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1.
基于能值理论,结合生态足迹方法,构建能值生态赤字/盈余、渔业足迹强度(D)、社会发展压力指数(I)和经济协调指数(Q)参数评价海岛可持续性,选取典型海岛城市浙江省舟山市作为案例研究。结果显示:2003—2017年舟山能值足迹、能值承载力均呈上升趋势;人均能值生态足迹共增加15.78 hm2,增幅为63.26%;人均能值承载力增加5.20×102 hm2,增幅为82.86%;其中,化石能源用地能值足迹增加最多,社会经济承载力增加最多,而自然承载力却有所下降。能值生态赤字/盈余和经济协调指数不能完全反映区域可持续性,区域渔业足迹强度的不断增加表明当前的渔业经济模式不满足可持续发展要求,社会发展压力指数增大也进一步表明舟山的发展状况偏离了可持续性的轨道。  相似文献   

2.
生态足迹分析法是一种全新的生态承载力计算方法.从生态足迹分析原理出发,分析统计了成都市生物资源消费、碳吸收地、建设用地的生态足迹,得到人均生态赤字为1.183gha,属于较严重生态赤字区的结论.结果表明,该区域对自然的影响超出了其生态承载能力的范围,需要进行调整.  相似文献   

3.
能值—生态足迹是运用能值转换率和区域能值密度建立修正的生态足迹模型,能更加精确地反映区域生态经济发展状况。运用改进的能值—生态足迹模型,探讨了2005—2010年大连市动态生态足迹。模型分析得出,2005—2010年大连能值—生态承载力均低于能值—生态足迹,处于生态赤字状态。6年间生态赤字由2005年的1.51hm2增加到了2010年的2.59hm2,且在生态足迹构成中能源足迹所占比重逐年增大。  相似文献   

4.
京津冀区域生态资产负债核算研究   总被引:2,自引:2,他引:0       下载免费PDF全文
开展生态资产负债核算研究对自然资源资产负债表编制具有重要意义。以京津冀13个地市为例,通过计算生态产品供给价值变化以及生态足迹、生态承载力和生态赤字来分析其生态资产负债变化情况。核算结果表明,2012年京津冀生态产品供给的期初价值为4686亿元,期末价值为4990亿元,当期增加340亿元。京津冀生态足迹和生态承载力分别为4451.06万hm2和1932.68万hm2,生态赤字为3167.8万hm2。生态赤字较大的城市分别是北京市、天津市、石家庄市和保定市,生态赤字较小的城市分别为秦皇岛市和承德市。北京市人口增长过快和资源消耗量过大是生态赤字的重要原因。京津冀区域在发展方面引起的生态资产变化,需要引起高度重视。  相似文献   

5.
本文基于联合国可持续发展行动网络牵头发布的可持续发展目标指数和指示板报告,对中国实现2030年可持续发展目标状况进行了分析,认为尽管中国的SDG指数在全球整体排名中呈逐步上升趋势,但生态环境相关指标总体依然面临严峻挑战:中国与生态环境相关的目标评级偏低;SDG指数和指示板报告采用的评价指标与中国生态环境保护重点工作关联性不强;中国的统计数据难以满足测量2030年议程的数据需求等。为实现联合国倡议的2030年可持续发展目标,中国应打好污染防治攻坚战,提高环境治理水平,加快建立中国本土化评估指标体系,形成SDGs指标年度报告制,建立SDGs实施机制,建立与2030年议程相适应的统计支撑体系。  相似文献   

6.
水资源足迹计算模型研究——以南京市为例   总被引:2,自引:0,他引:2  
在生态足迹理论的基础上探讨了水资源足迹的概念。基于水资源生产力,推导出水资源足迹和水资源承载力的计算公式,用水资源赤字和水资源盈余来衡量水资源利用的可持续性。以南京市为例进行模型实证研究,计算了2003~2007年南京市水资源足迹和水资源承载力,结果表明南京市水资源足迹增长明显,水资源承载力总体平稳,赤字从2004—2007年呈指数增长趋势。实证研究表明模型结果可以在一定程度上衡量生产消费对水资源的影响。  相似文献   

7.
The global agenda of sustainable development (SD) will get a major boost from the successful implementation of the Sustainable Development Goals (SDGs) in developing countries. This requires effective planning and understanding of the SDGs at the national level and developing sound SDG indicators that account for country priorities. Currently, there is no formal SDG indicator set in India, but the process for it is underway. This paper has attempted to propose a unique technique for identifying the most representative indicator set for SD measurement in India based on the SDGs. Considering the needs and preferences of the country, a three‐stage process is proposed to develop the priority indicator set. The application of the approach has been presented for SDG 7, which relates to energy. This is supported with a background on India's SD progress. The proposed technique is simple yet effective, and can be easily replicated by other developing countries.  相似文献   

