...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of arid environments >The Effect Of Microhabitats On Vegetation And Its Relationships With Seedlings And Soil Seed Bank In A Mediterranean Coastal Sand Dune Community
【24h】

The Effect Of Microhabitats On Vegetation And Its Relationships With Seedlings And Soil Seed Bank In A Mediterranean Coastal Sand Dune Community

机译：地中海沿海沙丘群落中微生境对植被的影响及其与幼苗和土壤种子库的关系

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We examined species composition and diversity of vegetation and soil seed bank associated with different microhabitats in Mediterranean semiarid sand dune community, to identify which functional groups or species benefit from trampling, and to provide a basis for management. In this community microhabitats were found to significantly influence species abundance and biomass of dominant functional groups and dominant species. The open patches generally have the greatest species richness, diversity and productivity. The highest value of similarity occurred during June to September and the lowest value occurred in April when seedling emergence stopped but before new seeds dispersed. Shrubs did not benefit their understorey plant functional groups except for perennial forbs and Apiaceae due to their denser canopy and larger litter amount. Trampling decreased the species diversity of vegetation and did not facilitate the establishment of herbaceous plants, but was beneficial for some functional groups such as Apiaceae and Brassicaceae as well as some species such as Polycarpon succulentum. A positive relationship was found between productivity and diversity in this community and on the trail, but the relationship in the open area and shrub understorey was not significant. This work can provide a deeper understanding of small-scale vegetation processes and mosaic patterns of distribution.
机译：我们研究了地中海半干旱沙丘群落中与不同微生境相关的植被和土壤种子库的物种组成和多样性，以确定哪些功能群或物种受益于践踏，并提供了管理依据。在该群落中，发现微生境可显着影响优势功能群和优势物种的物种丰度和生物量。开放的斑块通常具有最大的物种丰富性，多样性和生产力。相似度的最大值出现在6月至9月之间，而最小值发生在4月，此时幼苗出苗停止了，但没有新种子散开。灌木由于多年生的树冠和伞形科更浓密，凋落物数量更多，因此没有使它们的植物下层功能组受益。踩踏降低了植被的物种多样性，不利于草本植物的建立，但对某些功能组（如A科和十字花科）以及某些物种（如多果）有好处。在该社区和沿途发现生产力与多样性之间存在正相关关系，但在开阔地带和灌木林下层之间的关系并不显着。这项工作可以更深入地了解小规模植被过程和马赛克分布模式。

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