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1.
The eastern coastal areas of China have high-density population, developed society and economy, and large water pollution emissions. How to reduce water pollution and realize the coordinated development of the economy and environment has become the national focus. Effective environmental policies should consider regional differences in development stage and sustainability performance. Here, we first analyzed the water pollution emissions intensity of the eastern coastal areas of China and the urgency of emissions reduction using 8-year environmental statistics from 2003 to 2010. We characterized development stages of the eastern coastal areas based on the relationships between water pollution emissions intensity and economic development. Further, we built a coordination degree index of economic development and water environment protection as a measure of sustainability. Results show that water pollution emissions intensity decreases as the economy grows from 2003 to 2010. The less-developed regions have a better coordination degree than some more-developed regions, especially those most-developed ones (e.g., Shanghai show more pressures on long-term sustainability than Hebei). The less-developed regions should take advantage of economic growth to invest more advanced environment protection technologies. The more-developed regions need to upgrade its economic structures and municipal infrastructures. Overall, the study provided a comprehensive approach to understand regional difference in development stage and sustainability performance in the eastern coastal region of China as well as the need of different environmental policies to reduce water pollution emissions.  相似文献   

2.
肖长江  欧名豪  李鑫 《生态学报》2015,35(3):696-708
随着生态空间日益萎缩,生态环境不断恶化,经济发展与生态保护矛盾日趋加剧。为了协调经济发展空间与生态保护空间的矛盾问题,促进生态、经济协调持续发展,综合运用景观生态学方法与经济学原理,从"生态-经济"比较优势视角对建设用地指标进行空间优化配置。运用景观安全格局方法构建区域综合生态安全格局,据此计算空间单元的生态重要性指数,采用最小累积阻力模型对区域建设用地开发经济适宜性进行评价,计算空间单元的建设用地开发经济适宜性指数;其次运用生态重要性指数与经济适宜性指数计算建设用地开发比较优势度,以比较优势约束性满足程度为目标函数构建建设用地空间优化配置模型,并用蒙特卡洛(Monte Carol)法对之求解。以江苏省扬州市为例作了实证研究。结果显示,未来扬州市建设用地向南部经济发达地区集中,北部地区主要承担生态保护功能;建设用地配置结果呈现出经济发展与生态保护的错位格局,有助于扬州市生态保护与经济发展。从"生态-经济"比较优势视角提出了建设用地空间优化配置方法,为土地利用规划及生态保护规划编制提供了科学依据。  相似文献   

3.
我国环境功能评价与区划方案   总被引:7,自引:0,他引:7  
我国地区间自然环境和社会经济发展差异悬殊,主体发展功能和环境功能定位各不相同。从环境功能的角度出发,统筹考虑各环境要素,建立基于环境功能区划的环境管理制度具有重要的理论和现实意义。采用RS与GIS技术的空间评价方法,构建了基于环境功能评价和主导因素法的环境功能区划技术体系,在对全国自然生态环境及社会经济发展科学评估的基础上,充分衔接现有的相关区划与规划,明确全国环境功能区划方案。国土面积的53.2%划为自然生态保留区和生态功能保育区,为国民经济的健康持续发展提供生态安全保障;国土面积的46.8%划为食物环境安全保障区、聚居环境维护区和资源开发环境引导区,主要从事农业生产、城镇化和工业化开发以及资源开发利用,是国民经济和社会发展活动的主要集中地区,重点维护人群健康。环境功能区划是改变环境保护目标制定和考核中"一刀切"现象的基础性研究,实行环境分区管理和分类指导,促进实现环境保护管理战略转型。  相似文献   

4.
基于SolVES模型的关中-天水经济区生态系统文化服务评估   总被引:2,自引:0,他引:2  
赵琪琪  李晶  刘婧雅  秦克玉  田涛 《生态学报》2018,38(10):3673-3681
随着人类对于生态系统服务的需求持续增加,生态系统服务的评估逐渐成为研究热点。其中文化服务因其自身的无形性常在研究中被忽视且难以衡量。选取关中-天水经济区为研究区域,应用Sol VES模型并生成5种价值指数地图和价值总和地图来评估该区域生态系统的文化服务。结果表明:审美价值在秦岭山脉和城市公园等区域较高;娱乐价值在娱乐机会较多、交通便利的城市和秦岭北麓区域更高;文化与历史价值集中在历史文化底蕴深厚的城市地区;精神价值在与城市距离较近、有山川分布的森林公园更高。Sol VES模型在大范围区域的应用取得了较好的效果同时为政府进行生态建设和规划提供了科学依据。  相似文献   

