全文获取类型
| 收费全文 | 608篇 |
| 免费 | 11篇 |
| 国内免费 | 3篇 |
专业分类
| 安全科学 | 9篇 |
| 废物处理 | 61篇 |
| 环保管理 | 77篇 |
| 综合类 | 62篇 |
| 基础理论 | 114篇 |
| 环境理论 | 2篇 |
| 污染及防治 | 172篇 |
| 评价与监测 | 67篇 |
| 社会与环境 | 53篇 |
| 灾害及防治 | 5篇 |
出版年
| 2024年 | 12篇 |
| 2023年 | 20篇 |
| 2022年 | 54篇 |
| 2021年 | 41篇 |
| 2020年 | 25篇 |
| 2019年 | 18篇 |
| 2018年 | 49篇 |
| 2017年 | 29篇 |
| 2016年 | 31篇 |
| 2015年 | 26篇 |
| 2014年 | 35篇 |
| 2013年 | 50篇 |
| 2012年 | 21篇 |
| 2011年 | 30篇 |
| 2010年 | 16篇 |
| 2009年 | 19篇 |
| 2008年 | 20篇 |
| 2007年 | 22篇 |
| 2006年 | 25篇 |
| 2005年 | 14篇 |
| 2004年 | 14篇 |
| 2003年 | 19篇 |
| 2002年 | 6篇 |
| 2001年 | 12篇 |
| 2000年 | 3篇 |
| 1999年 | 3篇 |
| 1998年 | 2篇 |
| 1997年 | 1篇 |
| 1994年 | 1篇 |
| 1989年 | 1篇 |
| 1985年 | 1篇 |
| 1981年 | 1篇 |
| 1969年 | 1篇 |
排序方式： 共有622条查询结果，搜索用时 0 毫秒
591.
de Abrantes R de Assunção JV Pesquero CR da Nóbrega RP Bruns RE 《Journal of the Air & Waste Management Association (1995)》2011,61(12):1344-1352
The exhaust emissions of 17 polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) were investigated in two spark-ignition light-duty vehicles, one gasohol-fueled and a flexible-fuel one fueled with hydrated ethanol. Gasohol is a mixture of gasoline and 22% ethanol. The influence of fuel type and quality, lubricant oil type, and use of fuel additives on the formation of these compounds was tested using standardized U.S. Federal Test Procedure (FTP)-75 cycle tests. The sampling of the PCDD/Fs followed the recommendations of a modified U.S. Environmental Protection Agency (EPA) Method 23 (www.epa.gov/ttn/ emc/promgate/m-23.pdf) and the analysis basically followed the U.S. EPA Method 8290 (http://www.epa.gov/osw/ hazard/testmethods/sw846/pdfs/8290a.pdf). Results showed that emission factors of PCDD/Fs for the.gasohol vehicle varied from undetected to 0.068 pg international toxic equivalency (I-TEQ) km(-1) (average of 0.0294 pg I-TEQ km(-1)), whereas in the ethanol vehicle they varied from 0.004 to 0.157 pg (I-TEQ) km(-1) (average of 0.031 pg I-TEQ km(-1)). In the gasohol-powered vehicle, the use of fuel additive diminished the emission of Octachlorodibenzo-p-dioxin (OCDD) significantly, whereas in the ethanol vehicle no significant associations were observed between the investigated variables and the emissions. 相似文献
592.
Miguel Pina e Cunha Armnio Rego Joo Vieira da Cunha 《Corporate Social Responsibility and Environmental Management》2008,15(6):311-321
In an article published in 1995, Paul Shrivastava coined the notion of an ecocentric management paradigm. The ecocentric paradigm provided an integrated and holistic view of the organization at peace with the natural environment. This paper updates the idea of ecocentricity and enriches it with facts and fears that have emerged since then. We suggest that Shrivastava's original formulation was an improvement of the industrial paradigm, advance an alternative reconceptualization of ecocentricity and discuss some of the possible obstacles to the emergence and adoption of ecocentric management. Copyright © 2007 John Wiley & Sons, Ltd and ERP Environment. 相似文献
593.
Alexandre Marco da Silva; 《环境质量管理》2024,34(2):e22333
The sedimentometric dynamics are part of the environmental dynamics of a watershed and are vulnerable to local environmental changes. Hence, in this study, we (i) investigated the sedimentometric dynamic in three watersheds, (ii) proposed innovative mathematical equations for enhancing the ability to predict the sediment delivery ratio (SDR), and (iii) proposed alternatives to restore the sedimentological equilibrium. In three watersheds, we collected information concerning physiography and land use. Also, for 2 years, water samples and hydrological and sediment-related data were systematically collected. We then computed a dataset on hydrosedimentology, especially the SDR. We elaborated two mathematical models that predict the SDR, considering the high relation between SDR and the elements of the watershed that go far beyond the “catchment area” information, normally used as basic and unique information for computing SDR values. We also proposed alternatives for environmental control and/or recovery. Such alternatives are based on the sedimentometric dynamics of the watersheds and their vulnerability to degradation. The execution of these actions is vital to provide a local sedimentometric balance and, among other gains, to recover/conserve the environmental quality of the streams and rivers that form the river network of the watershed. 相似文献
594.
