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以黑龙江垦区土地资源利用为例,运用统计分析方法,结合土地利用变化幅度和土地利用动态度等分析指标,对黑龙江垦区土地利用现状与动态变化进行分析。在此基础上,提出了黑龙江垦区土地利用中存在的主要问题:耕地面积总量增加,但人均耕地面积下降;土地资源利用效益有待提高;土地质量逐年下降,生态环境趋于恶化;部分农场场址道路建设用地过大,土地浪费现象严重;土地后备资源日益匮乏,开发整理复垦难度大等5个方面,并提出了相关的对策建议。 相似文献
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城市土地利用评价指标体系构建 总被引:22,自引:0,他引:22
在阐述指标体系构建原则的基础上,采用目标法建立了由三大主目标、八大子目标和系列评价指标构成的城市土地利用评价指标体系。其中三大主目标是指城市土地利用的高效化、集约化与协调化;八大子目标是指人地资源关系合理化、土地利用集约化、土地利用结构合理化、土地利用高效化、土地利用与人口发展协调化、土地利用与经济发展协调化、土地利用与环境发展协调化、城郊土地利用协调化。 相似文献
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通过对垫江县目前土地资源利用特点,存在问题及其原因的详细分析,结合垫法实际,提出了垫江县土地资源可持续利用分区的设想,针对各区不同的土地利用特点,提出了土地持续利用方向及主要措施。 相似文献
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2000年安徽省土地利用结构优化研究 总被引:5,自引:0,他引:5
本文分析了安徽省土地利用的现状与问题,揭示了各业用地之间的内在关联;并采用定性与定量相结合的方法,提出了2000年该省土地利用结构优化调整的方案和合理利用土地资源的对策。 相似文献
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贵港市土地利用动态变化分析及用地预测 总被引:3,自引:0,他引:3
以城市为中心的区域土地是土地资源中资产效益最高的一部分,是人类利用土地影响最为深刻的土地类型。在分析土地利用现状变更调查数据的基础上,应用各类土地利用动态变化模型对贵港市的土地利用动态变化进行分析,并运用灰色系统预测模型对该区域各地类的土地利用时空演变进行了预测,最后提出相应的优化土地利用结构的建议。 相似文献
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从土地投入强度、土地利用效益、土地利用强度和土地利用可持续性方面构建了城市土地集约利用宏观评价指标体系.采用多因素综合评价法对重庆市都市区建设用地集约利用水平进行了评价,并根据土地利用集约度差异对其进行了聚类分析,指出土地利用投入强度、产出效益水平仍需进一步提高,揭示了城市土地集约利用程度与经济发展之间存在明显的相关性,针对性地提出了相关对策. 相似文献
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本文在论述土地使用权出让和土地利用总体规划内涵的基础上,研究了两者作用和反作用的关系,提出了两者最终目标一致性的观点,并探讨了实践上相关的问题。 相似文献
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Ram M. Shrestha S.C. Bhattacharya Sunil Malla 《Journal of environmental management》1996,46(4):359-372
This paper presents a review of energy use in 22 selected countries of Asia and estimates the anthropogenic emission of sulphur dioxide (SO2) for the selected countries, both at national and disaggregated sub-country regional levels. The paper also makes a comparative assessment of the Asian countries in terms of SO2emission intensity (i.e. emission per GDP), emission per capita and emission density (i.e. emission per unit area). Total SO2emission in the region was estimated to be about 38 million tons in 1990. Five countries, China, India, South Korea, Japan and Thailand, accounted for over 91% of the regional SO2emission. Coal use had the dominant share (81%) of the total emission from the region. Among the economic sectors, industry contributed the largest share (49%) to the total emissions of the selected countries as a whole, followed by the power sector (30%). These findings suggest the need for mitigation strategies focussed on the industry and power sectors of the major emitting countries in Asia. 相似文献
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Anne-Michelle Slater Andrew Gemmell 《Journal of Environmental Planning and Management》1999,42(6):861-874
This study considers the planning system in Scotland as it relates to waste management. It examines local, structure and waste disposal plans in nine areas to identify links between the two systems. Initial findings reveal that statutory plans have limited influence on the location of new waste facilities and the reasons for this are explored. The European Union now requires the preparation of a National Waste Strategy (NWS) based on the principle of the waste hierarchy. The research concludes that effective waste management requires a close relationship between the NWS and development plans. 相似文献
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JOHN E. JANKOWSKI JR. 《Natural resources forum》1983,7(2):145-160
This article compares, contrasts and analyzes energy use data in five worldwide manufacturing subsectors. It documents the differences in energy input/production output ratios among industries and among countries, and outlines areas of opportunity for implementing energy conservation measures. Special attention is given to the energy use record in developing countries and to assessing their particular problems and limitations in reducing industrial energy demand.