5.
海岸带城市生态承载力综合评价——以连云港市为例   总被引:2,自引:0,他引:2  
海岸带是人类聚居和海洋资源开发利用的重点区域。海岸带城市综合生态承载力体现了海岸带生态系统对人类社会经济活动的承受能力,是判断海岸带城市生态系统健康程度和制定海岸带环境管理政策的重要依据。基于"压力(P)-状态(S)-响应(R)"概念模型,以连云港市为例,构建海岸带综合生态承载力评价指标体系,并对2005—2014年间连云港市的综合生态承载力进行评价。结果显示:连云港市海岸带综合生态承载力呈现逻辑斯蒂式波动上升趋势,2005—2007年处于超载状态,2008—2011年基本处于平衡状态,2012年后处于可载状态。对影响承载力的主要因素进行贡献度分析的结果表明:负向指标中,海岸带环境压力大于人口压力;正向指标中,海岸带经济发展水平及科技支撑条件的贡献呈上升趋势,海岸带可利用资源波动下降。结合相关分析和因子分析,得出海岸带环境压力、科技支撑条件及经济发展水平是制约综合承载力的关键因素。研究结果对海岸带地区环境管理及可持续发展政策制定具有重要意义。  相似文献   

6.
Social and economic policy issues relevant to marine aquaculture   总被引:1,自引:0,他引:1  
This paper presents a critical review of current social, economic and policy issues relevant to marine aquaculture (mariculture) in Europe. Tools for identifying the full range of social, economic and environmental issues that influence the sustainable development of mariculture are examined. Under present sectoral approaches to policy, investment, development planning and natural resources management, these issues continue to be treated in isolation. The four main challenges presented in this paper are: (i) how to create a more objective information base with which to assess the social, economic and environmental factors that condition the sustainability of mariculture; (ii) how to provide information from different disciplines in an easy to obtain and compatible format; (iii) how to better integrate knowledge and skills from different disciplines to create a holistic and robust framework for assessing options for mariculture development that integrates social, economic and environmental parameters; and (iv) the effective integration of these assessments into the formulation of policy, investment strategies, spatial plans and natural resources management for coastal areas. Specific issues that need to be addressed within the framework for the integrated evaluation of the economic, social and environmental parameters governing the sustainable development of mariculture include: ? development of more accurate information on the economic, social and environmental benefits and costs of well‐planned and managed mariculture; ? clearer definition of gaps in existing knowledge on factors critical to the sustainable and equitable development of mariculture; ? development of pro‐active consideration of the coastal land and water resource requirements of mariculture as part of strategic economic planning, spatial planning and natural resources management; ? the need for more equitable treatment of mariculture regarding rights of access to sites for development and use of resources; ? development of awareness among decision‐makers, planners, and managers from different sectoral agencies of the contribution that mariculture may make in promoting the sustainable use of coastal ecosystems; ? promotion of a shift in emphasis away from controlling the end use of resources and toward a more balanced approach to coastal development where emphasis is also given to maintaining the health and productivity of coastal ecosystems and the resources they generate that sustain different forms of activity, including mariculture.  相似文献   

7.
刘世栋  高峻 《生态学报》2012,32(10):2992-3000
选择上海滨海地区湿地植被为研究对象,采用典型样地与标准样方相结合的调查方法,从属种和生物多样性角度分析不同旅游开发方式对滨海湿地植被的影响。结果如下:(1)根据滨海旅游区水域开放程度,可将开发类型分为封闭式、半封闭式以及开放式3种,不同旅游开发类型对滨海湿地植被影响程度不同;(2)研究区封闭式相比较半封闭式和开放式旅游开发类型,可以提高区域内物种数量,物种数量增加分别增多33和45种,但本地物种所占比例下降,从70%分别下降到26.26%和21.73%;(3)旅游开发封闭性越强,生物多样性越高,封闭式、半封闭式以及开放式旅游开发区域生物多样性Shanno-Winner指数分别为0.92、1.07和1.51,区域内均匀度指数随封闭性增加而有所降低,Shanno-Winner均匀度指数从最高0.71降到最低0.52;(4)滨海湿地植被对不同类型旅游开发响应不同,封闭度越高,区域内植被响应度越强,封闭式、半封闭式以及开放式植被响应指数分别为2.2、2.0和1.8。  相似文献   