8.
Electricity consumption is a crucial factor in the environmental pollution process, and therefore, its impact needs to be carefully considered by policymakers. This study investigates the relationship between energy consumption, electricity generation, natural resource utilization, and environmental pollution in BRICS nations, which have a substantial share in global resource consumption. To this end, we employed a novel methodology, namely the Method of Moment Quantile Regression (MMQR), for the time period between 1990 and 2018, within the framework of the Environmental Kuznets Curve (EKC) theory. The study's outcome shows that natural resources and renewable energy are efficacious and significant in curbing environmental degradation among the sample countries. The investigation reveals a positive correlation between electricity consumption and environmental degradation, thereby highlighting this vital resource's role in exacerbating the BRICS nations’ ecological footprint. The findings from this research can provide crucial insights for policymakers to achieve sustainable development and carbon neutrality in these countries.  相似文献   

9.
生态足迹理论是一种定量测度区域可持续发展状态的有效方法。以皖南丘陵山区池州市为例,对其1996-2004年生态足迹和生态承载力进行了计算和分析。结果显示,池州市历年的人均生态足迹不断增加,9年时间增加了37.85%,而人均生态承载力却减少了5.49%。该地区历年人均生态足迹均出现赤字,而且呈增长的趋势;自然资源的利用效率不高以及自然资源供需的非均衡性增长导致生态赤字的出现和持续增长;目前池州市的发展模式已超出了自然生态系统的承载能力,处在不可持续的发展状态,并提出了相应的对策和措施。  相似文献   

10.
应用Wackemagel等提出的生态占用测度方法对芜湖市2004年的生态占用和生态容量进行了分析和计算。利用生态占用分析方法从宏观上度量了芜湖市社会经济发展的可持续性以及生态状况。结果表明,计算年的人均生态赤字为3.757429226hm^2.并提出了相应的对策和措施,为芜湖市建设“生态城市”提供量化依据。  相似文献   

11.
Faced with the task of communicating their combined social, environmental and economic impact, water service providers are seeking to report overall performance in an aggregated way. Such a methodology must be scientifically robust, easily communicated and allow benchmarking of performance while reflecting a transition towards sustainability. In this paper the ecological footprint (EF) is calculated for Sydney Water Corporation (SWC), using input-output analysis and land disturbance in an innovative approach that overcomes problems identified in the original EF concept. This pilot study has allowed SWC to gain some valuable insights into its impacts: SWC's annual EF is about 73 100 ha in terms of land disturbance. Of this, 54 000 ha are projected to become disturbed as a consequence of climate change, with the remainder of 19 100 ha being disturbed on SWC's premises (2400 ha) and on those of upstream suppliers (16 700 ha). Total on-site impacts equal 9300 ha, while indirect land disturb ance contributes 63 600 ha. The EF appears promising as an educational and communi cation tool and may have potential as a decision support tool. However, further research is needed to incorporate downstream impacts into the EF, which would have significant benefits to SWC in terms of assessing and communicating the organization's overall progress towards sustainability.  相似文献   

12.
Adaptive management as applied to tourism policy treats management policies as experiments that probe the responses of the system as human behavior changes. We present a conceptual systems model that incorporates the gap between observed and desired levels of the ecological footprint with respect to biocapacity. Addressing this gap (or 'overshoot') can inform strategies to increase or decrease visitation or its associated consumption in the coming years. The feedback mechanism in this conceptual model incorporates a gap between observed and desired ecological footprint levels of tourists and residents. The work is based on longer-term and ongoing study of tourism impacts and ecological footprint assessments from the SPIN-Eco Project. We present historical tourism and environmental data from the province of Siena, Italy and discuss the use of discrete, static environmental indicators as part of an iterative feedback process to manage tourism within biophysical limits. We discuss a necessary shift of emphasis from certain and static numbers to a process-based management model that can reflect slow changes to biophysical resources. As underscored by ecological footprint analysis, the energy and material use associated with tourism and local activity can erode natural capital foundations if that use exceeds the area's biological capacity to support it. The dynamic, and iterative process of using such indicators as management feedback allows us to view sustainability more accurately as a transition and journey, rather than a static destination to which management must arrive.  相似文献   

13.
上海市2003年生态足迹计算与分析   总被引:15,自引:2,他引:13  
叶田  杨海真 《四川环境》2005,24(3):15-18
本文应用Wackernagel等提出的生态足迹概念和方法对上海区2003年的生态足迹和承载力进行计算和分析。结果表明,2003年上海市人均生态足迹为3.36hm^2,人均生态承载力为0.46hm^2。在此基础上提出了减缓上海市生态赤字的一系列措施,最后对模型的完善作出了展望。  相似文献   

14.
乌鲁木齐市近5年生态足迹与生态承载力研究   总被引:2,自引:0,他引:2  
生态足迹是一种可持续发展程度的生物物理评价方法.阐述了生态足迹的概念和计算模型,设计了城市生态足迹计算方法,对乌鲁木齐市2000-2004年共5年的生态足迹及生态承载力进行了测算.结果表明:各年的生态足迹需求均大于生态承载力,出现了生态赤字现象,该市处于生态不可持续状态.  相似文献   

