中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Climate Sensitivities of Carbon Turnover Times in Soil and Vegetation: Understanding Their Effects on Forest Carbon Sequestration

文献类型：期刊论文

作者Ge, Rong1,2,3; He, Honglin1,4,5; Zhang, Li1,4; Ren, Xiaoli1,4; Williams, Mathew6,7; Yu, Guirui1; Smallman, T. Luke6,7; Zhou, Tao8; Li, Pan9; Xie, Zongqiang10
刊名JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
出版日期2022-03-01
卷号127期号:3页码:20
ISSN号2169-8953
关键词soil carbon turnover time vegetation carbon turnover time climate sensitivity forest carbon sequestration
DOI10.1029/2020JG005880
通讯作者He, Honglin(hehl@igsnrr.ac.cn) ; Zhang, Li(li.zhang@igsnrr.ac.cn)
英文摘要The high uncertainty associated with the response of terrestrial carbon (C) cycle to climate is dominated by ecosystem C turnover time (tau(eco)). Although the relationship between tau(eco) and climate has been extensively studied, significant knowledge gaps remain regarding the differential climate sensitivities of turnover time in major biomass (tau(veg)) and soil (tau(soil)) pools, and their effects on vegetation and soil C sequestration under climate change are poorly understood. