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   828篇
  免费   46篇
  国内免费   18篇
安全科学   11篇
废物处理   5篇
环保管理   360篇
综合类   98篇
基础理论   177篇
环境理论   12篇
污染及防治   15篇
评价与监测   18篇
社会与环境   186篇
灾害及防治   10篇
  2024年   2篇
  2023年   9篇
  2022年   13篇
  2021年   8篇
  2020年   18篇
  2019年   49篇
  2018年   59篇
  2017年   60篇
  2016年   70篇
  2015年   41篇
  2014年   30篇
  2013年   183篇
  2012年   25篇
  2011年   24篇
  2010年   25篇
  2009年   39篇
  2008年   21篇
  2007年   30篇
  2006年   23篇
  2005年   39篇
  2004年   17篇
  2003年   19篇
  2002年   20篇
  2001年   13篇
  2000年   16篇
  1999年   9篇
  1998年   7篇
  1997年   5篇
  1996年   5篇
  1995年   2篇
  1994年   3篇
  1993年   5篇
  1992年   1篇
  1991年   1篇
  1987年   1篇
排序方式: 共有892条查询结果,搜索用时 572 毫秒
581.
虽然高尔夫运动在我国起步较晚,但是近几年发展迅猛。就高尔夫在我国的营销模式进行了分析,总结了传统的营销模式,分析了当前我国高尔夫俱乐部营销存在的三大误区,即注重硬件设施忽视企业文化,注重单一产品忽视资源整合,注重销售工作忽视市场推广;提出了零售营销模式,以期为高尔夫俱乐部发展提供可行性建议。  相似文献   
582.
This article primarily discusses the issue of realizing sustainable development in Shandong Province, China through transformation. It compares the global energy structure to China’s, as well as among regions and provinces within China. The article takes six cities in Shandong Province as typical objectives, and then using principal component analysis it calculates their flexibility in regard to city shift and restructuring. The main purpose was to quantify the impact of economic activities triggered by the coal industry, a.k.a the energy economic nexus, and to assess the flexibility and sustainability in transformation among the observed coal-based cities.  相似文献   
583.
由美国耶鲁大学和哥伦比亚大学合作开发的环境可持续指数(Environmental Sustainability Index,ESI)可用以衡量一个国家或地区能为其后代人保持良好环境状态的能力,也可考虑作为环境决策的基础之一。其研究处在现有环境可持续指标体系研究的国际前沿水平。本文简介了ESI的进展与内涵;阐述了2005ESI的指标设置、方法学及其改进;列举了2005ESI用于146个国家或地区环境可持续性的测试结果及其政策建议,分析了中国得分很低的原因,最后,概要评述了ESI的特点和进一步发展方向。  相似文献   
584.
区域土地资源优化配置及其可持续利用   总被引:3,自引:0,他引:3  
从土地利用优化配置入手,介绍了其基本内涵和研究进展,阐述了土地资源可持续利用的途径与目标以及评价方法,建立了区域土地利用持续评价模式。  相似文献   
585.
基于生态足迹模型的中国发展可持续性评估   总被引:24,自引:0,他引:24  
可持续发展的定量测度是可持续发展战略得心实施的重要条件,加拿大学者Mathis Wackemagel提出的生态中迹模型就是一种测量可持续的新方法,该方法通过计算支持特定区域人类社会所有消费活动所需要的土地(生态足迹)与该区域可提供的生物生产性土地(生态承载力0相比较来判断区域发展的可持续性,本文首先简单介绍了生态足迹模型的基本概念、计算方法,然后对中国2001年生态足迹进行了实证研究,研究结果表明,2001年中国人均生态足迹为1.47435hm^2而人均承载力只有1.05306hm^2,生态赤字为0.42129hm^2中国发展具有强不可持续性,现有生产、消费模式的转变是可持续发展的必然要求。  相似文献   
586.
Having argued the importance of China's sustainable development in global sustainability, the authors review the achievements of China in sustainable development, especially its institutional construction. Environment to be counted in official's political performance rating system is thought of as a new institutional mechanism in China facilitating its sustainable development and then global sustainability. Then its significance is narrated and visions in future are envisioned. In the end, certain concrete suggestions for the rating system are given in a practical way.  相似文献   
587.
In Australia, governments are committed to water infrastructure developments that are both environmentally sustainable and economically viable. Consumption-based pricing is seen as a water conservation strategy. This has significant implications for Aboriginal communities, many of which do not pay for water use and experience economic hardship. This paper outlines attitudes towards paying for water use in five Aboriginal communities in South Australia. Inability to pay for services was a common factor hindering willingness to pay for water. While different factors were raised in different communities, most communities believed that water is a ‘cultural right’ that should not be paid for. The research found that strategies such as communication and community involvement in the decision-making processes around water supply are necessary to facilitate cost recovery and to promote water conservation.  相似文献   
588.
Importance of sustainability concerns demands consideration of sustainability design criteria in early stages of process design. Most often there are several alternatives for a particular process which must be compared in terms of sustainability metrics to select the most sustainable design. There are several tools available for evaluation of process alternatives in terms of sustainability concerns. However, there is a need for a screening method which enables engineers to compare and select several alternatives in terms of a multitude of metrics and also incorporate their preferences if required. This study utilizes a recently developed sustainability evaluator for process evaluation and compares overall impact factor method for process screening with a novel fuzzy-based approach. The applicability of the proposed method is demonstrated though application of the methodology on ibuprofen case study to select the most sustainable design.  相似文献   
589.
Abstract: Building water mass balances were performed for one 150‐story conventional building scenario for comparison with three scenarios of the 2020 Tower, a hypothetical 150‐story high‐rise building with on‐site wastewater treatment and reuse. To ensure that the assumptions for the hypothetical building are appropriate, a one‐year water balance was also conducted of the existing 27‐story Solaire building that partly closes the water/wastewater loop, meters major water flows and implements low‐flow/water conserving fixtures and appliances. For comparison, a conventional 27‐story building scenario with the same low‐flow/water conserving fixtures as the Solaire but no water reuse was also assessed. The mean daily indoor water use in the Solaire was 246 l/(d cap) which exceeds mean daily water use found in the literature. The water mass balances showed that an urban high‐rise building needs another source of water even when potable reuse water is produced because of losses during water end use and treatment (i.e., evaporation, water in treatment residues). Therefore, water conservation (i.e., modification of human behavior) and water efficiency improvements (i.e., equipment, appliances and fixtures) are important major factors in reducing the municipal water needed in all scenarios.  相似文献   
590.
In the Kullu District, Himachal Pradesh, India, economic and urban growth, and diversification have increased pressure on forests and forest-based social-ecological systems. As in many Himalayan regions, livelihood sustainability is linked to forest resources, products and services. Recent development in the region, to which these systems may be vulnerable, brings into question environmental and livelihood sustainability. This paper examines the resilience of integrated systems of people and nature, or social-ecological systems, in the face of development pressures by evaluating a number of local and state-level institutional responses. Resilience, which describes the ability of the social-ecological systems to adapt to change by buffering shocks, improving self-organization and increasing capacity for learning, is an essential quality for sustainable development. Institutional responses which positively contribute to resilience and sustainability include the work of mahila mandals in forest management, adoption of Joint Forest Management (JFM) policies and practices, upholding rules, strengthening local institutions, establishing firewood depots and adopting alternative energy sources. Institutional failures brought about by the lack of rule enforcement and corruption erode resilience. The analysis of institutional responses helps to identify areas where capacity exists and areas in which capacity building is needed to produce resilient social-ecological systems and therefore, sustainable development.  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