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   561篇
  免费   9篇
  国内免费   4篇
安全科学   42篇
废物处理   5篇
环保管理   145篇
综合类   246篇
基础理论   29篇
污染及防治   21篇
评价与监测   27篇
社会与环境   51篇
灾害及防治   8篇
  2023年   2篇
  2022年   2篇
  2021年   6篇
  2020年   18篇
  2019年   7篇
  2018年   2篇
  2017年   7篇
  2016年   19篇
  2015年   8篇
  2014年   18篇
  2013年   24篇
  2012年   20篇
  2011年   29篇
  2010年   18篇
  2009年   31篇
  2008年   31篇
  2007年   27篇
  2006年   24篇
  2005年   32篇
  2004年   25篇
  2003年   30篇
  2002年   21篇
  2001年   19篇
  2000年   31篇
  1999年   23篇
  1998年   14篇
  1997年   17篇
  1996年   5篇
  1995年   5篇
  1994年   5篇
  1993年   6篇
  1992年   9篇
  1991年   4篇
  1990年   2篇
  1989年   2篇
  1988年   3篇
  1987年   2篇
  1986年   5篇
  1985年   4篇
  1984年   4篇
  1983年   3篇
  1982年   7篇
  1980年   1篇
  1974年   1篇
  1968年   1篇
排序方式: 共有574条查询结果,搜索用时 0 毫秒
211.
西部大开发中的四川猕猴桃资源优势   总被引:4,自引:0,他引:4  
通过对四川省猕猴桃资源现状的分析,阐述了四川猕猴桃的资源优势及其人工栽培现状,提出了在西部大开发中发展四川猕猴桃产业化的道路。  相似文献   
212.
There has been considerable research on North–South issues on climate change; however, little work has been done on how the recent discovery of oil in some developing countries could affect North–South relations, the prospects for development for the South, climate change and local socio-environmental issues. Using the theory of inclusive development, the concept of the Right to Development, and their relation to stranded assets, this paper addresses the question: what does inclusive development imply at the national and global level in dealing with oil extraction in the context of climate change? Based on a literature review and a layered case study of Kenya, this paper concludes that (a) Kenyans argue that Kenya has a right to extract and use oil resources and that rich countries should reduce their extraction and use; (b) such a claim could be integrated in an appropriate emissions trading scheme; and that (c) Kenya should also account for the national and local socioecological aspects to reduce potential local conflict, yet the conditions favoring inclusive development are not yet established. However, such an argument may also lead to perverse results. If addressing climate change requires phasing out fossil fuels, this argument may lead to stranded assets in both developed and developing countries, and may ironically leave developing countries poorer off as stranded assets are possibly more expensive than having stranded resources.  相似文献   
213.
可持续发展:西部大开发的基本理念   总被引:8,自引:0,他引:8  
本文从西部大开发的深远意义出发 ,探讨西部大开发的约束条件 ,进而讨论可持续发展是西部大开发的基本理念 ,并以可持续发展为指导原则提出建议。  相似文献   
214.
乌鲁木齐可持续城市发展战略研究   总被引:7,自引:0,他引:7  
本文系统地分析了可持续城市发展的支持系统和主要问题,提出了新世纪乌鲁木齐可持续城市发展战略及其目标、方针与重点,指出了乌鲁木齐可持续城市发展的战略模式。  相似文献   
215.
开发区生态系统健康研究--以苏州高新区为例   总被引:6,自引:0,他引:6  
吴长年  魏婷 《四川环境》2005,24(6):54-58
采用生态系统健康理论分析开发区生态环境问题具有较强的理论意义和现实意义。着重构建了开发区生态系统健康评价的指标体系和模糊评价模型,提出评价标准。并对苏州高新区生态系统健康进行评价。进而指出制约因子并提出相应的诊断方案,为其优化生态系统结构和完善系统功能提供科学依据。  相似文献   
216.
针对河北省经济社会发展的态势,在分析制约可持续发展因素的基础上,论述了环境保护与可持续发展的关系以及金融、财政、税收和产业等宏观调控政策,提出了实现省域环境保护与可持续发展的对策与措施。  相似文献   
217.
农业可持续发展是国家可持续发展的根本保证和优先领域,实现农业可持续发展必须建立可持续农业。本文认为,高科技生态农业是中国可持续农业的唯一战略选择和最终出路。为实现这一战略选择,在继续贯彻实施计划生育和环境保护两个基本国策的同时,必须调整现有的农业结构和资源管理模式,制定可持续利用的资源管理政策,发展以生态农业为基础、以高新农业技术为手段的高科技生态农业。  相似文献   
218.
The international minerals industry continues to have a substantial investment shortfall. The widening exploration and mineral development gaps, not only in the lesser developed countries but also in the developed nations, are sowing the seeds for future mineral supply disruptions and conflicts. Mutuality of interests demands concerted initiatives, individual as well as collective, to reverse the investment trends established by international mineral finance and the multinational corporations in order to pave the way for secure mineral supplies in the future at acceptable prices.  相似文献   
219.
A large number of organizations make decisions that directly or indirectly affect tropical forests. The principal constraints that affect these organizations are (1) insufficient funds; (2) insufficient knowledge about the resources and appropriate technologies; (3) institutional, cultural, and political factors; (4) inadequate communication; and (5) contradictory efforts. Opportunities for improving the efficiency and effectiveness of these organizations include (1) increasing cooperation among US government agencies; (2) redirecting international organizations; (3) increasing coordination among organizations; (4) boosting support of nongovernmental organizations and universities; (5) encouraging responsible involvement by private corporations; (6) strengthening existing organizations; and (7) creating new organizations.This article is drawn from US Congress, Office of Technology Assessment (1984), Technologies to Sustain Tropical Forest Resources, chap. 5. Other articles drawn from the OTA report are Hyman (1984a and b) and Hyman and Ross-Sheriff (1984). A larger number of organizations with activities related to tropical forestry are briefly described in the background paper (US Congress, Office of Technology Assessment 1983).  相似文献   
220.
Although relations between direct investors and host countries must steadily evolve to meet continually changing circumstances, this should be within a broadly stable framework. The basic technical and economic characteristics of mining should dictate the nature of that framework. In contemplating their experiences during the past decade many international mining companies might ruefully agree with Benjamin Franklin that: ‘in this world nothing can be said to be certain except death and taxes’. The aim of this paper is to highlight some of the important factors that must be taken into account by governments, international agencies and private investors contemplating large-scale mining projects. These inevitably dictate the forms of international participation in mining ventures.  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