• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Australian Weeds Conferences >Weeds getting steamed-up in the tropics: climate change effects on ecosystem water use efficiency and woody plant range
【24h】

Weeds getting steamed-up in the tropics: climate change effects on ecosystem water use efficiency and woody plant range

机译：杂草在热带地区蒸汽：气候变化对生态系统用水效率和木质植物范围的影响

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

摘要

Ironically, the aspect of global climate change that we are most certain about, that there will be increasing concentrations of atmospheric CO_2 is also the factor about which we know the least in terms of its impact on weed competition. Increasing concentrations of atmospheric CO_2 ([CO_2]) is thought to lead to the carbon fertilisation effect (CFE) and increasing water use efficiency (WUE). However, the extent to which desirable plants and weeds will benefit, and how these effects are distributed throughout the plant kingdom are uncertain. CLIMEX was used to explore the effect of increasing ecosystem water use efficiency (eWUE) on the potential distribution of three tropical weed species. In the tropics, increases in eWUE may have very little effect on weed distribution compared with the projected changes in temperature and rainfall if plants use the 'extra' soil moisture to fuel additional growth. The effects of increasing CO_2 on tropical shrubs requires urgent research attention in realistic,competitive field situations to assess the vulnerability of primary production and biodiversity conservation sectors.
机译：具有讽刺意味的是，我们最肯定的全球气候变化的方面，即将增加大气CO_2的浓度也是我们至少在对杂草竞争的影响方面所了解的因素。据认为，增加浓度的大气CO_2（[CO_2]）导致碳施肥效应（CFE）和增加的用水效率（WUE）。然而，所需的植物和杂草将受益的程度，以及如何在整个植物王国中分发这些效果是不确定的。 CLIMEX用于探讨增加生态系统用水效率（EWUE）对三种热带杂草物种的潜在分布的影响。在热带地区，与植物利用“额外”土壤水分燃料额外生长，eWue的增加可能对杂草分配的影响很大。增加Co_2对热带灌木的影响需要在现实，竞争的现场情况下进行紧急研究，以评估初级生产和生物多样性保护部门的脆弱性。

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