Carrying Capacity and Coupling Coordination of Water and Land Resources Systems in Arid and Semi-arid Areas: A Case Study of Yulin City, China

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.

Research on the Sustainable Utilization of Water Resources of Jinan City

The study on the sustainable utilization of water resources of Jinan city is a research hotspot in the urban sustainable development field.How to use a scientific and rational evaluation index system to analyze the sustainable utilization of water resources of Jinan city and then guide the development and utilization of water resources becomes particularly important.Based on the theory of sustainable development this study introduces the method,basic steps and evaluation indexes of the assessment of the development and utilization of water resources.By systemic analyzing the exploitation and utilization standards of water resources and economy and society in Jinan city,the evaluation and index system of sustainable utilization of water resources in Jinan city can be constructed and index weight can be confirmed,and then,the standard of sustainable utilization of water resources in different years can be analyzed comparably.Thus,the deficiency of lack of reflection of coordination extent in water resources development standard,society and economy in traditional evaluation method is settled efficiently.The paper takes the sustainable utilization of water resources of Qingdao City in 2008 as the standard to compare and assess the water resources utilization in Jinan City.The paper also collects data of water resources in Jinan City from 2001 to 2007.The result indicates that evaluation method is of feasibility and it is effective to the implementation of sustainable utilization strategy water resources in Jinan City.

The Quantitative Assessment System for Brine Resource Industry Based on Sustainable Development Theory:a Case Study on Xitai-Jinaier Lake,Qinghai,China

Salt lake resource is one of preponderant and strategic mineral resources in China.Some important chemical elements contained in brine are highly significant to both agriculture security and national security.Given the

Spatial-Temporal Differentiation of Sustainable Development in Cities and Counties of Hainan Province

A total of 18 cities and counties in Hainan from 2012 to 2015 were selected as the basic research units to construct an index system for evaluating the ability of sustainable development that includes four guidelines of economic development capacity, population development capacity, social support capacity, and resource utilization and environmental protection capacity. The improved entropy method was used to determine the weight, the Technique for Order of Preference by Similarity to Ideal Solution(TDPSIS) was used to calculate the capacity for sustainable development of the cities and counties and sort these cities and counties, and Arcgis10.2 was used to draw the provincewide distribution of the four guidelines. Thereupon, the author reached following conclusions: there was no big regional difference in the sustainable development capacity of cities and counties in Hainan, and they were basically in a general state of intermediate stage in the past four years; Haikou City and Sanya City, as the key cities, had a higher ability of sustainable development and had shown a remarkable capacity to drive the sustainable development of surrounding areas; according to the development level, the four guidelines were in the following order: resource utilization and environmental protection capacity, population development capacity, social support capacity, and economic development capacity.

Towards sustainable mining cities: what policies should be sought and experiences could be learnt for China?

This paper aims to explore interinks between population, resoures, environment anddevelopment of mining cities in China. The authors place emphasis on speeific policy stud of how tostep a sustainable rnining city based on the analysis of six components constituting the integrative andsystendc backdrop to mining city sustainability. The attempts are taken to make a deep comparisonbased on the studies in the five typical cities of Datong, Daqing, Panzhihua, Jinchang and Golmud ofChina, combining some experiences and theorehca thoughts from the Western countries. Therelationship between the resourees endoment, mining (in broader sense) and economic developmentis given based on the analysis of development of mineral resources and formahon of mining cities.Morcover, some changing characteristics and related issues of China's mining cities on environmentand socio-econondc dimensions are considered. The last part of the paper focuses on the discussion ofrestructuring approach to the mining cities in China, some reflections and suggestions are put forward.