8.
中国不同规模城市可持续发展综合评价   总被引:2,自引:0,他引:2  
孙晓  刘旭升  李锋  陶宇 《生态学报》2016,36(17):5590-5600
城市是一类社会-经济-自然复合生态系统,城市的可持续发展指标体系和评价方法是衡量城市经济、社会、环境状况及可持续发展能力的重要手段。采用全排列多边形综合图示法,以中国277个地级及地级以上城市为研究对象,建立了不同规模城市的可持续发展指标体系,包括经济发展、社会进步、生态环境3类24项指标,对其2000—2010年的可持续发展能力进行了综合评价。研究结果表明:从不同城市规模类型间横向对比分析来看,随着城市规模的增大,经济发展、社会进步和可持续发展综合指数相应提高,生态环境指数却随之下降。从不同规模城市类型内的时间序列分析对比来看,2000—2010年不同规模城市的经济发展、社会进步、生态环境指数各个方面均有显著提高,可持续发展综合指数也伴随着提升。并且,巨大特大型城市在生态环境保护方面提高幅度最大;大型城市在社会进步方面提高幅度最大;中小型城市在经济发展和可持续发展综合能力方面提高幅度最大。但截止到2010年,不同规模城市的可持续发展综合指数均为Ⅲ级,可持续发展能力仅处于一般水平。探究了中国不同规模的城市可持续发展过程中面临的诸多问题,然后提出相应的对策建议,为今后的新型城市化建设提供参考。  相似文献   

9.
厦门市重点保护植物空间优先保护格局研究   总被引:1,自引:1,他引:0  
钱灵颖  黄智洵  杨盛昌  曹文志 《生态学报》2021,41(11):4367-4378
生物多样性保护对维持城市生态系统功能具有重要意义。以39种厦门市重点保护植物为对象,通过物种分布模型MaxENT获得物种潜在分布栅格图,利用空间保护优先化定量工具Zonation软件识别理论上既适宜重点保护植物生存又能够保证景观连通性的区域,获得本地重点保护植物景观保护等级。根据2020年全球生物多样性目标,将景观保护等级最高的17%区域视为多物种空间优先保护区,结合Zonation模型生成的随景观丧失物种加权灭绝风险曲线,将保护等级最高的8%区域划为一级保护区,保护等级在8%-17%范围内的区域划为二级保护区。利用MaxENT模型中的jackknife刀切法发现海拔是对本地重点保护植物分布影响最大的环境因子,优先保护区集中分布于海拔较低的海岸带区域。将优先保护区与自然保护地建设现状、厦门市生态功能区规划、土地利用规划、城市总体规划对比发现厦门市岛外西部、北部的优先保护区得到了较好保护;岛外的西南部及东南部、岛内的东部及南部海岸带的优先保护区被建设用地大规模占用,已纳入自然保护地范围的区域较少,存在大量的海岸带优先保护区保护空缺;岛外东南部的部分优先保护区虽未被占用,但规划中属发展备用地,缺乏生态保护。为避免优先保护区面积的进一步萎缩,应重点关注海岸带区域优先保护区的生态保护,将目前属于发展备用地的优先保护区转划为生态留白空间,针对一级、二级优先保护区分别实施刚性和弹性的生态保育措施,在保护生物多样性的同时,严控对海岸带区域优先保护区的进一步开发利用,协调优先保护区内保护与开发利用间的关系。  相似文献   

