全文获取类型
收费全文 | 240篇 |
免费 | 16篇 |
国内免费 | 45篇 |
专业分类
安全科学 | 1篇 |
环保管理 | 71篇 |
综合类 | 87篇 |
基础理论 | 63篇 |
污染及防治 | 16篇 |
评价与监测 | 15篇 |
社会与环境 | 35篇 |
灾害及防治 | 13篇 |
出版年
2024年 | 1篇 |
2023年 | 9篇 |
2022年 | 4篇 |
2021年 | 10篇 |
2020年 | 7篇 |
2019年 | 8篇 |
2018年 | 19篇 |
2017年 | 14篇 |
2016年 | 8篇 |
2015年 | 21篇 |
2014年 | 11篇 |
2013年 | 27篇 |
2012年 | 6篇 |
2011年 | 15篇 |
2010年 | 11篇 |
2009年 | 14篇 |
2008年 | 16篇 |
2007年 | 14篇 |
2006年 | 17篇 |
2005年 | 12篇 |
2004年 | 9篇 |
2003年 | 10篇 |
2002年 | 6篇 |
2001年 | 5篇 |
2000年 | 4篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1997年 | 1篇 |
1996年 | 2篇 |
1994年 | 3篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1989年 | 1篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1982年 | 3篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有301条查询结果,搜索用时 758 毫秒
251.
我国目前的生活社区污染物治理方式主要是收集后集中处理,这种处理方式存在若干问题,如会影响集中处理场所和转运沿线周边社区的环境质量、不利于处理产物的资源化利用、收集系统的成本较高等。文章提出生活社区污染物宜就地处理,使本社区的污染物不会转移到其他社区,同时便于污染治理产物的资源化利用,而且可以促进环保产业升级,提高农村社区居住环境质量,促进绿色农业的开展,减轻政府环保工作压力。 相似文献
252.
Gracie Verde Selva Natasha Pauli Milena Kiatkoski Kim Julian Clifton 《Local Environment》2013,18(10):931-948
ABSTRACTRegions of high biodiversity often coincide with regions of poverty and conservation can imply economic and social costs for poor resident populations. Environmental compensation is considered a tool to reduce socio-environmental conflict, improve the equity of conservation and promote sustainable development. The intricacies of specific socio-ecological systems may determine how compensation payments are interpreted locally to produce outcomes. This research examines the social perceptions of an ecological fiscal transfer which intends to compensate the local public administration for the substantial costs of conservation in a hotspot of biological and social diversity in the Brazilian Atlantic forest. In this context we explore whether financial compensation (1) influences local perceptions of the conservation regime, (2) contributes towards the reconciliation of human-conservation conflicts and (3) triggers any meaningful socio-economic improvement that would counter the local costs of conservation. Results show that environmental compensation is not widely recognised as effectively benefiting the community. Local authorities consider compensation insufficient to enact a sustainable development agenda. Environmental compensation could play an important role in a policy mix for socially equitable conservation by being explicitly linked to community benefits, especially to fostering local livelihoods. The collaboration of actors operating across multiple governance levels may improve the institutional capacity of local actors to produce effective outcomes. 相似文献
253.
M. R. Trubina 《Russian Journal of Ecology》2006,37(5):306-315
Specific features in the distribution of plant species differing in their attitude toward thermal conditions have been studied in communities of the present-day timberline ecotone on Mount Iremel’ in the Southern Urals. It has been shown that the distribution of such species is characterized by significant spatial nonuniformity. Elevation above sea level, local conditions in habitats located at the same altitudinal level, and specific features of mountain slopes account for 13–84, 5–30, and 0.4–14% of the total variance of test parameters, respectively. The abundance of plants changes nonlinearly along the altitudinal gradient, whereas changes in the species diversity of different plant groups have an almost linear pattern. Marked differences between plant communities with respect to the proportions of species differently responding to changes in thermal conditions have been revealed on all slopes in the upper part of the timberline ecotone, upon transition from the slopes proper to the plateau-like areas of intermontane depressions. 相似文献
254.
Timoshok E. E. Narozhnyi Yu. K. Dirks M. N. Berezov A. A. 《Russian Journal of Ecology》2003,34(2):91-97
Data are presented that concern specific features of primary plant community formation on the moraine complex of the Malyi Aktru Glacier (2190–2300 m a.s.l., Severo-Chuiskii Ridge, Central Altai), which dates from the Minor Glaciation Period. The main stages and rate of primary plant succession in the areas that became free of ice 1–150 years ago are discussed. 相似文献
255.
Roberto Sassi Rosalve Lucas Marcelino Cristiane Francisca Costa 《Environment, Development and Sustainability》2008,10(2):167-178
This paper discusses the misuses of estuaries in Northeast of Brazil and the social contrasts there found. The several kinds
of impacts promoted by capitalist enterprises in one side and by traditional population, who uses estuary areas at another
side, are in complete disagreement with the ethic of sustainable development. Our intention is to demonstrate how these aspects
occur in the River Paraíba do Norte estuary, in the State of Paraíba. Observing the conditions of infrastructure besides the
multiple ways to handle along with the extension of the estuary, we could recognize 59 focus of conflict between the incorrect
use and sustainable mode. Most of the uses concern to traditional artisan fishing, slums and recreational marinas, reflecting
the great social contrast between rich and poor people settled in area studied. Ecological and social implications of these
conflicting uses are discussed and measures to improve the situation are suggested. 相似文献
256.