基于可持续发展视角我国稀土资源贸易安全评价研究

稀土是支撑高端技术创新和新兴产业发展的关键矿产资源,已经成为大国资源竞争和国际地缘经济政治博弈的重要对象。全球稀土供应链重构进程加剧,如何评估我国稀土资源贸易安全,破解稀土贸易贫困化增长困境,促进稀土产业可持续发展,是当前亟须关注和解决的重要课题。本研究基于“压力—状态—响应”模型(Pressure-State-Response Model)构建稀土贸易安全评价指标体系,测算不同时期我国稀土资源的压力指数、状态指数、响应指数,揭示我国稀土贸易安全指数演变特征,进一步建立多元线性回归模型,识别我国稀土贸易安全的影响因素。研究发现:我国稀土资源贸易安全度在持续下降,亟需优化贸易结构,降低供应链风险;我国稀土资源贸易的驱动因素主要来源于市场需求牵引、资源禀赋优势以及产业有序供给;全球稀土产业分工格局、资源价值核算方法缺失,限制了我国稀土资源贸易可持续发展。在此基础上,提出通过健全稀土资源收储体系、建设再生稀土研发和回收网络等方式,保障战略性稀土资源供给安全;同时,整合稀土行业优势资源与优化稀土产业链及供应链,深度参与全球稀土供应链治理,为我国稀土资源开发利用与可持续发展提供决策依据。

基于淮安市淮阴区“四水四定”试点的水资源刚性约束制度探讨

建立水资源刚性约束制度,落实以水定城、以水定地、以水定人、以水定产,对于实现区域水资源的可持续利用具有重要意义。以江苏省首批水资源刚性约束试点地区淮安市淮阴区为例,分析了淮阴区可持续发展与水资源刚性约束制度建设的必要性。以水资源为刚性约束,构建了淮阴区“四水四定”13项指标体系,解析了刚性约束制度体系内涵,构建了淮阴区水资源刚性约束制度体系,提出制定水资源调度制度、建立淮阴区水资源费征收准则等建议。

能源变革与生态福利绩效研究——基于新能源示范城市设立的准自然实验

能源变革是推动能源结构绿色转型的关键,新能源示范城市政策是能源变革的重要举措,也是推动城市生态文明建设发展的有力支撑。本文基于2007~2021年我国279个城市的面板数据,通过倾向得分匹配-双重差分模型(PSM-DID)探究新能源示范城市政策对生态福利绩效的影响。研究发现:新能源示范城市的设立有助于提升城市生态福利绩效。新能源示范城市政策对城市生态福利绩效的影响在东西部城市、行政等级高的城市和非资源型城市更为显著。机制检验表明新能源示范城市主要通过优化产业结构、提升技术创新水平和降低资源依赖度3种途径提升城市生态福利绩效,为政府有效实施城市能源建设并提升城市生态福利绩效提供积极的政策启示。

资源型老工业城市绿色低碳转型发展思路研究

资源型老工业城市具有资源型和老工业城市的双重属性,从资源开发利用、接续产业培育和城市综合转型的角度综合考虑,资源型老工业城市转型发展是我国经济高质量发展的重要一环。加快资源型老工业城市转型发展,是提高我国能源安全和产业安全的战略举措,也是促进区域协调发展的重大任务。建议今后一个时期,从国家层面加强全局统筹,综合施策,采取新的战略性举措,推动资源型老工业城市进发“新活力”。

基于海绵城市理论的城市公园景观设计研究

近年来,我国城镇化建设快速发展,城市化进程不仅带来了经济繁荣,也伴随着一系列严峻的环境问题。快速城市化导致的城市水体污染、内涝、水资源短缺等城市雨水问题,对居民日常生活造成了不可忽视的影响。为了应对这些挑战,我国提出了“海绵城市”这一创新性建设理念。城市公园拥有大规模的绿地和水体,是雨水储存再利用的天然容器,也是海绵城市建设的主要载体。基于此,文章围绕海绵城市理念展开研究,以城市公园景观为研究对象,探索将海绵城市理论融入城市公园景观设计的策略和方法,以期为后续海绵城市和公园景观的建设提供参考。