10.
广西北部湾沿岸地区生态系统服务价值变化及其驱动力   总被引:5,自引:0,他引:5  
罗盛锋  闫文德 《生态学报》2018,38(9):3248-3259
掌握生态系统结构及其功能的时空变化规律是开展科学生态系统管理的重要前提,如何衡量人类在满足自我需求的同时对自然资源和生态系统的改变程度是当前研究值得关注的一个问题。伴随北部湾经济区的崛起,区域经济发展与生态保护的矛盾日益凸显,海水倒灌、植被退化和土地沙化等现象加剧,生态系统服务可持续供给受到严重威胁。以时序遥感数据为基础,分析北部湾沿岸地区生态系统时空演变,评估生态系统服务价值时空变化规律及其驱动因素,为区域生态系统管理提供科学基础。研究显示:1999—2014年,城市点状、离散扩张使城市生态系统面积显著增加,破碎化程度加剧;环境恶化给湿地生态系统带来毁灭性的破坏,红树林不断消失,破碎度增加;林地和果园构成的森林生态系统面积有所增加,而耕地面积急剧缩减。生态系统构成中,森林生态系统服务价值最高,约占研究区总价值的50%,且呈增长趋势;生态系统服务构成中,除食物生产、气体调节和维持养分循环价值有所减少外,其他类型生态系统服务价值均呈增长趋势。驱动力分析表明,综合城镇化率是影响北部湾沿岸地区生态系统服务价值变化的重要驱动因素,说明区域生态系统服务与社会经济发展极为相关,合理调控经济结构可有效提升区域生态系统服务价值。  相似文献   

11.
秦青  刘晶茹  于强  马奔  谭宏利  解林红  温亚利 《生态学报》2020,40(20):7255-7266
大熊猫是生态保护的旗舰物种,保护大熊猫及其栖息地具有重要的示范作用和科学价值。中国致力于建设以国家公园为主体的自然保护地体系,分析大熊猫保护地生态安全,为建立大熊猫国家公园提供理论依据,具有重要意义。以四川省为例,选取被划入或将来可能被划入大熊猫保护地的典型县域,构建大熊猫保护地生态安全评价指标体系,采用熵权法、层次分析法进行综合评价,并结合空间相关性分析,从时间和空间两个维度对大熊猫保护地生态安全状况进行时空动态分析。结果表明:(1)2003-2017年四川省大熊猫保护地生态安全综合指数呈波动性上升趋势,生态环境改善显著,但仍有部分县域出现不同程度的环境恶化现象。(2)各县域生态安全状况表现出较强的差异性,并且相邻县域生态安全指数存在显著的空间正相关性和空间集聚性。(3)大熊猫保护地生态安全与周边社会经济发展之间矛盾依然尖锐,相邻县域之间的经济发展和生态保护状况相互影响的作用明显,需联合治理,共同促进生态平衡,提高大熊猫及其栖息地保护效果。  相似文献   

12.
环渤海沿海地区土地承载力时空分异特征   总被引:15,自引:4,他引:11  
于广华  孙才志 《生态学报》2015,35(14):4860-4870
沿海地区是中国未来社会经济发展的重点区域,近年来沿海地区人地矛盾越来越突出,研究沿海地区土地承载力具有重要意义。针对以往评价中的不足,采用韦伯-费希纳定律确定指标评价标准;利用D-S证据理论进行主客观综合权重的计算,运用可变模糊集理论及模型对土地承载力进行综合评价,并以环渤海沿海地区进行实例分析。研究结果表明,2000—2011年,环渤海地区土地承载力整体呈持续上升趋势,但空间分布差异显著,天津、唐山、大连、盘锦、青岛、烟台、东营、威海土地承载力相对较高,锦州、营口、秦皇岛、滨州、潍坊、日照属于中等水平,沧州、丹东、葫芦岛四市土地承载力相对较低。可变模糊评价模型应用于土地承载力评价,计算简便,可操作性强,评价结果可信度高。  相似文献   

13.
The paper presents an overview of the existing indicators of development and positions them within the environmental, economic, and social dimensions of sustainable development. It presents empirical evidence of sustainable livelihood security index (SLSI) at the district level in Gujarat. SLSI is a composite index having three component indices, i.e. the ecological security index (ESI), the economic efficiency index (EEI), and the social equity index (SEI). It finds that the SLSI based on its simplicity and flexibility, is one of the most comprehensive yet simple indices for measuring long-term livelihood security in rural areas. For instance, the eastern districts of the state, dominated by scheduled tribes’ population have very low EEI and SEI rankings, although they have high ESI ranking. These districts also have very low ranks in gender development index, education index, health index and housing index. Thus, the SLSI not only identifies the general priorities for development but also the nature and types of policies to be pursued in each study unit to enhance livelihood security. The SLSI facilitates consensus among different partisan groups like economists, environmentalists, and egalitarians by balancing their mutual concerns, could provide guidelines for achieving sustainable development. It can function as an educational and a policy tool for promoting a holistic perspective among planners, administrators, and development workers.  相似文献   

