全文获取类型
收费全文 | 374篇 |
免费 | 52篇 |
国内免费 | 18篇 |
专业分类
安全科学 | 60篇 |
废物处理 | 14篇 |
环保管理 | 114篇 |
综合类 | 127篇 |
基础理论 | 56篇 |
环境理论 | 1篇 |
污染及防治 | 14篇 |
评价与监测 | 7篇 |
社会与环境 | 37篇 |
灾害及防治 | 14篇 |
出版年
2024年 | 1篇 |
2023年 | 10篇 |
2022年 | 17篇 |
2021年 | 27篇 |
2020年 | 21篇 |
2019年 | 21篇 |
2018年 | 20篇 |
2017年 | 14篇 |
2016年 | 34篇 |
2015年 | 20篇 |
2014年 | 10篇 |
2013年 | 21篇 |
2012年 | 18篇 |
2011年 | 26篇 |
2010年 | 20篇 |
2009年 | 20篇 |
2008年 | 18篇 |
2007年 | 18篇 |
2006年 | 20篇 |
2005年 | 19篇 |
2004年 | 9篇 |
2003年 | 10篇 |
2002年 | 10篇 |
2001年 | 17篇 |
2000年 | 7篇 |
1999年 | 5篇 |
1997年 | 5篇 |
1995年 | 2篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1986年 | 1篇 |
排序方式: 共有444条查询结果,搜索用时 15 毫秒
101.
发展黄姜产业循环经济探讨 总被引:3,自引:2,他引:3
黄姜产业对产地社会经济意义重大,但其所带来的环境问题也非常严重,如何使该产业持续健康发展,循环经济是其根本出路。本文论述了黄姜产业走循环经济之路的必要性,提出了黄姜产业循环经济的基本框架和实现的保证措施。 相似文献
102.
103.
采用聚乙烯亚胺(PEI)改性氨基化锆基金属有机骨架材料(UiO-66-NH2)制备了UiO-66-NH2/PEI,利用XRD、SEM和FTIR对产物进行了表征,并将其用于吸附水中的U(Ⅵ)。考察了UiO-66-NH2/PEI吸附U(Ⅵ)的影响因素,并研究了吸附动力学和等温线。实验结果表明:UiO-66-NH2/PEI对U(Ⅵ)具有良好的吸附效果,PEI与UiO-66-NH2质量比为30%、溶液pH为6、吸附剂投加量为80 mg/L、吸附时间为120 min、初始U(Ⅵ)质量浓度为10 mg/L时,UiO-66-NH2/PEI对U(Ⅵ)的去除率达98.2%(303 K下);UiO-66-NH2/30%PEI对U(Ⅵ)的吸附在60 min内达到平衡,吸附过程符合准二级动力学模型和Langmuir模型,最大吸附量达452.49 mg/g。 相似文献
104.
105.
This paper explores the nature of the violence that characterises complex humanitarian emergencies and the related implications for modelling livelihoods systems. While noting the importance of livelihoods approaches in complex humanitarian emergencies, it deliberates the limitations of sustainable livelihoods frameworks when applied in environments marked by protracted instability. Adaptations to the model are discussed, with a particular focus on the relationships among violence, assets and liabilities within livelihoods systems. Political economy of violence theories intimate that the assets on which livelihoods systems are constructed in peaceful times may instead become life-and livelihood-threatening liabilities in periods of conflict. Adaptations to livelihood systems in violent settings require that analysts consider violence from policy, institutional and process perspectives. It is suggested that vulnerability should be re-conceptualised as endogenous to livelihoods systems in violent settings. Building on the work of others, a livelihoods model adapted for complex humanitarian emergencies is presented. 相似文献
106.
107.
