首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   800篇
  免费   23篇
  国内免费   39篇
安全科学   46篇
废物处理   10篇
环保管理   272篇
综合类   167篇
基础理论   128篇
环境理论   2篇
污染及防治   57篇
评价与监测   56篇
社会与环境   111篇
灾害及防治   13篇
  2023年   4篇
  2022年   18篇
  2021年   16篇
  2020年   21篇
  2019年   22篇
  2018年   19篇
  2017年   18篇
  2016年   29篇
  2015年   23篇
  2014年   29篇
  2013年   91篇
  2012年   27篇
  2011年   70篇
  2010年   25篇
  2009年   70篇
  2008年   64篇
  2007年   64篇
  2006年   35篇
  2005年   29篇
  2004年   26篇
  2003年   27篇
  2002年   19篇
  2001年   28篇
  2000年   28篇
  1999年   17篇
  1998年   4篇
  1997年   7篇
  1996年   3篇
  1995年   4篇
  1994年   5篇
  1993年   4篇
  1992年   1篇
  1991年   2篇
  1990年   4篇
  1989年   1篇
  1988年   2篇
  1987年   1篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1982年   1篇
  1972年   1篇
排序方式: 共有862条查询结果,搜索用时 209 毫秒
401.
HDPI: A Framework for Pollution-Sensitive Human Development Indicators   总被引:3,自引:0,他引:3  
The aim of this study is to draw up a framework for pollution-sensitive human development indicators, which we refer to as HDPI. The method used to determine HDPI is based on that used for human development index (HDI) drawn up annually since 1990 by the UNDP. The novelty lies in the incorporation into 'HDI of an environmental factor, measured in terms of CO2 emissions from industrial processes per capita. HDPI penalises those countries which have obtained growth in income at the expense of damaging the environment. A particular case for these indicators is used to draw up a pollution sensitive human development index for 165 countries for which data are available, for the period from 1993 to 1998. The results obtained in this case are analysed.  相似文献   
402.
Drylands (41 and 35% of global land and population, respectively) have the lowest biological productivity of any ecosystem, contain populations with the highest growth rates on earth, and share a significant fraction of global poverty for which desertification is implicated. A global assessment of the available information indicates that the inherent low productivity of drylands, when combined with other adverse factors, can generate poverty. It additionally indicates that while the drylands may exist in a locally stable and sustainable state, this is readily destabilized by non-linear, threshold-crossing transitions to an alternative steady-state leading to desertification, poverty and conflicts. The “desertification paradigm” (human and climatological pressures driving overexploitation of land resources, leading to desertification, poverty and reduced security) is challenged by its “counter-paradigm” (adversity elicits innovation, leading to ingenuous solutions for avoiding desertification). But the latter does not account for the inevitability of continued and increasing pressure on the finite dryland resources, expected to be further exacerbated by a globally increasing need for agricultural land. A companion paper points out that this situation can be avoided by reducing dependence on land productivity, through adoption of “alternative livelihoods.” These livelihoods, while economically advantageous, reduce pressure on land resources.  相似文献   
403.
404.
Abstract: Following creation of the 2010 Biodiversity Target under the Convention on Biological Diversity and adoption of the United Nations Millennium Development Goals, information on status and trends of biodiversity at the national level has become increasingly important to both science and policy. National red lists (NRLs) of threatened species may provide suitable data for reporting on progress toward these goals and for informing national conservation priority setting. This information will also become increasingly important for developing species‐ and ecosystem‐based strategies for climate change adaptation. We conducted a thorough global review of NRLs in 109 countries and analyzed gaps in NRL coverage in terms of geography and taxonomy to determine priority regions and taxonomic groups for further investment. We then examined correlations between the NRL data set and gross domestic product (GDP) and vertebrate species richness. The largest geographic gap was in Oceania, followed by middle Africa, the Caribbean, and western Africa, whereas the largest taxonomic gaps were for invertebrates, fungi, and lichens. The comprehensiveness of NRL coverage within a given country was positively correlated with GDP and negatively correlated with total vertebrate richness and threatened vertebrate richness. This supports the assertion that regions with the greatest and most vulnerable biodiversity receive the least conservation attention and indicates that financial resources may be an integral limitation. To improve coverage of NRLs, we propose a combination of projects that target underrepresented taxa or regions and projects that provide the means for countries to create or update NRLs on their own. We recommend improvements in knowledge transfer within and across regions as a priority for future investment.  相似文献   
405.
Offshore wind power generation represents a chance to supply energy in a more sustainable way; however, the ecological risks associated with the construction and operation of offshore wind farms are still largely unknown. This paper uses the concept of ecological risk for analysing ecological changes during construction of offshore wind farms. “Ecological risk” is defined as the potentially reduced ability of providing ecosystem services. The ERSEM ecosystem model allows assessing ecological risk based on a number of selected variables (integrity indicators) and under the assumption that increased suspended matter concentration during construction of wind farms affects ecosystem functioning. We conclude that ecological risk is adequate to describe the effects of wind farm constructions, although the computation procedure still needs to be refined and the choice of indicators further optimised. In this context, the choice of indicators available in modelling as well as in monitoring time-series may offer the way forward.  相似文献   
406.
Abstract

