全文获取类型
收费全文 | 258篇 |
免费 | 14篇 |
国内免费 | 5篇 |
专业分类
测绘学 | 20篇 |
大气科学 | 76篇 |
地球物理 | 27篇 |
地质学 | 56篇 |
海洋学 | 39篇 |
综合类 | 15篇 |
自然地理 | 44篇 |
出版年
2023年 | 2篇 |
2022年 | 10篇 |
2021年 | 10篇 |
2020年 | 3篇 |
2019年 | 4篇 |
2018年 | 7篇 |
2017年 | 17篇 |
2016年 | 26篇 |
2015年 | 16篇 |
2014年 | 29篇 |
2013年 | 22篇 |
2012年 | 9篇 |
2011年 | 17篇 |
2010年 | 11篇 |
2009年 | 14篇 |
2008年 | 19篇 |
2007年 | 13篇 |
2006年 | 11篇 |
2005年 | 8篇 |
2004年 | 3篇 |
2003年 | 2篇 |
2002年 | 10篇 |
2001年 | 2篇 |
2000年 | 6篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1996年 | 2篇 |
1985年 | 1篇 |
1983年 | 1篇 |
排序方式: 共有277条查询结果,搜索用时 984 毫秒
271.
《Marine Policy》2014
This paper presents the results of a nationwide survey in Ireland that explored the values, concerns and preferences of individuals towards the Irish marine environment. The results of the Irish survey are also compared to the results from similar surveys carried out in other maritime countries in the EU. The results of the Irish survey demonstrate a reasonable level of knowledge of the main threats facing Ireland׳s marine environment and of the importance of non-market as well as market ecosystem services provided by the seas around the Irish coast. The results also suggest that the Irish public are sceptical of the ability of government and private industry to manage the Irish marine economy but instead place a large amount of trust in the competency of scientists. The perception of whether or not they consider where they live as being a coastal area would also suggest that the Irish public hold a much more narrow view of what constitutes a coastal area than that held by statistical agencies such as Eurostat. 相似文献
272.
《Marine Policy》2014
The state of Rhode Island's Ocean Special Area Management Plan (Ocean SAMP) is the first marine spatial plan in the United States to be formally approved by the federal government as an element of a state's Coastal Management Program. The 3800 km2 Ocean SAMP region includes waters under both state and federal jurisdiction. The Ocean SAMP applies the inclusive, ecosystem-based approach to marine spatial planning recommended by the National Ocean Commission in 2004 that is a feature of the National Ocean Policy promulgated in 2010. It places within a larger spatial planning context the impact assessment process that is the basis for the issuance of leases and permits requested by a developer for a specified activity at a defined marine site. The Ocean SAMP was prepared over a two and a half year period of information generation, analysis, consultation, planning and policy making prompted by the need to identify potentially suitable sites for anticipated offshore wind farms. Its highly consultative approach builds upon the 30 years of experience of the Rhode Island Coastal Program in developing and implementing special area management plans (SAMPs) for coastal and marine areas where conflicts over needs for both development and conservation demand special attention and negotiation among stakeholders with different interests. The phases in the development and approval of the Ocean SAMP, and the prospects for successful implementation are examined through frameworks suggested for the preparation of a governance baseline put forward by the international Land Ocean Interactions in the Coastal Zone (LOICZ) program. 相似文献
273.
国外地质资料社会化服务总体趋势 总被引:1,自引:0,他引:1
地质资料是地球信息的重要载体,作为公益性组织的各国地质调查机构,均十分重视地质资料的社会化服务工作。通过查阅美国、加拿大、澳大利亚、英国等发达国家地质调查机构的官网和有关文献,本文总结出当前世界地质资料社会化服务的总体趋势是:各国地调机构均十分重视社会公众需求服务,提供多样化、系列化地质产品;严格管理各类产品的地质资料的维护与发布,以确保地质资料的质量;建立各级各类专业化服务机构,服务不同层次、不同类型的群体,普及地质科学知识;服务类型及服务模式多样,公益性与商业性服务共存;制定完善的客户服务制度体系,明确考核标准。 相似文献
274.
《Marine Policy》2015
Marine spatial planning (MSP) is becoming increasingly used in the sustainable management of marine and coastal ecosystems. However, limitations on time and resources often restrict the data available for MSP and limit public engagement and participation in the MSP process. While citizen science is being increasingly used to provide fine-scale environmental data across large terrestrial planning areas, there has been little uptake in MSP to date. This paper demonstrates how consistent citizen observations can be used to identify hotspots of good and poor environmental health across a MSP region, and where environmental health has improved or degraded in the past five years; information that is difficult to obtain by other means. The study demonstrates how citizen science provides valuable insight into environmental health across a MSP region, while fostering a supportive space for the public to contribute their own observations and participate in the planning process. 相似文献
275.
276.
《Chemie der Erde / Geochemistry》2002,62(2):210-223
Society could sustain the impact of climate change by adapting to the change and mitigating risks from adverse effects of increasing changes, so that it can continue maintaining its prospect and improving wellbeing. Nevertheless, climate change is more or less affecting society's functions at different scales, including both individuals and communities. In this review, we discuss the relationship between society and climate change in China from the aspects of the needs at different socioeconomic developing stages. The relationship as well as the current spatial pattern and future risks of the climate change impacts on societies are summarized. The complexity of social and climatic systems leads to the spatial heterogeneity of climate impacts and risks in China. To more effectively leverage increasing knowledge about the past, we advocate greater cross-disciplinary collaboration between climate adaption, poverty alleviation and Nature-based Solutions (Nbs). That could provide decision makers with more comprehensive train of thoughts for climate policy making. 相似文献
277.
中山市公共信息服务平台数据部署初探 总被引:1,自引:0,他引:1
俞国权 《测绘与空间地理信息》2008,31(6)
中山市公共信息服务平台是由中山市地理信息系统中心实施建设的网络三维可视化地理信息系统.目前该项目的一期工作已经启动,本文对其数据部署进行了初步探讨. 相似文献