Cet article établit des comparaisons, fait ressortir des contrastes et présente une analyse des données sur l'utilisation de l'énergie dans cinq sous-secteurs industriels mondiaux. Il explique les différences qui existent dans le taux de rendement relatif aux entrées-sorties dans les industries et les pays. Il désigne des secteurs où peuvent s'appliquer des mesures de conservation d'énergie. Une attention toute particulière est accordée aux tendances d'utilisation de l'énergie dans les pays en développement et à revaluation des problèmes et limitations qu'ils confrontent à réduire la demande d'énergie industrille.
Este artículo analiza comparativamente la información sobre uso de energía en cinco ramas industriales. Documenta los ratios insumo/producto en varios países e indica las oportunidades para establecer medidas para la conservacón de energa. Se da especial atención a los patrones de uso de energía en los países en desarrollo y evalúa los problemas particulares y limitaciones para la reducción del uso de energía en la indústria. 相似文献
Cet article établit des comparaisons, fait ressortir des contrastes et présente une analyse des données sur l'utilisation de l'énergie dans cinq sous-secteurs industriels mondiaux. Il explique les différences qui existent dans le taux de rendement relatif aux entrées-sorties dans les industries et les pays. Il désigne des secteurs où peuvent s'appliquer des mesures de conservation d'énergie. Une attention toute particulière est accordée aux tendances d'utilisation de l'énergie dans les pays en développement et à revaluation des problèmes et limitations qu'ils confrontent à réduire la demande d'énergie industrille.
Este artículo analiza comparativamente la información sobre uso de energía en cinco ramas industriales. Documenta los ratios insumo/producto en varios países e indica las oportunidades para establecer medidas para la conservacón de energa. Se da especial atención a los patrones de uso de energía en los países en desarrollo y evalúa los problemas particulares y limitaciones para la reducción del uso de energía en la indústria. 相似文献
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简述了犀牛在中国灭绝的原因,介绍了犀牛角的利用价值,针对目前犀牛在中国的状况,提出了犀牛保护及犀角持续利用的建议。 相似文献
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Yvonne Rydin 《Journal of Environmental Planning and Management》1998,41(6):749-765
Just as it is now widely accepted that the planning system has a role to play in achieving sustainable development, so the concept of environmental capacity has achieved increasing prominence as a means of realizing that role. This paper considers the debate on the concept of environmental capacity, reviewing both the mainstream model and Jacobs' more nuanced social constructionist model. In doing so, it raises concerns about the appropriateness of regulatory policy tools and the implications for the distribution of environmental and other impacts. The discussion highlights the potential for using the planning system to promote change rather than resist it. In doing so, it suggests the need to consider a wider range of policy tools to achieve change at the local level and to clarify the dimensions of sustainable development that local planning can contribute to. 相似文献
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In her recent Counter-Reply to my views, Evelyn Pluhar defends her use of literature on nutrition and restates her argument for moral vegetarianism. In his Vegan Ideal article, Gary Varner claims that the nutrition literature does not show sufficient differences among women, men, and children to warrant concern about discrimination. In this response I show how Professor Pluhar continues to draw fallacious inferences: she begs the question on equality, avoids the main issue in my ethical arguments, argues from irrelevancies, misquotes her sources, equivocates on context, confuses safety with morality, appeals to fear, confuses correlation with cause, fails to evaluate scientific studies, draws hasty conclusions from insufficient data, ignores a large amount of data which would call her views into question, does not follow good scientific or moral argumentation, objectionably exceeds the limits of her expertise, and resorts to scapegoating. I also argue that Professor Varner fails to make his case because he offers virtually no evidence from scientific studies on nutrition, relies on outdated and fallacious sources, makes unsupported claims, ignores evidence that would contravene his claims, draws hasty conclusions based on weakly supported hypotheses rather than facts, employs a double standard, appeals to ignorance, does not evaluate arguments from his sources, and makes anad hominem attack on a respected nutritionist when his focus should be on evaluating the evidence and arguments from the scientific studies themselves. Neither Varner nor Pluhar have responded sufficiently to the real issue in my arguments, that of discrimination and bias in the vegan ideal. 相似文献