北坡经济带中部,是天山经济带的核心开发区。由于水资源短缺,乌苏市核心经济开发区的建设受到了阻碍。因此,研究乌苏市水资源的最优可持续发展模式已成为迫切需要解决的问题。基于系统动力学原理,利用Vensim软件,建立乌... 乌苏市位于天山北坡经济带中部,是天山经济带的核心开发区。由于水资源短缺,乌苏市核心经济开发区的建设受到了阻碍。因此,研究乌苏市水资源的最优可持续发展模式已成为迫切需要解决的问题。基于系统动力学原理,利用Vensim软件,建立乌苏市系统动力学模型,拟定4种不同的发展情景模式,基于乌苏市2010—2020年的有关历史数据,预测了2021—2030年乌苏市水资源承载力的动态变化,从而找到改善乌苏市水资源承载能力的途径。结果表明:现状延续型情景下乌苏市2030年的需水总量达9.83亿m^(3),超过乌苏市2030年用水总量控制目标,缺水量达2.66亿m^(3);在现状延续型、协调发展型、经济发展型和节水型4种情景下,乌苏市2025年的水资源供需比分别为0.71、0.80、0.69、0.89,2030年的水资源供需比分别为0.73、0.85、0.68、0.92;乌苏市水资源承载力一直处于供需不平衡的局面,只有协调发展情景下,乌苏市水资源供需比较高且趋向良性发展模式;现状延续型情景下,2022—2030年,乌苏市的水资源承载状态均为临界承载状态,且随着时间的推移,承载状态将逐渐恶化,未来乌苏市的水资源将无法承载起社会经济的发展规模。研究成果可为乌苏市水资源的高效合理利用提供理论依据。 展开更多
关键词 水资源承载力 系统动力学(SD)模型 乌苏市 情景模拟
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基于改进模糊综合评价的十堰市水资源承载力评价
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作者 王昆漩 陈威 《水电能源科学》 北大核心 2024年第2期14-17,共4页
十堰市是南水北调中线工程调水源头所在地和核心水源区,为全面了解十堰市水资源可持续性开发利用情况,基于水资源、生态环境、社会经济三个层面构建了十堰市水资源承载力评价指标体系,使用灰色关联分析法对指标体系进行筛选,采用熵权法... 十堰市是南水北调中线工程调水源头所在地和核心水源区,为全面了解十堰市水资源可持续性开发利用情况,基于水资源、生态环境、社会经济三个层面构建了十堰市水资源承载力评价指标体系,使用灰色关联分析法对指标体系进行筛选,采用熵权法-层次分析法组合权重计算指标权重,通过改进的模糊综合评价法评价了2010~2021年十堰市水资源承载力情况。结果表明,十堰市水资源承载力整体呈波动上升趋势,2016年开始稳定达到可承载状态,丰水年可达到良好承载状态;生态环境子系统和社会经济子系统呈上升趋势,而水资源子系统波动较大,无明显规律;十堰市应继续加大污、废水治理力度,调整用水结构,建设节水型社会,以实现水资源与人类社会和谐发展。 展开更多
关键词 水资源承载力 模糊综合评价 灰色关联分析法 十堰市 南水北调
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聊城市水环境承载现状及纳污能力分析 被引量:1
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作者 庄付磊 刘新征 周成宽 《黑龙江水利科技》 2024年第9期30-33,104,共5页
文章以聊城市水域情况为典范,论述了实施污染物排放限额制度的重要性,阐明确立各水域污染容量控制界限的主旨及其要点,评估了该市各水功能区的水质现状。基于污染负荷评估的标准和流程,确定了各个水功能区的纳污能力,计算出它们在特定... 文章以聊城市水域情况为典范,论述了实施污染物排放限额制度的重要性,阐明确立各水域污染容量控制界限的主旨及其要点,评估了该市各水功能区的水质现状。基于污染负荷评估的标准和流程,确定了各个水功能区的纳污能力,计算出它们在特定年份的污染物总承载量,并对聊城市各水功能区的环境承载力状况进行了深入分析。最后,就实行污染物总量控制提出建议措施。 展开更多
关键词 水功能区 达标评价 承载分析 纳污能力 聊城市
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基于生态足迹法的铜陵市水资源可持续利用分析
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作者 岳子昊 高云霞 《环境保护与循环经济》 2024年第8期48-51,共4页
以安徽省铜陵市为例,采用水资源生态足迹法对铜陵市2016—2021年水资源情况进行分析。结果表明:2016—2021年,铜陵市人均水生态足迹与万元GDP水资源生态足迹逐年递减;研究期间不存在生态赤字,水环境生态整体处于可持续利用状态,水资源... 以安徽省铜陵市为例,采用水资源生态足迹法对铜陵市2016—2021年水资源情况进行分析。结果表明:2016—2021年,铜陵市人均水生态足迹与万元GDP水资源生态足迹逐年递减;研究期间不存在生态赤字,水环境生态整体处于可持续利用状态,水资源利用效率近年来稳步提高。 展开更多
关键词 水资源生态足迹 水资源承载力 生态盈余 水资源可持续发展 铜陵市
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山东引黄城市黄河水资源承载力保障分析
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作者 吕延昌 程功 《水资源开发与管理》 2024年第5期56-59,共4页
为提升黄河山东段水资源承载力,进一步推动黄河水资源对山东省经济社会发展发挥促进作用,本文在“四水四定”原则下,通过数学模型将水资源承载力数量化,得出山东省引黄城市黄河水资源承载力正在下降的结论,并提出构建评价体系以促进供... 为提升黄河山东段水资源承载力,进一步推动黄河水资源对山东省经济社会发展发挥促进作用,本文在“四水四定”原则下,通过数学模型将水资源承载力数量化,得出山东省引黄城市黄河水资源承载力正在下降的结论,并提出构建评价体系以促进供需均衡、锚定节水方向完善水定额管理体系以提高水资源利用率、推动水系管理共建加强水环境保护以实现水资源可持续利用等措施来提升水资源承载力。 展开更多
关键词 山东引黄城市 四水四定 水资源承载力 措施
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基于改进投影寻踪方法的水资源承载力研究
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作者 赵小勇 余静 +2 位作者 张双 刘洪玲 刘玉玉 《人民黄河》 CAS 北大核心 2024年第5期74-79,共6页
为了解决水资源承载力分类评价的高维和非线性问题,提升水资源承载力分类评价模型的精确性,提出改进的投影寻踪方法——基于最大信息熵原理的投影寻踪分类模型。对该模型中的密度窗宽R进行改进,推导得出密度窗宽的合理取值,并将该模型... 为了解决水资源承载力分类评价的高维和非线性问题,提升水资源承载力分类评价模型的精确性,提出改进的投影寻踪方法——基于最大信息熵原理的投影寻踪分类模型。对该模型中的密度窗宽R进行改进,推导得出密度窗宽的合理取值,并将该模型应用于济宁市2010—2018年水资源承载力状态评价;建立灰色GM(1,1)模型,对济宁市2019—2025年水资源承载力状态进行预测,预测结果符合实际情况。研究表明:济宁市2010—2017年水资源承载力评价等级为Ⅲ级,2018年水资源承载力评价等级为Ⅱ级;预测济宁市2019—2025年水资源承载力状态为Ⅱ级,水资源承载力状态总体保持良好态势。通过分析各评价指标对水资源承载力的影响程度,对提升该市水资源承载力提出相关建议。 展开更多
关键词 水资源承载力 投影寻踪 密度窗宽 济宁市
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