Population, resources, environment and socio-economic development are four major issues of increasing world attention today and are also four major factors constraining China's development tomorrow. Through an analysis of the international situation and an assessment of China's actual conditions, this article proposes a basic framework and conception of promoting the sustainability of China's population, resources, environment and socio-economic development.  相似文献   
407.
Environmental communication scholarship is critical to the success of sustainability science. This essay outlines three pressing areas of intersection between the two fields. First, environmental communication scholarship on public participation processes is essential for sustainability science's efforts to link knowledge with action. Second, sustainability science requires collaborations across diverse institutional and disciplinary boundaries. Environmental communication can play a vital role in reorganizing the production and application of disciplinary knowledge. Third, science communication bridges environmental communication and sustainability science and can move communication processes away from one-way transmission models toward engaged approaches. The essay draws on Maine's Sustainability Solutions Initiative to illustrate key outcomes of a large project that has integrated environmental communication into sustainability science.  相似文献   
408.
ABSTRACT

This study employs Hugh Fearnley-Whittingstall’s television program, Hugh’s War on Waste, to explore representations of sustainable everyday life and the functions of celebrity environmental advocacy. The analysis is located within broader understandings of the discursive and contested nature of sustainability and the representative functions of environmental celebrities who act as figures of both distinction and equivalence. It discusses Fearnley-Whittingstall within the context of the stable of celebrity chefs, and it demonstrates how Hugh’s War on Waste is an example of the burgeoning televisual genre based on forms of campaigning about food issues. The analysis specifically explores how Hugh’s War on Waste is informed by: narratives of self-transformation where individuals are marshaled into appropriate practices of waste management and sustainability, presentations of the pleasures associated with such practices, and revelations of the networks of food production, distribution and consumption across the contexts of domestic everyday life, farms, supermarkets, and other corporations.  相似文献   
409.
Abstract

Sustainable manufacturing practices have many benefits like cleaner production, resource efficiency along with economic benefits. Sustainable manufacturing practices focuses on four dimensions environment, economy, business and society. The effective deployment of sustainable concepts mostly depends on interaction of these sustainable dimensions. In this study, an attempt on assessment through modelling has been presented. Mostly two factors determine the sustainable performance of organisation: the performance of the criteria is identified under four dimensions (inheritance) and their interaction (interdependency) among each other. Thus, graph theory-based modelling has been done considering both inheritance and interdependency for computing Overall Organisation Sustainability (OOS) score. Finally, permanent scores for matrices obtained from experts’ team have been computed. OOS score for the organisation has been computed and is compared with the scores of hypothetical scenarios. Through the comparison with hypothetically generated practical best and worst-case scenario, insights have been derived.  相似文献   
410.
Abstract

With the advancements in technology and increase in demand for eco-efficient products, manufacturers are focusing on sustainable development of products. Enticing a huge demand over the recent years, sustainable development of Information and Communication Technology (ICT) products are a subject of interest for most practitioners and academicians. A number of factors are found to influence the sustainable development of ICT products. It is necessary to identify the most important factors and determine the dependencies of factors among themselves. In this regard, a case study has been conducted in the context of sustainable development of tablet devices. The most influential factors have been identified from literature and with experts input. The factor dependencies are established using Total Interpretive Structural Modelling (TISM) methodology. MICMAC analysis is used to classify the factors based on their ability to influence other factors. The output of TISM forms the input for MICMAC analysis. From the study, it was found that the factors, ‘Customer pressure’, ‘Government regulations’, ‘Competitiveness’, ‘Organization initiative’ and ‘Technological advancements’ are the most driving factors. Factors ‘Environmental impact’, ‘Energy efficiency’ and ‘Opportunities to upgrade’ were found to be dependent.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号