资源型城市可持续发展政策是否促进区域节能降碳?——兼论对居民收入的影响

在努力推进人与自然和谐共生的背景下,资源型城市的可持续发展对实现中国式现代化目标的重要性与示范性日益凸显。该研究基于中国2006—2021年278个地级城市的面板数据,就资源型城市可持续发展政策的节能降碳效应予以评估,检验其影响机制,并分别基于宏观和微观数据,聚焦城市和家庭层面,进一步探讨该政策对当地居民收入的影响。研究发现:资源型城市可持续发展政策显著降低了能源消耗和碳排放,即政策具有节能降碳效应,并且经过一系列稳健性检验后结论依然成立;在异质性方面,该政策对胡焕庸线东南侧城市、南方城市、人口流出城市以及森工城市的节能降碳效果更为显著,对成长型城市的节能降碳效果则相对较弱;在作用机制方面,该政策通过提升技术创新水平和产业结构合理化程度推动资源型城市节能降碳,即政策具有促进技术创新与推动产业优化的赋能作用;进一步分析发现,该政策在发挥节能降碳效应的同时对资源型城市的居民收入增长产生抑制作用,并且在不同城市间存在差异,胡焕庸线东南侧城市、人口流出城市和成长型城市受到的抑制作用更强。政府在促进资源型城市可持续发展的过程中,须结合当地资源禀赋与发展现实,强化顶层设计与制度安排,因地制宜实施差异化规划方案;充分发挥技术创新和产业优化机制作用,鼓励促进各创新要素向绿色低碳的接续替代产业流动;同时注重对微观个体的激励与帮扶以保持居民收入水平的稳步提升,在确保促进资源型城市可持续发展的同时,同频推进居民收入增长与生态环境保护的和谐共进。

吉林省资源型城市转型升级问题研究

作为重要的资源和原材料供应地,吉林省资源型城市曾在我国经济高速增长阶段盛极一时,为我国经济的快速发展贡献了极大的力量。然而,随着经济发展由高速向高质量方向迈进,资源型城市亟需转型升级,以获得可持续发展。在中央和吉林省政府的支持下,吉林省资源型城市转型升级虽取得了一定的成绩,但现阶段仍存在多种因素阻碍其进一步的转型升级。因此,深入剖析吉林省资源型城市转型升级过程中面临的问题,探索行之有效的对策建议,对吉林省资源型城市的可持续性发展具有重要的现实意义。

煤炭资源型城市生态足迹的空间分布及影响因素分析

煤炭资源的过度开发使得中国煤炭资源型城市陷入“资源诅咒”困境,分析煤炭资源型城市生态足迹的空间特征及路径优化是破解该困境的关键。本文以35个煤炭资源型城市为研究对象,运用能值生态足迹模型及可持续性评价指标测算了煤炭资源型城市的能值生态足迹、生态盈亏、生态效率及生态可持续性,并利用STIRPAT模型对影响因素进行了具体分析。结果表明:1)煤炭资源型城市的能值生态足迹与能源消费量密切相关,且区域差异显著,其中东部地区的能值生态足迹值最大;2)目前多数煤炭资源型城市在生态供需方面具有不平衡性,但从生态效率来看,在技术优化和政策干预之下,资源利用效率逐渐提高;3)从STIRPAT模型的回归结果来看,经济因素和人口因素对煤炭资源型城市的能值生态足迹有显著的正向影响作用,技术水平的提高则抑制了能值生态足迹值的增长。基于以上结论,为煤炭资源型城市的转型和可持续发展提出对策与建议。

城市可持续发展中的节水与水资源管理研究

水资源是人类赖以生存的不可替代的重要资源,随着社会发展步伐的加快,越来越多的人开始注重节约水资源,合理利用水资源。现如今非常缺少的就是可持续发展的资源,且水资源对经济社会的快速发展有着重要的战略意义。水资源是人们生活的必需品,如果没有水资源的支撑和保护,人们将面临生存危机。所以,如何合理利用水资源,并使水资源得到可持续发展尤为重要。基于此,本文针对可持续发展的城市水资源进行分析,并提出节水与水资源管理的相关措施,以供借鉴。

Resources development and tourism environmental carrying capacity of ecotourism industry in Pingdingshan City, China