Patrícia Anjos Bittencourt Barreto-Garcia;Francielle da Silva Lopes;Paulo Henrique Marques Monroe;Alessandro de Paula;Kyegla Beatriz da Silva Martins;Marcio Renato Nunes; 《环境质量管理》2024,34(2):e22354
Recent studies have proven the sensitivity of soil organic carbon (SOC) in responding to variations imposed by tropical forest fragmentation, which may reflect changes in both its quantity and quality. Despite this, studies evaluating soil carbon fractions as an edge effect indicator are still non-existent. We developed this work asking: How do the oxidizable fractions of soil organic carbon (OFSOC) respond to the edge effect in fragments of semi-deciduous seasonal forest? Is this response influenced by the size of the forest fragment? The study was conducted in Vitória da Conquista, Bahia, Brazil, in three forest fragments with different sizes. Thus, three sampling sections were defined in each fragment: edge (0–10 m), transition (40–50 m), and interior. Soil samples were collected at a depth of 0–10 cm. The SOC was divided into three fractions (LC—labile carbon, MLC—moderately labile carbon, and LLC—low labile carbon), adopting the chemical method based on oxidation degrees. Reductions in the SOC (28.2%), LC (17.4%), and MLC content (66.7%) were observed at the edge in the small fragment. There was a reduction of SOC (21.3%) and LLC (39.0%) at the edge in the medium fragment, while MLC showed an increase at the edge (70.4%). The OFSOC were able to respond to the changes imposed by the edge effect, with emphasis on the LC and MLC fractions in smaller fragments. The forest fragment size influenced the level of changes caused by the edge effect in OFSOC, showing greater susceptibility in smaller fragments. 相似文献
595.
This paper describes the global political milestones of greater importance to the emergence and evolution of sustainable development. In addition, it depicts the cyclical patterns of political activity dealing with sustainability and identifies the main sustainability goals and targets endorsed by several political initiatives. These tasks are accomplished through a literature review and an assessment of indicators dealing with political will. It is concluded that global sustainability governance followed an intermittent path characterized by two periods of significant accomplishments (until 1979; 1987–1995) and by two others less successful (1980–1986; 1995 onwards, interrupted by a peak around 2000). Peaks in political activity coincide with the decennial Earth Summits, suggesting their major influence as catalysts of more profound societal and political action. Sustainability concerns and goals shifted from an emphasis on pollution control and availability of natural resources to a more balanced position that puts human development at the center. Copyright © 2009 John Wiley & Sons, Ltd and ERP Environment. 相似文献
596.
James Doss‐Gollin Francisco de Assis de Souza Filho Francisco Osny Enéas da Silva 《Journal of the American Water Resources Association》2016,52(1):129-137
During the past two decades, government efforts to provide water access to rural communities in Brazil's semiarid Northeast region have focused on building systems to capture and store rainwater, most importantly through the One Million Cisterns Program (P1MC). This article presents an analytic model based on daily precipitation data to evaluate the sustainability of rainwater capture. Application of this model to analysis of the P1MC reveals the heterogeneous climate in this region causes large spatial variability in the effectiveness of this program. In addition, the size of the area of capture, the run‐off coefficient of the roofs, and the amount of first‐flush diversion also have important effects. This analysis demonstrates while rainwater capture can offer sufficient water for drinking, as a stand‐alone solution it cannot meet P1MC objectives of guaranteeing sustainable and universal access to water for drinking, cooking, and basic hygiene in all regions and years. 相似文献
597.
Sean Hoban Jessica M. da Silva Alicia Mastretta-Yanes Catherine E. Grueber Myriam Heuertz Margaret E. Hunter Joachim Mergeay Ivan Paz-Vinas Keiichi Fukaya Fumiko Ishihama Rebecca Jordan Viktoria Köppä María Camilla Latorre-Cárdenas Anna J. MacDonald Victor Rincon-Parra Per Sjögren-Gulve Naoki Tani Henrik Thurfjell Linda Laikre 《Conservation Letters》2023,16(3):e12953
Recent scientific evidence shows that genetic diversity must be maintained, managed, and monitored to protect biodiversity and nature's contributions to people. Three genetic diversity indicators, two of which do not require DNA-based assessment, have been proposed for reporting to the Convention on Biological Diversity and other conservation and policy initiatives. These indicators allow an approximation of the status and trends of genetic diversity to inform policy, using existing demographic and geographic information. Application of these indicators has been initiated and here we describe ongoing efforts in calculating these indicators with examples. We specifically describe a project underway to apply these indicators in nine countries, provide example calculations, address concerns of policy makers and implementation challenges, and describe a roadmap for further development and deployment, incorporating feedback from the broader community. We also present guidance documents and data collection tools for calculating indicators. We demonstrate that Parties can successfully and cost-effectively report these genetic diversity indicators with existing biodiversity observation data, and, in doing so, better conserve the Earth's biodiversity. 相似文献
598.
599.
600.
Helna Almeida de Araujo Góes Ghulam Fatima Ronaldo de Oliveira Santos Jhunior João Maurício Gama Boaventura 《Corporate Social Responsibility and Environmental Management》2023,30(4):1561-1572
The purpose of this paper is to clarify the relationship between the managing for stakeholders approach and corporate environmental sustainability. Focused on the debates on the impacts that organizations and their stakeholders have on society's welfare, our conceptual paper proposes a rationale addressing the question: In what ways does managing for stakeholders may influence corporate environmental sustainability? To this end, we analyze previous literature on managing stakeholders focused on how firms address stakeholders' environmental concerns and previous literature on corporate sustainability focused on managing stakeholders' expectations. There is a fit between adopting a managing for stakeholders approach and encouraging firms to become more environmentally sustainable. Furthermore, our rationale argues that this approach may also influence firms to build closer relationships with stakeholders by adopting transparent practices and proactive environmental strategies, impacting synergic value creation, stakeholder engagement, and overall performance. Finally, we argue for a novel approach to link managing for stakeholders and corporate sustainability while suggesting propositions for future investigation and implications for practitioners. 相似文献