15.
以《临沂统计年鉴》与临沂市国土资源局提供的数据为依据,计算分析了临沂市近10年来的生态足迹和生态承载力。研究结果表明,1999-2008年临沂市的平均生态足迹为2.4056hm^2/cap,平均生态承载力为1.5828hm^2/cap,平均赤字0.8228hm^2/cap,生态处于不可持续发展状态。此外,临沂市万元GDP生态足迹值总体上呈下降趋势,表明临沂市资源利用效率的提高和经济增长方式的良性转变。  相似文献   

16.
This work is part of a larger project, which aims at investigating the environmental sustainability of the Province of Siena and of its communes, by means of different indicators and methods of analysis. The research presented in this article uses ecological footprint and biocapacity as indicators to monitor the environmental conditions of the area of Siena, thus complementing previous studies carried out using Emergy, greenhouse gases balance and other methods. The calculations have been performed in such a way as to enable a disaggregation of the final results according to the classical categories of ecologically productive land and of consumption, but also according to citizen's and public administration's areas of influence. This information allows us to investigate in detail the socio-economic aspects of environmental resource use. Among the notable results, the Siena territory is characterized by a nearly breakeven total ecological balance, a result contrasting with the national average and most of the other Italian provinces. Furthermore, the analysis has been carried out at different spatial scales (province, districts and communes), highlighting an inhomogeneous territorial structure consisting of subareas in ecological deficit compensated by zones in ecological surplus.  相似文献   

17.
根据生态足迹模型,对济南市2003年的生态足迹、生态承载力和生态赤字进行了实证计算和分析.结果表明:济南处于不可持续发展中.造成生态赤字大的原因是能源结构、对自然资源开发过度和人口密度大.因此,提高土地生产力、严格控制人口数量、建立资源节约型生产和消费体系势在必行.  相似文献   

18.
我国大气细颗粒物污染防治目标和控制措施研究   总被引:2,自引:1,他引:1       下载免费PDF全文
我国面临着严重的细颗粒物(PM2.5)污染问题,PM2.5对人体健康、能见度、气候变化、生态系统等均产生了不良影响。本文旨在提出我国PM2.5污染防治目标和控制措施,为从根本上改善空气质量提供科学依据。首先,本文提出了2020年和2030年我国PM2.5污染防治目标。其次,采用能源和污染排放技术模型,分情景预测了我国未来一次大气污染物排放量的变化趋势。基于情景预测结果和此前研究建立的一次污染物排放与PM2.5浓度间的非线性关系,确定了2020年—2030年与PM2.5浓度改善相适应的全国和重点区域大气污染物减排目标。最后,利用能源和污染排放技术模型,提出了实现大气污染物减排的技术措施和对策建议。研究表明,2030年全国二氧化硫、氮氧化物、一次PM2.5和挥发性有机物的排放量应分别比2012年至少削减51%、64%、53%和36%,氨排放量也要略有下降。对于污染严重的重点区域,必须采取更严格的控制力度。要实现上述减排,应加快能源结构调整,推进煤炭清洁高效集中可持续利用,建立"车-油-路"一体的移动源控制体系,并强化多源多污染物的末端控制。  相似文献   

19.
葫芦岛市生态承载力研究   总被引:2,自引:0,他引:2  
运用生态足迹的理论和计算方法和生态足迹指标对葫芦岛市生态承载力进行了研究。研究表明:2000年~2003年人均生态足迹达2.376 4 hm2,全市生态足迹达642.252 9×104hm2,人均生态承载力0.595 6 hm2,全市生态承载力160.914 7×104hm2,人均生态赤字1.780 8 hm2,全市生态足迹赤字高达481.338 2×104hm2。葫芦岛市生态系统处于人类过度开发利用和压力下,区域经济社会发展处于不可持续状态。生态足迹模型为研究生态环境的承载力提供了一种廉价而快速的计算框架,作为确定葫芦岛市生态承载力的方法与模式,简单、综合而且实用。  相似文献   

20.
重庆市作为长江流域上游唯一的直辖市,在促进城乡统筹改革和区域协调发展大局中具有重要战略地位,其可持续发展任重道远。运用生态足迹方法分析了重庆市2005年~2012年生态足迹的动态变化,并利用生态足迹和生态足迹强度指数等指标对其进行可持续性评估。结果表明:重庆市人均生态足迹由2005年的1.4527 hm2/cap增至2012年的1.9105 hm2/cap,人均生态赤字由0.9887hm2/cap上升至2012年的1.4224hm2/cap;人均生物资源足迹与人均能源生态足迹所占百分比平均为62.78%,37.22%;万元GDP生态足迹由2005年的1.33 hm2/万元降至2012年的0.56hm2/万元;生态足迹强度指数由2005年的3.13上升为2012年的3.91。结合重庆市加快5大功能区建设基础上提出人口控制、优化能源结构和提高环境保护标准、划定重庆市长江上游生态文明区生态红线、调整农业结构布局等方面政策建议。  相似文献   

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