全文获取类型
收费全文 | 1030篇 |
免费 | 29篇 |
国内免费 | 11篇 |
专业分类
安全科学 | 136篇 |
废物处理 | 11篇 |
环保管理 | 299篇 |
综合类 | 395篇 |
基础理论 | 60篇 |
污染及防治 | 46篇 |
评价与监测 | 13篇 |
社会与环境 | 100篇 |
灾害及防治 | 10篇 |
出版年
2023年 | 7篇 |
2022年 | 11篇 |
2021年 | 21篇 |
2020年 | 17篇 |
2019年 | 18篇 |
2018年 | 21篇 |
2017年 | 28篇 |
2016年 | 25篇 |
2015年 | 17篇 |
2014年 | 34篇 |
2013年 | 56篇 |
2012年 | 29篇 |
2011年 | 64篇 |
2010年 | 34篇 |
2009年 | 57篇 |
2008年 | 81篇 |
2007年 | 64篇 |
2006年 | 54篇 |
2005年 | 34篇 |
2004年 | 34篇 |
2003年 | 49篇 |
2002年 | 43篇 |
2001年 | 41篇 |
2000年 | 55篇 |
1999年 | 50篇 |
1998年 | 48篇 |
1997年 | 25篇 |
1996年 | 11篇 |
1995年 | 8篇 |
1994年 | 7篇 |
1993年 | 9篇 |
1992年 | 6篇 |
1991年 | 4篇 |
1990年 | 1篇 |
1989年 | 3篇 |
1987年 | 3篇 |
1986年 | 1篇 |
排序方式: 共有1070条查询结果,搜索用时 281 毫秒
221.
王如松 《中国人口.资源与环境》1997,7(3):11-14
本文提出了社会发展综合实验区建设的实质就是协调好人口、资源与环境间的生态关系,为了促进社会—经济—自然复合生态系统的持续发展,探讨了科技引导实验区生态建设的途径。 相似文献
222.
In order to develop small islands, not only must a vital agricultural system be maintained, but the range of opportunities
for tourism must be increased with respect to both the seaside and the environmental features of the rural landscape. As an
alternative to the traditional and economically declining ones, many innovative production processes can be identified, but
their success depends on their interaction with the physical, biological, economic and social environment. In order to identify
the main nodes and the most critical interactions, so as to increase the probability of success of a new productive process,
a methodological approach based on the science of complexity is proposed for the cultivation of capers (Capparis spinosa L.) on the island of Pantelleria. The methodology encompasses the identification of actors and factors involved. the quantitative
evaluation of their interactions with the different stages of the productive process, and a quasiquantitative evaluation of
the probability that the particular action will be performed successfully.
The study of “traditional,” “modernized,” and “modernized-sustainable” processes, shows that the modernized-sustainable process
offers mutually reinforcing opportunities in terms of an integrated development of high-quality agricultural products and
the enhancement of environmental features, in conjunction with high-efficiency production techniques, in conjunction with
high-efficiency production techniques, in a way that suits the development of Pantelleria. There is a high probability of
failure, however, as a result of the large number of critical factors. Nevertheless, the present study indicates which activities
will enhance the probability of successful innovation in the production process. 相似文献
223.
Stephen R. Gliessman 《Environmental management》1992,16(6):681-689
Agroecology is the application of ecological concepts and principles to the design and management of sustainable agricultural
systems. An agroecological approach to agriculture has special importance in the humid tropics where agricultural development
and the preservation of tropical forests are most often in direct conflict. It is proposed that a more sustainable approach
to development is needed, where agroecosystems depend on low external inputs, function more on the use of locally available
and renewable resources, have benign impacts on the environment, and are based on the knowledge and culture of the local inhabitants.
Examples of traditional agroecosystem management in Mesoamerica that can provide this basis are presented. The preservation
of both biological and cultural diversity are integral to the long-term sustainable management of natural resources in the
tropics. 相似文献
224.
Stephen R. Dovers 《Environmental management》1990,14(3):297-305
This article examines the concept of sustainability (sustainable development, sustainable societies) with a view to providing
a means of considering the idea in such a way as to be more useful to concerns of policy. A brief background is given, covering
the historical development of the concept, the constituent ecological and social concerns that lie behind it, and some aspects
of the sustainability debate in Australia. Some attributes of a sustainable future, as evident from the literature, are listed.
The value base of the concept is recognized, and the correct place for sustainability concerns is identified within a simple
policy-making model. The complexity of such a model in the real world is explored using a list of thecontexts of sustainability, illustrated with examples from Australian natural resource management.
Finally, the more dynamic and flexible nature of patterns of production and consumption in more sustainable societies is recognized
and explained, as are two guiding directives to be applied in the search for models which display characteristics of sustainability. 相似文献
225.
重庆高新区可持续发展水平评价与对策研究 总被引:2,自引:0,他引:2
提出了建立重庆高新区可持续发展评价指标体系的6项基本原则,从经济高效、社会文明、环境舒适(ESE)3方面设计了包括3个高层指标、8个中层指标、45个单项指标的指标体系。采用特尔斐法、层次分析法和线性加权法,对评价指数进行了量化计算和整合,据此评价重庆高新区的可持续发展水平,并对照发展性质相似的苏州高新区、深圳高新区,指出重庆高新区在发展中存在的问题,并提出可持续发展的若干对策。 相似文献
226.
227.
环境补偿制度——解决环境问题的经济手段之一 总被引:4,自引:0,他引:4
为了保护环境,使环境资源可持续利用,应该建立环境补偿制度。环境补偿制度是解决环境问题的有效手段之一。本文从环境补偿的概念出发,对环境补偿制度的理论基础,建立目的、征收原则及对象等内容进行了探讨。 相似文献
228.
可持续发展战略与上海“十五”计划编制的研究 总被引:1,自引:0,他引:1
“十五”计划是上海市进入21世纪的第1个5年计划,从提升自身发展质量和国际综合竞争能力的要求分析了将可持续发展战略纳入上海“十五”计划编制工作的必要性和重要性,围绕思想创新、目标创新、框架创新、指标创新等4个方面探讨了以可持续发展为定位的上海“十五”计划编制思路。 相似文献
229.
介绍了沈阳可持续发展项目并探讨了该项目对沈阳市实施可持续发展的影响,突出了实施可持续发展战略对沈阳的影响,并对如何实施沈阳可持续发展战略、做好沈阳可持续发展项目提出了建议. 相似文献
230.
基塘系统可持续发展现状、问题及对策研究 总被引:5,自引:0,他引:5
珠江三角洲基塘生态系统是一种独特的人工生态系统,也是可持续农业的一种类型。本文分析了在经济高速发展的条件下,基塘生态系统的特点、现状及可持续发展中存在的问题,并针对性地提出对策和建议。 相似文献