全文获取类型
收费全文 | 467篇 |
免费 | 42篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 69篇 |
废物处理 | 7篇 |
环保管理 | 69篇 |
综合类 | 79篇 |
基础理论 | 123篇 |
污染及防治 | 12篇 |
评价与监测 | 22篇 |
社会与环境 | 83篇 |
灾害及防治 | 50篇 |
出版年
2023年 | 5篇 |
2022年 | 4篇 |
2021年 | 5篇 |
2020年 | 15篇 |
2019年 | 20篇 |
2018年 | 28篇 |
2017年 | 31篇 |
2016年 | 28篇 |
2015年 | 22篇 |
2014年 | 20篇 |
2013年 | 63篇 |
2012年 | 19篇 |
2011年 | 24篇 |
2010年 | 19篇 |
2009年 | 31篇 |
2008年 | 29篇 |
2007年 | 29篇 |
2006年 | 24篇 |
2005年 | 18篇 |
2004年 | 18篇 |
2003年 | 8篇 |
2002年 | 9篇 |
2001年 | 6篇 |
2000年 | 9篇 |
1999年 | 3篇 |
1998年 | 7篇 |
1996年 | 6篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1981年 | 2篇 |
1975年 | 1篇 |
排序方式: 共有514条查询结果,搜索用时 46 毫秒
131.
政府环境报告基层实施是利用县级人大与公众直接联系的"基层"优势加强对政府环境责任监督的有效手段。实践中,报告主体及对象级别各异,报告内容繁简不一,总体情况为越是基层贯彻实施政府环境报告的力度越弱,存在报告形式不明确、信息公开不到位、常态化监督机制和政府责任缺失等问题。因此,必须在认清立法目的的基础上合理运用法律解释明确报告的法律属性,规范报告内容、扩大公开范围,利用"基层"优势与公众加强联系,并在准确定位环保法的前提下构建人大监督的刚性约束。 相似文献
132.
Anna Rabinovich Thomas A. MortonMegan E. Birney 《Journal of environmental psychology》2012,32(1):11-18
In two experimental studies, we investigated the effects of public perceptions of climate scientists’ communicative motives on trust in scientists and willingness to engage with climate science messages. Study 1 demonstrated that members of the public who were led to believe that scientists aim to inform about the consequences of climate change (rather than to persuade to take a particular course of action) reported higher trust in scientists and stronger willingness to engage in environmental behaviour. Study 2 revealed that this effect was moderated by the style of the scientific message that participants were exposed to. Participants who expected scientists to engage in persuasion were more receptive to persuasive rather than informative messages, while the opposite was true for participants who believed that scientists’ purpose was purely to inform. In both studies the effects of perceived motives on willingness to act in line with the climate change messages were mediated through trust in scientists. The data demonstrate that managing public expectations about the purposes of science communication and delivering messages that are consistent with these expectations are a key to successful communication of climate science. 相似文献
133.
在GB2626—2006《呼吸防护用品——自吸过滤式防颗粒物呼吸器》中防尘面罩粒子阻隔效率测定是一项评价防尘面罩性能的关键指标。为实现数据通信及处理的自动化操作,提高检测效率,本研究针对装置的串行数据通信的底层接口,开发基于EXCELVB脚本的串行通信数据处理系统。该系统为更好地研究实粒子阻隔效率测定方法和阻隔效率相关规律提供了便利条件。 相似文献
134.
Mike S. Schäfer Inga Schlichting 《Environmental Communication: A Journal of Nature and Culture》2014,8(2):142-160
A flurry of studies in recent years has analyzed the role of media in climate change communication. This article provides a systematic, large-scale, and up-to-date overview of the objects and characteristics of this research field through a meta-analysis. It identifies 133 relevant studies and analyzes them empirically. The results show that research activity has risen strongly over time, and that the analytical spectrum has expanded to include an increasing number of countries, more types of media including online and social media, and different methodological approaches. The analysis also demonstrates, however, that scholarship in the field still concentrates strongly on Western countries and print media. 相似文献
135.