Communities in Cabo Delgado have a long tradition of using medicinal plants. In Mozambique, rural populations in general are highly dependent on natural resources. One example is the use of surrounding vegetation by people from Cabo Delgado. They use plants for food, handicrafts, construction, as a primary energy source and even for medicine purposes. In this survey, we examined the diversity of plant usage for medicinal purposes by 146 individuals, including adults and youth living in the Cabo Delgado province. This community quoted 16 species of plants, belonging to 13 families. Utilisation by different categories of people based on sex and age was compared and differences were found among some groups. In general, older people show a deeper knowledge of medicinal plants than younger people. Men and women show similar knowledge of medicinal plants. 相似文献
257.
The focus of this paper is to present a discussion of the role of the private sector in response to the need for climate change adaptations. The study, which was conducted through a literature review, investigates the concept of the green economy and climate change, as well as businesses’ commitment to advance climate actions in ways that build resilience in vulnerable communities in developing countries. The paper calls on companies with national, regional, and/or global reach to adopt or develop strategies that improve resource efficiency, reduce greenhouse gas emissions, and reduce the loss of biodiversity. Businesses can accelerate this transition by aligning their investments with climate change adaptation opportunities, and thus, “green” the economy. In addition, green growth could be achieved through tactical public and private investments in mitigating climate change. The paper concludes that the private sector is a key sector in addressing the challenges of vulnerable communities, and it has much to contribute to the planning, development, and implementation of climate adaptation strategies, including sector‐specific expertise, technology, efficiency, financing, and entrepreneurship. Finally, some social conditions and environmental boundaries have been highlighted in this paper to attract the attention of business leaders who are trying to build initiatives and advance climate actions that will reduce socio‐community risks from climate change. Also, comprehensive initiatives and strategies have been recommended to private companies seeking to address climate vulnerabilities. 相似文献
258.
Mountain socio-ecological systems produce valuable but complex ecosystem services resulting from biomes stratified by altitude and gravity. These systems are often managed and shaped by smallholders whose marginalization is exacerbated by uncertainties and a lack of policy attention. Human–environment interfaces in mountains hence require holistic policies. We analyse the potential of the Global Mountain Green Economy Agenda (GMGEA) in building awareness and thus prompting cross-sectoral policy strategies for sustainable mountain development. Considering the critique of the green economy presented at the Rio + 20 conference, we argue that the GMGEA can nevertheless structure knowledge and inform regional institutions about the complexity of mountain socio-ecological systems, a necessary pre-condition to prompt inter-agency collaboration and cross-sectoral policy formulation. After reviewing the content of the GMGEA, we draw on two empirical cases in the Pakistani and Nepali Himalayas. First, we show that lack of awareness has led to a sequence of fragmented interventions with unanticipated, and unwanted, consequences for communities. Second, using a green economy lens, we show how fragmentation could have been avoided and cross-sectoral policies yielded more beneficial results. Project fragmentation reflects disconnected or layered policies by government agencies, which inherently keep specialized agendas and have no incentive to collaborate. Awareness makes agencies more likely to collaborate and adopt cross-sectoral approaches, allowing them to target more beneficiaries, be more visible, and raise more funds. Nevertheless, we also identify four factors that may currently still limit the effect of the GMGEA: high costs of inter-agency collaboration, lack of legitimacy of the green economy, insufficiently-secured smallholder participation, and limited understanding of the mechanisms through which global agendas influence local policy. 相似文献
259.
Nnamdi Egbuniwe 《Journal of the American Water Resources Association》1978,14(2):466-469
ABSTRACT: Villagers living around Nsukka in Eastern Nigeria derive their water supplies during the dry season by subjecting the runoff from laterite soils to five months' sedimentation. This study found that by flocculatig the runoff with wood ash at a dose of 5 g/1, clear water with turbidity of less than 5 JTU, Fe of less than 1 mg/1, Coliform count of zero MPN and Plate count of less than 5 colonies was achieved after three days sedimentation. 相似文献
260.
Gail Krantzberg 《Environment, Development and Sustainability》2006,8(3):413-424
As part of the commitments made by the governments of Canada and the United States in the Great Lakes Water Quality Agreement, Remedial Action Plans (RAPs) are being developed and implemented at Great Lakes Areas of Concern. The Areas of Concern are specific places around the Great Lakes basin ecosystem where environmental quality is degraded to the point that certain beneficial uses (the ability of fish, wildlife and humans to thrive) are impaired. According to the United States and Canada Great Lakes Water Quality Agreement of 1987, the federal governments, in cooperation with state and provincial governments, are to ensure the public is consulted throughout the development and implementation of the RAPs. While not explicit in the Agreement, it is logical to posit that given the effort and investment in environmental improvements, community capacity to sustain the recovery of beneficial uses beyond the life of the RAP should be a product of the RAP. This report examines a case study to test the hypothesis that public ownership of the RAP process can result in the development of community capacity to sustain environmental recovery. The question is, were the principles of the RAP, 10 years after delisting, taken into account to ensure sustainability of growth along the waterfront and within the Town? To arrive at the answer it is important to explore the approach used in the Collingwood Harbour RAP process, and concepts and principles of sustainable cities and towns. This paper provides evidence that such principles are being applied in Collingwood and were nurtured during the development and implementation of the RAP. 相似文献