14.
空间相关视阈下浙江省县域生态文明建设空间格局分析   总被引:1,自引:1,他引:0  
夏四友  文琦  许昕  刘笑杰  宋永永 《生态学报》2021,41(13):5223-5232
生态文明是社会文明的重要表征,是经济、政治、文化、社会的重要组成部分。利用"2017年浙江省生态文明建设年度评价结果公报"的指标数据,对绿色发展指数及6个分维度指数的空间格局进行研究,探讨空间相关视域下浙江省县域生态文明建设的空间格局。结果表明:(1)浙江省各市域绿色发展指数及分维度指数的差异明显,杭州市的绿色发展指数最高,而嘉兴市的绿色发展指数处于最低水平。(2)浙江省绿色发展指数存在空间自相关特征,但Global Moran''s I并不高。在分维度指数中,除资源利用外,环境治理、环境质量、生态保护、增长质量和绿色生活都存在明显的空间自相关性。(3)发达县域间存在资本、人才和技术的流动,有足够的经济实力和技术投入到环境污染治理和防止、生态环境保护和修复中,形成绿色发展的扩散互溢区。而欠发达县域以资源环境为代价的不持续发展方式对提高绿色发展指数具有明显的制约作用,呈现极化效应和低速增长态势。(4)研究认为可利用空间相关性发挥县域间生态文明建设的带动作用,实现生态文明建设整体水平的提高。一方面要构建跨区域绿色发展的协作机制,落实跨区域的生态补偿机制;另一方面要积极发挥试点和示范的带动作用,产生正外部性溢出效应。  相似文献   

15.
海岸带是陆地和海洋之间的生态过渡带,生态保护和开发利用矛盾突出。而生态与环境监测是海岸带环境污染治理与生态保护的重要基础,是海岸带可持续发展的关键。在分析目前海岸带监测存在的问题基础上,以九龙江-厦门湾为研究对象,通过遥感和生物监测、标准衔接、采样和分析仪器以及在线监测系统研发等技术集成,构建了从污染源、环境质量到生态系统以及景观层次的一体化综合生态监测体系。该体系基于常规监测,建立了基于生态系统的河流-河口(近海)生物、水体和沉积物的生态环境一体化监测;探索制定了适用于九龙江河口不同盐度区的营养盐基准/标准系列推荐值;基于营养盐污染入海总量控制目标,构建了河流入海污染物通量在线监测系统;通过遥感监测和实地调查相结合,实现了从关键生态系统到景观的海岸带综合生态监测。基于综合监测体系,构建了兼顾陆海的河口湾区域生态安全评价指标体系,实现区域生态系统可持续发展或生态安全的动态评价。因此,通过上述系统的集成,成功实现了从陆域(流域)到河口(近海)一体化综合生态监测,可为海岸带地区的生态质量改善、污染防治、主要污染物排放总量控制、生态安全评价、生态保护与修复等提供科学支撑。  相似文献   

16.
Different coastal areas possess different pollution risks and ecosystem service values. The management strategies in these areas also differ. With limited environmental funds available, it is necessary to conduct in-depth study of pollution risks and ecosystem service values for developing marine conservation and management strategies. This paper proposes a management method that combines marine pollution risks and ecosystem service values to identify the management priorities of different sites, which are used to determine the appropriate management strategies. The management priorities of different bays in China's Bohai Sea were determined, and management strategies were recommended. The method can be used to determine effective management strategies for oceans around the world, especially in developing countries with limited environmental protection funds.  相似文献   