城市移动通信基站电磁辐射环境调查与评价——以连云港为例 总被引:1,自引:0,他引:1
对连云港移动通信基站电磁辐射环境进行现状调查与评价,将3个时段内移动基站电磁辐射监测数据进行统计分析和分区评价。结果表明,监测数据均能符合相应的环境标准,县域电磁环境辐射水平整体略低于城市区域,基站周边整体受电磁辐射影响程度随高度上升呈增加趋势,10 m~15 m高度处的综合场强平均峰值最高。 相似文献
136.
电磁辐射环境信访分析与应对措施探讨 总被引:2,自引:0,他引:2
以南通市辐射环境信访调处为例,对该市近年来电磁辐射信访投诉量及其变化,投诉对象、方式、诉求等进行分析,并结合调处经验,提出上门实测、合法性核查、组织协调等应对措施,以及完善执行机制,优化评价技术;加强辐射环境监管;保障公众参与权、知情权和监督权;正确引导公众舆论等解决辐射环境信访问题的建议。 相似文献
137.
选取南通市具有代表性的9种不同架设类型的基站现场实测,分析其地面水平方向上的电磁辐射分布特征,以掌握基站不同架设方式对地面电磁辐射的影响。结果表明:天线架设方式不同,地面电磁辐射强度及分布存在一定差异,落地塔监测值整体低于楼顶塔。50 m范围内,功率密度值由大到小依次是楼顶抱杆楼顶井字塔楼顶角钢塔楼顶景观塔楼顶集束天线楼顶拉线塔楼顶四角塔楼顶美化天线落地塔,地面最大值普遍出现在距离基站20 m~30 m范围。受天线架设高度、下倾角因素的影响,楼顶美化天线和楼顶角钢塔地面最大值点分别出现在距离基站60 m和70 m处,超出监测点位50 m布设范围。 相似文献
138.
Kelli L. Larson Robert M. Edsall 《Journal of Environmental Planning and Management》2010,53(3):335-352
To assess changes in human understanding and decision making, the paper examines (1) the influence of visual information on perceptions about groundwater management in Phoenix, Arizona and (2) the correlates and dimensions underlying people's views about water scarcity and mitigation strategies. While perceptions entrenched in ideologies are difficult to change, different types of information (three-dimensional versus two-dimensional) have distinct impacts on the perceived magnitude of problems compared to judgements about their causes and solutions. Overall, visual information may be especially useful for developing a shared understanding of problems and a collective vision for management alternatives. Additional implications of this study for fostering environmental awareness, policy support, and collaborative decision making are also discussed. 相似文献
139.
140.
Yann Devos Pieter Maeseele Dirk Reheul Linda Van Speybroeck Danny De Waele 《Journal of Agricultural and Environmental Ethics》2008,21(1):29-61
Via a historical reconstruction, this paper primarily demonstrates how the societal debate on genetically modified organisms
(GMOs) gradually extended in terms of actors involved and concerns reflected. It is argued that the implementation of recombinant
DNA technology out of the laboratory and into civil society entailed a “complex of concerns.” In this complex, distinctions
between environmental, agricultural, socio-economic, and ethical issues proved to be blurred. This fueled the confusion between
the wider debate on genetic modification and the risk assessment of transgenic crops in the European Union. In this paper,
the lasting skeptical and/or ambivalent attitude of Europeans towards agro-food biotechnology is interpreted as signaling
an ongoing social request – and even a quest – for an evaluation of biotechnology with Sense and Sensibility. In this (re)quest, a broader-than-scientific dimension is sought for that allows addressing the GMO debate in a more “sensible”
way, whilst making “sense” of the different stances taken in it. Here, the restyling of the European regulatory frame on transgenic
agro-food products and of science communication models are discussed and taken to be indicative of the (re)quest to move from
a merely scientific evaluation and risk-based policy towards a socially more robust evaluation that takes the “non-scientific”
concerns at stake in the GMO debate seriously. 相似文献