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宜兴市土地资源的可持续利用 总被引:1,自引:0,他引:1
土地资源是人类赖以生存的基本物质基础和十分宝贵的资源,寻求土地资源的可持续发展已成为当今世界土地科学研究的一个重要课题。宜兴市地处长江三角洲经济区,快速的经济发展已对有限的土地资源产生了较大的影响。文章通过对宜兴市土地资源进行可持续利用的初步研究,分析了土地资源的基本特征和可持续利用中存在的制约因素,提出了可持续利用土地资源的对策。 相似文献
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本文在对莆田县土地资源现状分析的基础上,指出了不利于土地持续利用的限制条件,并根据可持续发展的思想提出了相应的对策 相似文献
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蓬安县地处四川盆地中部偏北,嘉陵江中游。全县幅员面积1334.02km2,总人口6698万人,人口密度为502人/km2,人均耕地0.07ha,是四川省的农业大县。随着经济的发展和人口的增加,太地矛盾突出,因此必须加强对后备土地资源的开发利用,改善生态环境,缓解人地矛盾。1后备土地资源现状1.1后备土地资源的构成蓬安县后备土地资源主要有本利用地、河滩地和低产地。据调查表明,该县未利用土地2.3万ha、河滩地0.sl万ha、低产地2.22万ha、后备上地资源总量达5.l万ha,占幅员面积的朋.24%。l·2后备土地资源的特点蓬安县后备土地资源的特… 相似文献
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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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通过对土地资源可持续利用意义的分析,结合我区土地资源利用的现状,阐述我区土地资源利用面临的各种问题及解决的方法,提出一些急需解决的理论问题及实际工作中面临的难题;同时也提出了一些解决问题的对策和土地可持续利用的思路。 相似文献
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论述了青海地区土地资源利用现状、特征和存在的问题,在此基础上阐述了青南地区土地资源持续利用的方向、原则和措施。 相似文献
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湛江市位于祖国大陆的最南端,地形以平原、台地为主,土地资源利用受台风、干早等自然因素的影响。作者对湛江市土地资源可持续利用的限制因子进行了分析,提出了滋江市土地资源可持续利用的对策和措施。 相似文献
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当前世界各国都面临着土地资源不可持续利用的严峻考验。从土地污染的角度,讨论了土地资源的可持续问题。工业“三废”的排放、城市化进程和土地污染防治法律的滞后是引起土地资源不可持续利用的重要原因。为了防治土地污染,促进土地资源的可持续利用,许多国家都已经建立了相对完善的保护体系。着重介绍了美国、日本、德国等发达国家在治理和防治土壤污染方面的经验,并在此基础上对目前我国土地资源的可持续利用提出了建议。 相似文献
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九华山风景名胜区是山岳型宗教旅游地。通过对九华山风景区的实地调查,总结了该类旅游地的土地利用特点,即统一性和协调性、难以变更性、总量有限性,并进行了土地利用沿革、变更和影响方面的分析。利用层次分析法从生存指标、发展指标、社会指标、环境指标和智力指标5个方面对九华山风景区的土地利用进行了定量讨论,认为九华山风景区土地利用问题现阶段主要集中在九华街景区、花台景区和柯村景区。在此基础上,对九华山风景区土地的可持续利用提出了相应的对策。 相似文献
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Hauke Von Seht 《Local Environment》2013,18(1):23-34
Local environmental policies are sometimes seen as standing in the way of socio-economic progress. Against the background of these concerns, the actual socio-economic impacts of climate protection measures are discussed in this paper. It is structured as follows. First, the concept of primary and secondary effects of climate policies is introduced. Secondly, there is a discussion of financial and economic impacts of local climate policies. Finally, information is given on the consequences of such measures for local energy security and air quality. The main conclusion is that, at least in the field of climate policies, there is a huge potential for local measures that are socioeconomically attractive to local communities. HAUKE VON SEHT, Impactos socio-económicos de políticas del medio ambiente local, un análisis para el campo de protección climática . Las políticas ambientales locales son vistas algunas veces como si estuvieran en la via del progreso socio-económico. En contra de los antecedentes de estos asuntos, los impactos socio-económicos actuales de las medidas de protección climaticas son discutidos en este documento. Está extructurado de la siguiente manera: Primero serán introducidos el concepto de efectos primarios y secundarios de las políticas climáticas. Luego sigue una discusión de impactos económicos y financieros de las políticas climáticas locales, seguido por información de las consecuencias de tales medidas para la calidad del aire y seguridad de energía local. La conclusión principal es que por lo menos en el campo de las políticas climáticas hay un inmenso potencial de medidas locales que son socio-económicamente actractivas a las comunidades locales. 相似文献
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C. J. C. Phillips J. Tind Sorensen 《Journal of Agricultural and Environmental Ethics》1993,6(1):61-73