17.
Within the past two decades sustainability has become a key term in emphasizing and understanding relationships between economic progress and the protection of the environment. One key difficulty is in the definition of sustainability indicators based on information at different spatial and temporal scales. In this paper we formalize statistical models for the assessment of sustainability impact indicators using a public data source provided by the Austrian government. Our application example is the Eisenwurzen region in Austria, an old and famous mining area within the Alps. The total area covers 5.743 km2 and includes 99 municipalities. In our study we define 15 impact indicators covering economic, social and environmental impacts. For each of the impact indicators we develop response functions using the available public data sources. The results suggest that the available data are an important source for deriving sustainable impact indicators within specific regions. The presented approach may serve as diagnostic tool to provide insights into the regional drivers for assessing sustainability indicators.  相似文献   

18.
倪尧  岳文泽  张云堂  吴次芳 《生态学报》2013,33(19):6418-6425
综合运用社会经济统计与环境监测数据,揭示了"世博"背景下,上海城市内部经济发展和环境保护关系的耦合演化特征。结果发现,2002-2010年各区县经济差异明显扩大。在总体差异中,主要表现为主城区内部和郊区内部差异,主城区和郊区间的差异较小;2006年后,主城区内部差异贡献进一步增加,郊区内部差异贡献开始下降,但各区环境质量有明显改善。2006年和2010年经济环境耦合关系都满足环境库兹涅兹曲线规律,但2010年拐点处的经济水平与环境质量都明显优于2006年,各区县分布格局差异较大。研究揭示了经济结构调整与全球化、多层次城市规划体系以及世博会影响是区域经济差异及环境库兹涅茨曲线演化的主要驱动因素。建议快速发展的城市应该加速产业转型升级、发挥产业布局与城市规划作用、抓住举办城市重大活动机遇,优化经济环境耦合关系,实现城市的可持续发展。  相似文献   

19.
We examine the processes of collective management of water resources for agriculture within the wider context of environmental change in a coastal region of Bangladesh. We argue that while the formal propositions of rational-actor theories (such as the Institutional Analysis and Design Framework) help to identify the potential constraints to collective action (e.g., the free rider problem), these propositions need to be seen in the substantive social context of any given case. Findings show that the pattern of collective water management is crucially dependent on the individual economic incentives for participation as well as the social structures and norms that influence the behaviour of different classes of actor, including those with conflicting economic incentives. By examining the substantive processes of negotiation and decision-making around specific problems of water management, we are able to identify the contingent set of factors that shape the responses of different actors, enabling or constraining desirable collective outcomes.  相似文献   

20.
While breeding indexes exist globally to identify candidate parents of the next generation, fewer tools exist that provide guidance on the expected monetary value of young animals. The objective of the present study was therefore to develop the framework for a cattle decision-support tool which incorporates both the genetic and non-genetic information of an animal and, in doing so, better predict the potential market value of an animal, whatever the age. Two novel monetary indexes were constructed and their predictive ability of carcass value was compared to that of the Irish national Terminal breeding index, typical of other terminal indexes used globally. A constructed Harvest index was composed of three carcass-related traits [i.e., 1) carcass weight, 2) carcass conformation and 3) carcass fat, each weighted by their respective economic value] and aimed at purchasers of animals close to harvest; the second index, termed the Calf index, also included docility and feed intake (weighted by their respective economic value), thus targeting purchasers of younger calves for growing (and eventually harvesting). Genetic and non-genetic fixed and random effect model solutions from the Irish national genetic evaluations underpinned all indexes. The two novel indexes were formulated using three alternative estimates of an animal's total merit for comparative purposes: 1) an index based solely on the animal's breed solutions, 2) an index which also included within-breed animal differences, and 3) an index which, as well as considering additive and non-additive genetic effects, also included non-genetic effects (referred to as production values [PVs]). As more information (i.e., within breed effects and subsequently non-genetic effects) was included in the total merit estimate, the correlations strengthened between the two proposed indexes and the animal's calculated carcass market value; the correlation coefficients almost doubled in strength when total merit was based on PV-based estimates as compared to the breed solutions alone. Including phenotypic live-weight data, collected during the animal's life, strengthened the predictive ability of the indexes further. Based on the results presented, the proposed indexes may fill the void in decision support when purchasing or selling cattle. In addition, given the dynamic nature of indexes, they have the potential to be updated in real-time as information becomes available.  相似文献   

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