全文获取类型
| 收费全文 | 214篇 |
| 免费 | 6篇 |
| 国内免费 | 13篇 |
专业分类
| 测绘学 | 1篇 |
| 大气科学 | 3篇 |
| 地球物理 | 14篇 |
| 地质学 | 4篇 |
| 海洋学 | 201篇 |
| 综合类 | 3篇 |
| 自然地理 | 7篇 |
出版年
| 2023年 | 1篇 |
| 2022年 | 1篇 |
| 2021年 | 2篇 |
| 2020年 | 7篇 |
| 2019年 | 1篇 |
| 2018年 | 3篇 |
| 2017年 | 6篇 |
| 2016年 | 2篇 |
| 2015年 | 8篇 |
| 2014年 | 4篇 |
| 2013年 | 25篇 |
| 2011年 | 4篇 |
| 2010年 | 2篇 |
| 2009年 | 21篇 |
| 2008年 | 11篇 |
| 2007年 | 18篇 |
| 2006年 | 5篇 |
| 2005年 | 12篇 |
| 2004年 | 8篇 |
| 2003年 | 8篇 |
| 2002年 | 9篇 |
| 2001年 | 16篇 |
| 2000年 | 20篇 |
| 1999年 | 5篇 |
| 1998年 | 5篇 |
| 1997年 | 3篇 |
| 1996年 | 5篇 |
| 1995年 | 5篇 |
| 1994年 | 1篇 |
| 1993年 | 3篇 |
| 1992年 | 3篇 |
| 1991年 | 1篇 |
| 1986年 | 1篇 |
| 1985年 | 2篇 |
| 1984年 | 3篇 |
| 1983年 | 2篇 |
排序方式： 共有233条查询结果，搜索用时 15 毫秒
61.
62.
Changes in North Sea gadoid stocks 总被引：5，自引：1，他引：5
63.
Abstract. Three mechanisms aiding recovery and expansion of a population of Acropora palmata on a patch reef that was directly in the path of Hurricane Andrew were documented: rapid wound healing, high rates of asexual recruitment, and rapid growth rate of the new recruits. In addition, the growth pattern of new recruits was assessed in order to quantify the initial sequence of Structural changes during the transition from recruit to adult morphology. Wound healing was initially rapid (1.59 cm of linear growth per month). but slowed with time. Nine months after the storm, 72% of 218 hurricane-generated fragments of A. palmata had cemented to the bottom, becoming new asexual recruits. Within 18 months of the storm, the number of fragments in the same area had increased to 271, average fragment size was larger, and 94% had become recruits. Recruits showed complex patterns of branch formation, including rapid growth of solitary proto-branches, differential growth of proto-branches dependent on recruit orientation, and dominance within aggregates of proto-branches. We present a conceptual model that suggests A. palmata is adapted to disturbances of both low intensity and high frequency (conditions typical of reef flat zones) and episodic high intensity and low frequency events (hurricanes and tropical storms). 相似文献
64.
65.
66.
67.
68.
69.
70.