• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Photosynthetica: International Journal for Photosynthesis Research >A comparison of photosynthetic capacity between Myrica gale var. tomentosa, a nitrogen-fixing shrub, and co-occurring species in an oligotrophic moor
【24h】

A comparison of photosynthetic capacity between Myrica gale var. tomentosa, a nitrogen-fixing shrub, and co-occurring species in an oligotrophic moor

机译：A comparison of photosynthetic capacity between Myrica gale var. tomentosa, a nitrogen-fixing shrub, and co-occurring species in an oligotrophic moor

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

摘要

Photosynthetic and transpiration (E) rates, stomatal conductance and leaf nitrogen content were surveyed for Myrica gale var. tomentosa, a N2-fixing wetland shrub, Betula platyphylla var. japonica and Rhododendron japonicum at Ozegahara moor, an oligotrophic moor in Central Japan, during the summers of 1995 and 1996. Net photosynthetic rate saturated with irradiance (Pmax) of M. gale was 15.2-16.5μmol(CO2) m-2 s-1, higher than those of the other non-nitrogen fixing species (8.7-13.6μmol CO2 m-2 s-1) throughout the growing season. Pmax was positively correlated with leaf N content among the 3 species. The large leaf N content in M. gale was due to N2-fixation in root nodules. In a comparison of M. gale in 2 habitats, Pmax, leaf N content and rootnodule development were greater in the wetter habitat. M. gale exhibited high E and no midday depression of Pmax even under high irradiance and large vapour pressure deficit between leaves and ambient air on a midsummer day. It is concluded that photosynthesis and water relations traits were associated with the dominance of this shrub in wetter sites such as stream sides and hollows.

著录项

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