• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International symposium on remote sensing of environment;ISRSE-33 >Assessment of the impact of hurricanes on light regime and biomass in tropical forest ecosystems: a Puerto Rico case-study
【24h】

Assessment of the impact of hurricanes on light regime and biomass in tropical forest ecosystems: a Puerto Rico case-study

机译：飓风对热带森林生态系统的光照和生物量的影响评估：波多黎各案例研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Many forests experience periodic, large-scale disturbances, such as hurricanes and cyclones, that open the forest canopy, causing dramatic increases in understory light availability and seedling densities. In hurricane-impacted forests, large variations in (a)biotic conditions likely shape seedling dynamics, which in turn will determine patterns of forest recovery. We monitored 13,836 seedlings of 82 tree and shrub species over ten years following Hurricane Georges in a sub-tropical forest in north-eastern Puerto Rico. We quantified changes in the biotic and abiotic environment of the understory and linked seedling dynamics to changes in light availability and seedling density, and to spatial variation in soil type, topography, and tree density. The results of our study suggest that hurricanes shape species composition through indirect effects on understory conditions that differentially influence the success of seedlings. Thus, predicted increases in the intensity and frequency of hurricanes in the Caribbean will likely alter seedling dynamics and species composition in hurricane-impacted forests.
机译：许多森林会遭受周期性的大规模干扰，例如飓风和旋风，这会打开森林冠层，导致林下光的可利用性和幼苗密度急剧增加。在受飓风影响的森林中，（a）生物条件的较大差异可能会影响幼苗的动态，进而决定森林的恢复方式。在飓风乔治袭击波多黎各东北亚热带森林后的十年中，我们监测了82种树木和灌木树种的13836株幼苗。我们量化了林下生物和非生物环境的变化，并将幼苗动态与光利用率和幼苗密度的变化以及土壤类型，地形和树木密度的空间变化联系起来。我们的研究结果表明，飓风通过对林下条件的间接影响来塑造物种组成，这些条件对幼苗的成功产生不同的影响。因此，预计加勒比海飓风强度和频率的增加可能会改变受飓风影响的森林的幼苗动态和物种组成。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号