共查询到20条相似文献,搜索用时 171 毫秒
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《Planning》2019,(7)
环境与发展是密不可分的,环境问题具有负外部性,要求企业在追求经济效益的同时,积极承担相应的社会责任。构建环境资源保护审计体系对推动环境资源审计极具理论意义,对助力环境资源保护具有现实意义。本文对环境资源保护审计体系构建的影响因素、涵盖内容等进行探析,从政府、企业两个视角考量环境资源保护审计体系构建的要求与意义,并从我国资源环境保护现状出发,分析构建审计体系存在的问题,结合实际情况提出相应的对策,以期能够通过建立健全环境资源保护审计体系实现社会经济的绿色可持续发展。 相似文献
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《Planning》2013,(22)
随着经济的发展和社会的进步,环境问题日益受到人们的关注和重视。资源浪费、生态环境的恶化和环境污染等问题严重制约着社会的进步和经济的可持续发展,而这与我们对资源的无偿浪费和对环境污染治理问题不进行披露有着一定的关系。当然,人们对于当前企业披露的环境会计信息内容的真实性、可靠性等存在着质疑。所以,提高企业环境会计信息披露的质量,是企业提高自身的经济效益、揭示资源利用情况、了解企业环境污染治理状况、实现经济社会可持续发展的关键所在。 相似文献
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《Planning》2022,(2)
文章对我国在开发旅游资源的过程中造成的许多环境和社会问题,进行了较为深入的评析,并从学术的角度对我国在旅游资源开发过程中存在的开发过度,破坏旅游环境,开发利用率不高,开发层次低等方面的问题提出了警示。 相似文献
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人居环境建设中的地下空间利用 总被引:1,自引:0,他引:1
通过对城市人居环境内涵的分析,从城市地下空间利用的角度,分析了人居环境建设所面临的城市用地、城市交通、资源和能源、城市生态等问题,并深入探讨了地下空间利用对城市人居环境建设的作用。 相似文献
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《Planning》2014,(4)
随着我国经济的高速发展,资源、环境等可持续发展的问题越来越受到人们的关注和重视。初中地理教学是对学生进行人口、资源、环境和可持续发展教育的主渠道。可持续发展教育要培养学生正确的人口观、资源观、环境观,使当代中学生明确我国经济快速发展过程中面临的严峻环境形势及可持续发展的紧迫性和必然性。 相似文献
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《Planning》2013,(11)
随着经济和社会的不断发展,人们开始意识到资源环境问题的重要性。从实际出发,结合资源环境与经济、人口问题的关系,对哈尔滨市资源环境问题进行分析和研究。并从大气污染、水污染和固体废弃物污染三个方面对哈尔滨市污染状况进行定量和定性分析。从管理视角,当前社会资源配置"不公平"和管理创新滞后是引起资源环境问题的最根本原因。只有加强市场调节作用,减少政府对市场的不合理干预,锐意创新,发动公众共同参与生态环境建设才能促进资源环境的可持续发展。 相似文献
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Leonora Charlotte Malabi Eberhardt Harpa Birgisdóttir Morten Birkved 《Building Research & Information》2019,47(6):666-680
ABSTRACTThe building industry is responsible for a large proportion of anthropogenic environmental impacts. Circular economy (CE) is a restorative and regenerative industrial economic approach that promotes resource efficiency to reduce waste and environmental burdens. Transitioning from a linear approach to a CE within the building industry will be a significant challenge. However, an insufficient number of quantitative studies exist to confirm the potential (positive) environmental effects of CE within the built environment as well as a consistent method for characterizing these effects. This paper considers key methodological issues for quantifying the environmental implications of CE principles and proposes a life cycle assessment (LCA) allocation method to address these issues. The proposed method is applied to a case study of a Danish office building where the concrete structure is designed for disassembly (DfD) for subsequent reuse. The potential environmental impact savings vary between the different impact categories. The savings are significantly influenced by the building’s material composition, particularly the number of component-use cycles as well as the service life of the building and its components. The substitution of other material choices (e.g. glass and wood) for the concrete structure exhibited a potential increase in impact savings. 相似文献
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废弃混凝土处理过程的环境影响是辅助废弃混凝土管理决策的重要依据。采用生命周期评价方法,对废弃混凝土再生骨料利用、再生原料利用、基础填料利用和填埋四种方式的环境影响,进行了核算。其中,生命周期影响评价方法采用“中点法”计算生命周期环境影响状况,并通过社会支付意愿的概念将生命周期影响状况结果转化为以货币价值表示的单一环境影响分值。结果表明:在材料替代的前提下,废弃混凝土再生骨料利用的环境影响最低,最能体现废弃混凝土的资源价值。目前西宁市建筑垃圾填埋弃置的收费标准,不能弥补填埋造成的环境影响,亦不足以改善废弃混凝土的再生利用。 相似文献
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作为建筑垃圾废物流的核心组分,废弃混凝土的资源利用呈现显著的外部性特征。定量分析废弃混凝土处理系统的环境影响,是废弃混凝土管理决策的关键。根据对西宁市废弃混凝土处理的调查,构建了三种情形的废弃混凝土处理系统;应用生命周期评价方法,对系统的环境影响进行了量化分析;并采用基于社会支付意愿原理确定的权重因子,用货币价值表示系统的环境影响分值。结果表明:传统情形下,废弃混凝土处理系统的环境影响最大;一般情形和理想情形下,提高系统中再生骨料利用的比重,有助于降低系统的环境影响;在一定运距内,废弃混凝土现场再生处理对系统环境影响的降低不如"再生中心"集中处理有效。 相似文献
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污水严重污染环境,尤其是随着工业的发展污水中的有害物质越来愈多,如果不加以处理就排放到自然环境中会对自然环境造成极大的危害,污染自然环境的就会污染水源影响人类的饮用水的使用,同时还会破坏城市的外观。所以一定要对污水进行处理,使污水对环境的危害减小到最少,并且对污水循环利用,这样的处理才是最好的处理。 相似文献
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《Construction and Building Materials》2010,24(5):832-838
The ceramic industry is known to generate large amounts of calcined-clay wastes each year. So far a huge part is used in landfills. Reusing these wastes in concrete could be a win–win situation. For one hand by solving the ceramic industry waste problem and at the same time leading to a more sustainable concrete industry by reducing the use of non renewable resources like cement and aggregates and avoiding environmental problems related to land filled wastes. This paper examines the feasibility of using ceramic wastes in concrete. Results show that concrete with 20% cement replacement although it has a minor strength loss possess increase durability performance. Results also show that concrete mixtures with ceramic aggregates perform better than the control concrete mixtures concerning compressive strength, capillary water absorption, oxygen permeability and chloride diffusion thus leading to more durable concrete structures. 相似文献
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为系统分析装配构件生命周期中环境-经济影响,基于生态效率方法,构建生命周期评价与生命周期成本分析集成的环境-经济评价系统;并以 1 m 3 预制混凝土叠合板为例,研究其生命周期环境、经济和生态效率。环境影响评价采用中点影响类型,分别使用目标距离法和社会支付意愿计算总环境影响潜值。研究结果表明:现阶段,固体废弃物、矿石资源及化石能源是预制叠合板环境影响的显著指标;环境成本占活动成本的比值为 22.06%;原料开采、生产过程中生态效率最小,说明此阶段对环境影响的贡献最大,分析结果可为进一步进行预制装配式建筑的效益分析提供数据支持 相似文献
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The marble has been commonly used as a building material since ancient times. Disposal of the waste materials of the marble industry, consisting of very fine powders, is one of the environmental problems worldwide today. However, these waste materials can be successfully and economically utilized to improve some properties of fresh and hardened self-compacting concrete (SCC).The aim of this study is to find some relationship between properties of the fresh SCC and the hardened SCC containing marble powder. For this purpose, the mix design approach based on monogram developed by Monteiro and co-workers for normal vibrated concrete was adapted to SCC mixes. In order to obtain this monogram, a series of SCC mixes with different water/cement ratios and water/powder ratios were prepared. Several tests such as slump-flow, T500 time, L-box, V-funnel and sieve segregation resistance were applied for fresh concrete and tests such as compressive strength and split-tension strength at 7, 28 and 90 days were performed for hardened concrete. In conclusion, the mix design method based on monogram can be suggested for preliminary design in SCC. 相似文献
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预拌混凝土行业迅猛发展,混凝土搅拌站刷车剩余大量的浆水和废料,这使混凝土生产产生的废料再利用成了预拌混凝土行业的一个重要课题,对剩余的浆水进行胶砂强度试验和混凝土试验.浆水在采取一定措施后,完全能够回收并作为搅拌用水重新利用,实现浆水零排放,创造了很好的经济效益和社会效益. 相似文献