全文获取类型
收费全文 | 2576篇 |
免费 | 187篇 |
国内免费 | 134篇 |
专业分类
安全科学 | 55篇 |
废物处理 | 42篇 |
环保管理 | 929篇 |
综合类 | 1029篇 |
基础理论 | 350篇 |
环境理论 | 44篇 |
污染及防治 | 95篇 |
评价与监测 | 54篇 |
社会与环境 | 229篇 |
灾害及防治 | 70篇 |
出版年
2024年 | 7篇 |
2023年 | 39篇 |
2022年 | 30篇 |
2021年 | 57篇 |
2020年 | 61篇 |
2019年 | 97篇 |
2018年 | 88篇 |
2017年 | 157篇 |
2016年 | 122篇 |
2015年 | 108篇 |
2014年 | 86篇 |
2013年 | 142篇 |
2012年 | 111篇 |
2011年 | 177篇 |
2010年 | 110篇 |
2009年 | 156篇 |
2008年 | 131篇 |
2007年 | 112篇 |
2006年 | 120篇 |
2005年 | 119篇 |
2004年 | 85篇 |
2003年 | 92篇 |
2002年 | 108篇 |
2001年 | 79篇 |
2000年 | 61篇 |
1999年 | 54篇 |
1998年 | 33篇 |
1997年 | 31篇 |
1996年 | 30篇 |
1995年 | 52篇 |
1994年 | 47篇 |
1993年 | 36篇 |
1992年 | 19篇 |
1991年 | 13篇 |
1990年 | 18篇 |
1989年 | 10篇 |
1988年 | 7篇 |
1987年 | 10篇 |
1986年 | 9篇 |
1985年 | 18篇 |
1984年 | 9篇 |
1983年 | 10篇 |
1982年 | 7篇 |
1981年 | 5篇 |
1979年 | 4篇 |
1978年 | 4篇 |
1977年 | 5篇 |
1973年 | 2篇 |
1972年 | 2篇 |
1971年 | 3篇 |
排序方式: 共有2897条查询结果,搜索用时 15 毫秒
1.
Conservation conflicts are gaining importance in contemporary conservation scholarship such that conservation may have entered a conflict hype. We attempted to uncover and deconstruct the normative assumptions behind such studies by raising several questions: what are conservation conflicts, what justifies the attention they receive, do conservation-conflict studies limit wildlife conservation, is scientific knowledge stacked against wildlife in conservation conflicts, do conservation-conflict studies adopt a specific view of democracy, can laws be used to force conservation outcomes, why is flexibility needed in managing conservation conflicts, can conservation conflicts be managed by promoting tolerance, and who needs to compromise in conservation conflicts? We suggest that many of the intellectual premises in the field may defang conservation and prevent it from truly addressing the current conservation crisis as it accelerates. By framing conservation conflicts as conflicts between people about wildlife or nature, the field insidiously transfers guilt, whereby human activities are no longer blamed for causing species decline and extinctions but conservation is instead blamed for causing social conflicts. When the focus is on mitigating social conflicts without limiting in any powerful way human activities damaging to nature, conservation-conflict studies risk keeping conservation within the limits of human activities, instead of keeping human activities within the limits of nature. For conservation to successfully stop the biodiversity crisis, we suggest the alternative goal of recognizing nature's right to existence to maintenance of ecological functions and evolutionary processes. Nature being a rights bearer or legal person would imply its needs must be explicitly taken into account in conflict adjudication. If, even in conservation, nature's interests come second to human interests, it may be no surprise that conservation cannot succeed. 相似文献
2.
Tibor Hartel Ben C. Scheele Abi Tamim Vanak Laurențiu Rozylowicz John D. C. Linnell Euan G. Ritchie 《Conservation biology》2019,33(6):1256-1265
Achieving coexistence between large carnivores and humans in human-dominated landscapes (HDLs) is a key challenge for societies globally. This challenge cannot be adequately met with the current sectoral approaches to HDL governance and an academic community largely dominated by disciplinary sectors. Academia (universities and other research institutions and organizations) should take a more active role in embracing societal challenges around conservation of large carnivores in HDLs by facilitating cross-sectoral cooperation to mainstream coexistence of humans and large carnivores. Drawing on lessons from populated regions of Europe, Asia, and South America with substantial densities of large carnivores, we suggest academia should better embrace the principles and methods of sustainability sciences and create institutional spaces for the implementation of transdisciplinary curricula and projects; reflect on research approaches (i.e., disciplinary, interdisciplinary, or transdisciplinary) they apply and how their outcomes could aid leveraging institutional transformations for mainstreaming; and engage with various institutions and stakeholder groups to create novel institutional structures that can respond to multiple challenges of HDL management and human–large carnivore coexistence. Success in mainstreaming this coexistence in HDL will rest on the ability to think and act cooperatively. Such a conservation achievement, if realized, stands to have far-reaching benefits for people and biodiversity. 相似文献
3.
4.
基于复杂系统建模的水管理政策研究进展 总被引:3,自引:0,他引:3
基于Agent的建模方法(ABSS)通过自下而上的方式,考察系统中主体的不同状态和行为特征、主体与环境的作用、主体之间的作用,来表征系统的宏观特征,是进行复杂社会环境系统分析和政策研究的重要手段,在水资源、水环境管理系统中得到了有效的应用。本文在大量文献调研的基础上,讨论了ABSS建模方法的基本原理、主要特征、系统构成、分类方法和开发工具等特征,总结了其供水系统发展、水资源分配和流域水资源管理、农业土地和水资源利用、居民用水行为、农业污染控制及人类活动的水环境影响等方面的应用,分析了其在研究内容、研究方法、研究结果等方面的发展趋势,讨论了利用该方法研究我国水资源管理和水污染控制政策的必要性和重要性。 相似文献
5.
6.
7.
8.
9.
10.