An oil spill in July 2003 from the tanker Tasman Spirit attracted considerable public and media attention in Pakistan. This paper focuses on the experience of a developing country such as Pakistan in dealing with a major oil spill and its impact on bringing about change in the national regulatory framework. A major outcome has been the ratification of the International Convention on Civil Liability for Oil Pollution Damage 1992, which came into force in March 2006 in Pakistan. The convention provides a compensation mechanism for victims incurring oil pollution damages from maritime casualties involving oil laden ships. Several additional changes are still required to improve the country's ability to cope with marine oil spills. These include the development of a comprehensive domestic regulatory framework, implementation of an effective contingency plan, and capacity building of all relevant agencies. 相似文献
108.
Ching-Ho Chen Ray-Shyan Wu Wei-Lin Liu Wen-Ray Su Yu-Min Chang 《Environmental management》2009,43(1):166-188
Some countries, including Taiwan, have adopted strategic environmental assessment (SEA) to assess and modify proposed policies,
plans, and programs (PPPs) in the planning phase for pursuing sustainable development. However, there were only some sketchy
steps focusing on policy assessment in the system of Taiwan. This study aims to develop a methodology for SEA in Taiwan to
enhance the effectiveness associated with PPPs. The proposed methodology comprises an SEA procedure involving PPP management
and assessment in various phases, a sustainable assessment framework, and an SEA management system. The SEA procedure is devised
based on the theoretical considerations by systems thinking and the regulative requirements in Taiwan. The positive and negative
impacts on ecology, society, and economy are simultaneously considered in the planning (including policy generation and evaluation),
implementation, and control phases of the procedure. This study used the analytic hierarchy process, Delphi technique, and
systems analysis to develop a sustainable assessment framework. An SEA management system was built based on geographic information
system software to process spatial, attribute, and satellite image data during the assessment procedure. The proposed methodology
was applied in the SEA of golf course installation policy in 2001 as a case study, which was the first SEA in Taiwan. Most
of the 82 existing golf courses in 2001 were installed on slope lands and caused a serious ecological impact. Assessment results
indicated that 15 future golf courses installed on marginal lands (including buffer zones, remedied lands, and wastelands)
were acceptable because the comprehensive environmental (ecological, social, and economic) assessment value was better based
on environmental characteristics and management regulations of Taiwan. The SEA procedure in the planning phase for this policy
was completed but the implementation phase of this policy was not begun because the related legislation procedure could not
be arranged due to a few senators’ resistance. A self-review of the control phase was carried out in 2006 using this methodology.
Installation permits for 12 courses on slope lands were terminated after 2001 and then 27 future courses could be installed
on marginal lands. The assessment value of this policy using the data on ecological, social, and economic conditions from
2006 was higher than that using the data from 2001. The analytical results illustrate that the proposed methodology can be
used to effectively and efficiently assist the related authorities for SEA. 相似文献
109.
金属非金属矿山安全标准化信息管理平台的开发 总被引:2,自引:0,他引:2
按照《金属非金属矿山安全标准化规范》的要求,为便于信息管理,建立了矿山安全标准化信息管理系统;该系统根据安全标准化规范的14个要素,将安全标准化管理信息平台划分为13个子系统,并研讨了安全标准化信息管理系统的各个功能模块;结合矿山实际,把信息系统平台分为系统管理模块,统一信息发布平台前台管理模块,后台管理模块等。该信息系统平台采用NET的技术开发信息系统平台,充分运用其基于组件开发的技术,为企业提供一个规范化、标准化管理平台,实现安全动态管理模式,使安全标准化在企业得以实现。 相似文献
110.
分析省级安全生产应急救援指挥的业务特点,认为它是一个平时模拟演练和事故现场应急指挥并重、平战结合的一体化过程,是一个广域多部门实时动态的联动过程;笔者提出安全生产应急救援的框架体系,并以网络为基础,以信息技术为手段,以智能设备为前端而构建一个实时直观的应急指挥有机体,包括基础支持系统、综合应用系统、数据库系统、移动指挥平台、前端展示系统,以及法律法规等体系、安全保障体系等,同时重点分析其中的网络结构、综合应用系统,以及与其他单位系统的接口。该框架体系通过广东省安全生产监督管理部门的验证,在实践中是可行的。 相似文献