全文获取类型
收费全文 | 184篇 |
免费 | 1篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 3篇 |
废物处理 | 1篇 |
环保管理 | 7篇 |
综合类 | 119篇 |
基础理论 | 31篇 |
污染及防治 | 18篇 |
评价与监测 | 3篇 |
社会与环境 | 5篇 |
出版年
2017年 | 3篇 |
2016年 | 2篇 |
2015年 | 5篇 |
2014年 | 5篇 |
2013年 | 4篇 |
2011年 | 6篇 |
2010年 | 2篇 |
2009年 | 6篇 |
2008年 | 2篇 |
2006年 | 4篇 |
2005年 | 4篇 |
2002年 | 6篇 |
2001年 | 3篇 |
2000年 | 2篇 |
1999年 | 8篇 |
1998年 | 4篇 |
1996年 | 3篇 |
1995年 | 4篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1974年 | 2篇 |
1970年 | 3篇 |
1969年 | 2篇 |
1968年 | 2篇 |
1967年 | 4篇 |
1966年 | 5篇 |
1965年 | 3篇 |
1964年 | 8篇 |
1963年 | 2篇 |
1962年 | 5篇 |
1961年 | 4篇 |
1960年 | 3篇 |
1959年 | 4篇 |
1958年 | 2篇 |
1957年 | 4篇 |
1956年 | 5篇 |
1955年 | 5篇 |
1954年 | 5篇 |
1953年 | 2篇 |
1952年 | 4篇 |
1948年 | 1篇 |
1943年 | 2篇 |
1941年 | 2篇 |
1939年 | 1篇 |
1936年 | 3篇 |
1933年 | 1篇 |
1930年 | 2篇 |
1929年 | 1篇 |
1928年 | 3篇 |
1920年 | 1篇 |
排序方式: 共有187条查询结果,搜索用时 15 毫秒
181.
182.
183.
184.
185.
186.
C. Price Y. Yair A. Mugnai K. Lagouvardos M.C. Llasat S. Michaelides U. Dayan S. Dietrich E. Galanti L. Garrote N. Harats D. Katsanos M. Kohn V. Kotroni M. Llasat-Botija B. Lynn L. Mediero E. Morin K. Nicolaides S. Rozalis K. Savvidou B. Ziv 《Environmental Science & Policy》2011,14(7):898-911
The FLASH project was implemented from 2006 to 2010 under the EU FP6 framework. The project focused on using lightning observations to better understand and predict convective storms that result in flash floods. As part of the project 23 case studies of flash floods in the Mediterranean region were examined. For the analysis of these storms lightning data from the ZEUS network were used together with satellite derived rainfall estimates in order to understand the storm development and electrification. In addition, these case studies were simulated using mesoscale meteorological models to better understand the meteorological and synoptic conditions leading up to these intense storms. As part of this project tools for short term predictions (nowcasts) of intense convection across the Mediterranean and Europe, and long term forecasts (a few days) of the likelihood of intense convection were developed. The project also focused on educational outreach through our website http://flashproject.org supplying real time lightning observations, real time experimental nowcasts, forecasts and educational materials. While flash floods and intense thunderstorms cannot be prevented as the climate changes, long-range regional lightning networks can supply valuable data, in real time, for warning end-users and stakeholders of imminent intense rainfall and possible flash floods. 相似文献
187.
Arable land in Bhutan is under serious threats of land degradation. Proper land management approach is needed to control soil erosion problems. This study is an attempt to characterize and document the conventional and the community-based land management approaches, applied in Chukha and Dagana districts, respectively. The study tried to make a comparative assessment of their social, economic and environmental impacts on the participating farmers. Farmers’ level of participation in the program, implementation of the soil erosion control measures (SECM) and subsequent social, economic and environmental impacts were found to be significantly influenced by the type of approach applied. The study found that community-based approach is by any means better suited for the study sites than the conventional approach. The social, economic and environmental attributes of respondents from the community-based approach were found to have improved significantly as compared to the conventional approach. The community-based approach was thus found to have a higher potential to meet the diverse requirements of rural subsistence farming communities in Bhutan than the conventional approach. 相似文献