期刊
FUNCTIONAL PLANT BIOLOGY
卷 43, 期 11, 页码 1082-1090出版社
CSIRO PUBLISHING
DOI: 10.1071/FP16097
关键词
leaf economics; leaf hydraulic conductance; nutrient use efficiency; photosynthesis; water use efficiency
资金
- National Key Research and Development Program of the Ministry of Science and Technology of China [2016YFD0600201]
- Program for Changjiang Scholars and Innovative Research Team in Universities [IRT_15R09]
- Fundamental Research Funds for the Central Universities [2572015AA16]
Exploring relationships between leaf hydraulics and economic traits is important in understanding the carbon-water coupling and in extending the leaf economics spectrum. In this study, leaf hydraulics, photosynthesis, structural and nutrient traits and photosynthetic resource use efficiency were measured for 10 temperate tree species in the north-eastern China. Leaf hydraulic conductance was positively correlated with photosynthetic traits, specific leaf area, leaf nitrogen concentration, photosynthetic water and nitrogen use efficiencies, suggesting co-ordination between leaf hydraulics and economic traits. Principal component analysis revealed that significant correlations existed among leaf hydraulic, photosynthetic and resource use traits (axis 1), and axis 2 was strongly associated with leaf structural and nutrient traits. The 10 species were distributed along the diagonal line between axis 1 and axis 2. Species displaying the fast' strategy tended to have higher photosynthetic rates, leaf hydraulic conductance and photosynthetic water and nutrient use efficiencies; however, they also had lower carbon investment and faced a greater risk of embolism. These findings indicate that leaf hydraulics, economics and resource uses together play an important role in determining species ecological strategies, and provide supports for the fast-slow' leaf economics spectrum.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据