全文获取类型
收费全文 | 187篇 |
免费 | 0篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 41篇 |
废物处理 | 3篇 |
环保管理 | 25篇 |
综合类 | 91篇 |
基础理论 | 10篇 |
污染及防治 | 7篇 |
评价与监测 | 5篇 |
社会与环境 | 7篇 |
出版年
2020年 | 6篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 2篇 |
2016年 | 5篇 |
2015年 | 3篇 |
2014年 | 4篇 |
2013年 | 6篇 |
2012年 | 7篇 |
2011年 | 14篇 |
2010年 | 10篇 |
2009年 | 11篇 |
2008年 | 3篇 |
2007年 | 9篇 |
2006年 | 17篇 |
2005年 | 6篇 |
2004年 | 21篇 |
2003年 | 10篇 |
2002年 | 10篇 |
2001年 | 5篇 |
2000年 | 12篇 |
1999年 | 6篇 |
1998年 | 5篇 |
1997年 | 4篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 4篇 |
1992年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1980年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有189条查询结果,搜索用时 62 毫秒
91.
The study seeks to demonstrate the potential role that industrial ecology could play towards energy poverty reduction and environmental conservation in Kenya through sustainable charcoal production and consumption. This is achieved through an exploration of the application of the life cycle management (LCM) concept that identifies various opportunities for technological intervention for energy and environmental conservation and reduction of material and energy losses. It also identifies opportunities for income generation at various stages of the product’s life cycle; an aspect critical in poverty reduction in developing countries. The study finds that applying LCM in the charcoal trade in Kenya can deliver social, economic and environmental benefits to developing country communities and should, therefore, be promoted. However, appropriate legal, policy and institutional frameworks must exist in these countries for this to occur. 相似文献
92.
V. A. Chudin L. M. Shcherbakova R. Ya. Maslovskii A. B. Kocheva I. V. Iovlev L. V. Denisenko S. N. Demin A. I. Mamin M. Ya. Chebotina 《Russian Journal of Ecology》2005,36(1):16-20
The results of long-term studies on plutonium distribution in the atmospheric air and plants in the area surrounding the Mayak Production Association in the years 1976–1995 are summarized. Data are presented on the changes in plutonium concentration in the air overtime at some points located in the survey zone and the impact zone of the industrial enterprise as compared to those in the control region. In addition, data on the changes in air plutonium concentration depending on the season and direction of wind are presented; the ratios between plutonium concentrations in the air and the fallout are analyzed.Translated from Ekologiya, No. 1, 2005, pp. 20–25.Original Russian Text Copyright © 2005 by Chudin, Shcherbakova, Maslovskii, Kocheva, Iovlev, Denisenko, Demin, Mamin, Chebotina. 相似文献
93.
Comparison of labour productivities and wage-to-price ratios suggests that the Coal Board's behaviour was not profit-maximizing. This does not make the use of production functions to determine optimal scale very relevant. In particular, the current debates about efficiency and closures cannot be approached solely or mainly from production function analysis. 相似文献
94.
Modeling joint production of wildlife and timber 总被引:2,自引:0,他引:2
Darek J. Nalle Claire A. Montgomery Jeffrey L. Arthur Stephen Polasky Nathan H. Schumaker 《Journal of Environmental Economics and Management》2004,48(3):997
Production of marketed commodities and protection of natural systems often conflict. A focus on only one goal can result in large losses in other goals and may result in inefficient and unsustainable outcomes. In this paper, we develop a method that combines economic and ecological models in a dynamic and spatial analysis to evaluate land use decisions and find cost-effective alternatives for which it is not possible to do better on one objective without harming another objective. The method is demonstrated using timber production and species conservation on a forested landscape over a 100-year planning horizon. Current land use strategies are simulated and compared with cost-effective alternatives. The approach is compared to a static reserve approach, similar to previous studies, and found to produce substantially more efficient management strategies for the case study landscape. 相似文献
95.
对如何搞好工业企业的环境管理进行了探讨,阐述了工业企业的环境管理是一门综合性的科学;工业企业环境管理的主要内容及实施策略;正确处理企业环境管理部门与地方政府环2呆机构的关系,企业内部环境管理与监测部门的关系,企业环境保护与工作与企业生产的关系。 相似文献
96.
王继斌 《中国环境管理干部学院学报》2001,(Z1)
党的十五大把环境保护问题作为基本国策,并强调:“正确处理经济发展同人口、资源、环境的关系”。这表明生态问题已经引起高度重视,建立和发展生态工业已成为当前一项重要任务。本文在介绍生态工业定义的基础上,说明了建立和发展生态工业的必要性及其如何建立和发展生态工业。 相似文献
97.
Property rights and grassland degradation: a study of the Xilingol pasture, Inner Mongolia, China 总被引:1,自引:0,他引:1
The semi-private property rights arrangement called the Household Production Responsibility System (HPRS) was started in the early 1980s in Xilingol pasture of Inner Mongolia (China), and stimulated the development of stockbreeding. The grassland has been degrading severely with increasing numbers of livestock. Based on a historical review of property rights regimes in Inner Mongolia and empirical surveys in Xilingol pasture during 2001-2003, this paper assesses the implementation of HPRS and its impacts on incomes of households as well as the environmental impact on the grassland. It was found that HPRS does not mitigate the "Tragedy of the Commons", instead it has exacerbated the situation. It was also found that co-management of grassland and livestock among a few households presents a sustainable use of grassland to develop livestock breeding. We conclude with the recommendation that small-scale collective property rights systems should be encouraged in Xilingol pasture of Inner Mongolia. 相似文献
98.
以敦煌市城市生活垃圾处理场为例,分别用Scholl Canyon模型、Mgmemcon模型和IPCC推荐的一阶衰减模型(FOD)估算填埋垃圾在运营期及封场后的产气量,对比分析3种模型估算出填埋气在不同时期的产气规律,并据此进行大气环境影响评价,探讨不同产气模型的估算结果在大气环境评价等级、评价内容、大气环境质量现状监测要求和环境影响的范围及程度等方面的差异。结果表明Mgmemcon模型估算的年最大产气量最小,与其它两种方法差异较大;Scholl Canyon模型和FOD模型预测年最大产气量及相应年份一致。合理选择填埋气预测模型,是客观评价垃圾填埋场建设项目大气环境影响的基础,也是项目建设具备环境可行性的重要依据。 相似文献
99.
100.
抓好安全生产责任制工作,是促进安全生产的良好途径,是其它各项安全生产规章制度得到实施的基本保证。介绍了搞好安全检查生产责任制的几点经验。 相似文献