Background:Pingdingshan City has unique and rich ecotourism landscape.To realize the sustainable development of ecotourism industry in Pingdingshan and simultaneously achieve economic development and environmental protection in the development of ecotourism resources,literature analysis and field investigation methods were used to deeply explore the advantages and problems of Pingdingshan in the process of resources development in this study.Then,the indicator system of environmental carrying capacity of Pingdingshan was established and environmental carrying capacity was calculated to understand the local tourism environmental carrying capacity.Results:The development of ecotourism resources in Pingdingshan has advantages of natural conditions,convenient transportation,and sound infrastructure,but there were also problems,such as insufficient resources protection and unscientific management system.After calculation,it was found that the environmental carrying capacity of ecotourism in Pingdingshan was overloaded.Conclusion:This study reveals the development of the tourism industry in Pingdingshan and provides a basis for the future development of Pingdingshan tourism resources,which is beneficial to the sustainable development of the local ecotourism industry.

基于生态足迹法的铜陵市水资源可持续利用分析

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。

资源枯竭型城市扶助政策能否推动工业企业污染减排?

基于2004—2012年中国工业企业污染排放数据,以SO_(2)排放为例,使用多期双重差分法探讨资源枯竭型城市扶助政策对工业企业污染减排的影响及作用机制。整体而言,资源枯竭型城市扶助政策通过推动企业强化源头防治与末端治理,特别是提升废气治理设施处理能力,能够显著降低SO_(2)排放量。该结果得到平行趋势检验,以及一系列安慰剂检验、稳健性检验的支持。尽管该政策未能使企业转变能源使用结构,但也没有以牺牲经济的方式迫使企业减产。进一步分析发现,该政策对不同产业链位置的企业影响各异,下游企业减排效果更显著,为城市厚植了产业升级的绿色底色。

基于SDGs的徐州市国家可持续发展议程创新示范区建设评价

国家可持续发展议程创新示范区(简称创新示范区)的建设,可为同类城市可持续发展建设起示范作用,更为促进联合国可持续发展目标(SDGs)的实现提供中国实践经验.基于SDGs指标框架,结合徐州创新示范区的资源禀赋和发展基础,利用驱动力压力状态影响响应管理(driver-pressure-state-impact-response-management,DPSIRM)模型,分层次、分类别地选取指标,构建徐州创新示范区本土化的SDGs评价指标体系,开展建设效果评估的实证研究,探究建设过程中的障碍因子.结果表明:徐州创新示范区可持续发展建设水平在2017—2022年的平均年增长率为11.91%,发展潜力充沛;建设中的障碍因子主要在居民收入、资源利用等方面.徐州市的可持续发展建设,可进一步在民生保障、生态治理、乡村振兴、科创集群等领域加大力度.

精明收缩理论视角下的资源枯竭型城市街区规划更新设计——以山东省济南市钢城区为例

随着经济发展,资源型城市在成熟期之后进入衰败期,人口的大量流失与原有土地利用率低,导致城市在衰退道路上更进一步。文章以济南市钢城区为例,总结了资源枯竭型城市的问题。借助精明收缩理论,探讨其与城市规划更新的结合,并使用改良Malthus人口模型和人口统计数据进行济南市钢城区人口收缩验证,依据钢城区现有城市规划蓝图,提出开放街区、弹性控制用地、闲置用地开发、土地功能混合四个方面的可持续规划建议。

资源型城市可持续发展能力评价研究——以江苏省徐州市为例

在高质量发展与“双碳”战略目标的双重背景下,探究资源型城市如何实现绿色低碳转型、实现经济可持续发展具有重要意义。文章构建包含创新驱动、经济高效发展、生态环境改善和民生福祉4个维度的评价指标体系,利用熵权法对徐州市2016—2021年可持续发展能力进行测度与分析。基于研究结论,文章在转变政府职能、重视科技创新、树立绿色理念、坚持以人为本、提供智力支持等方面提出了相关对策建议。