Trophic interrelationships drive the biogeography of protistan community in agricultural ecosystems
文献类型：期刊论文
| 作者 | Chen, Beibei; Xiong, Wu; Qi, Jiejun; Pan, Haibo; Chen, Shi; Peng, Ziheng; Gao, Hang; Zhang, Limei; Jiang, Yuji; Wei, Gehong |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2021 |
| 卷号 | 131页码:- |
| 关键词 | Vegetation dynamics Inconsistent trends Productivity Greenness Carbon cycle |
| ISSN号 | 1470-160X |
| 英文摘要 | Rapidly altering vegetation dynamics, is an aspect of global environmental change which has consequences for ecosystem structure, function, and the provision of ecosystem services. However, the responses of vegetation greenness and vegetation productivity to environmental changes may be inconsistent. Currently, we do not know how these inconsistent trends of greenness and productivity vary across the globe, nor the main causes of that variability. We used leaf area index (LAI) and net primary productivity (NPP) to represent vegetation greenness and productivity, respectively. The results showed that about 42% of the global vegetated area showed incon-sistent trends of LAI and NPP from 2000 to 2015. These inconsistent trends were mainly found in humid areas. A parabolic relationship was found between the NPP and LAI of global vegetation, with a turning point in LAI of global vegetation of 4.5 +/- 0.4 m(2) m(-2). The ratio of NPP to LAI (NPP/LAI), net primary production per unit leaf area, decreases as the LAI increases. The variability of NPP/LAI is significantly correlated with the consistency of NPP and LAI changes in different land cover types. NPP/LAI is lower in tree-dominated biomes with higher canopies (such as forests), and higher in areas dominated by short vegetation (such as shrubland and grassland). Drylands have higher NPP/LAI than humid regions which are perhaps due to high rates of net photosynthesis and narrow leaves. The results of this study not only clearly portray the relationship between vegetation greenness and productivity but also help us to understand the impact of vegetation dynamics on global carbon cycling in a changing environment. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46772]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Nanjing Agr Univ, Jiangsu Prov Key Lab Solid Organ Waste Utilizat, Jiangsu Collaborat Innovat Ctr Solid Organ Wastes, Educ Minist,Engn Ctr Resource Saving Fertilizers, Nanjing 210095, Jiangsu, Peoples R China 5.Northwest A&F Univ, Coll Life Sci, State Key Lab Crop Stress Biol Arid Areas, Shaanxi Key Lab Agr & Environm Microbiol, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Beibei,Xiong, Wu,Qi, Jiejun,et al. Trophic interrelationships drive the biogeography of protistan community in agricultural ecosystems[J]. SOIL BIOLOGY & BIOCHEMISTRY,2021,131:-. |
| APA | Chen, Beibei.,Xiong, Wu.,Qi, Jiejun.,Pan, Haibo.,Chen, Shi.,...&Jiao, Shuo.(2021).Trophic interrelationships drive the biogeography of protistan community in agricultural ecosystems.SOIL BIOLOGY & BIOCHEMISTRY,131,-. |
| MLA | Chen, Beibei,et al."Trophic interrelationships drive the biogeography of protistan community in agricultural ecosystems".SOIL BIOLOGY & BIOCHEMISTRY 131(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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