Cattle production has the potential of being an important component of sustainable agriculture globally. The ability to transform feed not suitable for humans into high-quality food will be of great importance in the long-term for feeding a growing population. Other aspects such as preservation of landscape values and maintenance of rural communities are highly appreciated values, especially in the industrialized part of the world.To exploit the sustainable potential of cattle production systems, problems of pollution (such as ozone destruction, acid rain, and nitrate leaching) and of health and welfare, which are associated with cattle production, are critically reviewed. The possibilities of integrating cattle production with other types of production are evaluated. Cattle can be used for single purposes such as dairy, beef, and draught, but dairy cows can also be used for restricted suckling combining dairy and beef production. In addition a mixture of species makes grazing more efficient, and a combination of cattle and mixed cropping can increase resource efficiency.The possibilities of using organic cattle production systems as prototypes of sustainable cattle production systems are explored. The effects of production constraints which are applied in organic farming systems are studied. The redirection of values and activities in agriculture is a challenge to cattle production research and to traditional research methodologies. 相似文献
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城市土地利用系统是一个典型的“生态-经济-社会”复合系统,对其可持续利用水平进行综合评价涉及到的指标多而复杂。从影响城市土地可持续利用的资源、社会、环境和经济等方面综合考虑,选取了耕地面积、粮食产量和年末总人口等15个相关指标,运用主成分分析方法,对南京市1995-2002年的土地利用状况进行综合评价。结果表明,用主成分分析方法对城市土地可持续利用水平进行综合评价,其评价结果与南京市的实际相符,具有一定的实用性和可操作性。 相似文献
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This article describes the feasibility of researchinto the relation between values of farmers andsustainability for the Dutch Ministry of Agricultureand the Dutch Federation of Agricultural andHorticultural Organisations.Firstly, a theoretical framework describes differentlevels of motivation behind conduct and choices. Itenables exploration and analysis of individualinterviews with small groups of conventional andecological farmers. The aim is to find out what theirbasic convictions regarding nature and sustainabilityare, and to analyze the relation between theseconvictions and the actual choices they make in theirfarming practice. The research shows that for somefarmers, differences in farming practice go back to themotivation level of moral convictions about what is`good farming'. For others, the motivations for aspecific farming practice are more pragmatic or`superficial'. This knowledge can be of significancefor the process of policy making.Secondly, this research demonstrates thatinvestigation into the relation between values andbehavioral choices is possible. The analysis ofinterviews among a small group of farmers gives anidea of the importance of personal values in additionto (and sometimes of more importance than) economicconsiderations. Due to the restricted size of theresearch population, however, these conclusions are oflimited generalizability. Finally, in order to make alarger research agenda possible, the research methodology isevaluated on the basis of scientific criteria. 相似文献
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Abstract This study examined trends in population redistribution and residential land use changes in northeast Scotland during 1988 to 2003. We utilised a geographical information system (GIS) tool to bring together data from interrelated sources and to analyse population settlement and land use changes at detailed spatial scale. This analysis revealed that substantial land conversion had taken place in the region; particularly conversion of agricultural lands to built-up and residential areas. It also drew attention to policy conflicts, discrepancies between policy rhetoric and policy implementations. More specifically, it was shown that substantial farm land conversion had taken place in suburban areas and rural Aberdeenshire with little change in the size of derelict land in Aberdeen City. The reason given for this was that it was costly to rehabilitate and reuse derelict lands and this conflicted with the objective of providing affordable housing in the City region. The implication of this study is that if the declared policy objectives of integrated and sustainable land use and transport policies are to be achieved, then local authorities may need to cooperate to minimise conflicts between economic and environmental objectives. 相似文献