您好，欢迎访问吉林省农业科学院 机构知识库！
吉林省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Effects of nitrogen deposition on carbon allocation between wood and leaves in temperate forests

文献类型： 外文期刊

作者： Gao, Meixia 1 ; Zhu, Feifei 1 ; Hobbie, Erik A. 5 ; Zhu, Weixing 1 ; Li, Shanlong 7 ; Gurmesa, Geshere A. 1 ; Wang, Ang 1 ; Fang, Xiaoming 1 ; Zhu, Jiaojun 1 ; Gundersen, Per 8 ; Huang, Kai 1 ; Wu, Zhou 1 ; Fang, Yunting 1 ;

作者机构： 1.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Liaoning, Peoples R China

2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

3.Qingyuan Forest CERN, Natl Observat & Res Stn, Shenyang 110016, Liaoning, Peoples R China

4.Key Lab Stable Isotope Tech & Applicat, Shenyang 110016, Liaoning, Peoples R China

5.Univ New Hampshire, Earth Syst Res Ctr, Morse Hall, Durham, NH 03824 USA

6.SUNY Binghamton, Dept Biol Sci, Binghamton, NY 13902 USA

7.Jilin Acad Agr Sci, Inst Agr Resources & Environm, Changchun, Jilin, Peoples R China

8.Univ Copenhagen, Dept Geosci & Nat Resource Management, Frederiksberg C, Denmark

关键词： carbon allocation; C-N response; litterfall production; nitrogen deposition; temperate forests; tree growth; woody biomass increment

期刊名称：PLANTS PEOPLE PLANET （ 影响因子：5.695； 五年影响因子：5.695 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Societal Impact Statement Increasing atmospheric nitrogen (N) deposition represents a major global change factor, but its long-term effect on tree growth and carbon (C) sequestration remains uncertain. Our manipulation experiment and meta-analysis reveal that N deposition in temperate and boreal forests promoted tree growth and the allocation of more C into wood than into leaves in China and worldwide. Thus, N deposition may increase forest C sequestration through enhanced wood production and distribution of C into stable sinks. In the context of achieving "Carbon Neutrality," understanding how N deposition affect long-term forest C sinks will help us with mitigation strategies under climate change. Increased nitrogen (N) deposition is driving many temperate and boreal forests in the Northern Hemisphere towards N saturation. However, it is uncertain how long-term N deposition affects tree growth and carbon (C) allocation in these forests. To investigate this, we treated temperate larch and mixed forests in northeastern China with N additions for 8 years. In addition, we collected data from 25 N-addition experiments in temperate and boreal forests worldwide to reveal the overall effects of N on tree growth and C allocation. Nitrogen additions significantly promoted total biomass increment by 24% in both study forests, with on average additional 8 kg C per kg N gain into woody biomass over the study period. Nitrogen additions increased the ratio of woody biomass increment to foliage litterfall production in the larch forest (by 34%). Literature data analysis also revealed greater N promotion on wood (24%) over foliage (9%) production. However, the positive effect on foliage diminished over time. These results combined imply that N deposition may promote tree growth in temperate and boreal regions and drive proportionally more photosynthate allocation into wood than leaves, thus may enhance forest C sequestration in the long run.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：吉林省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台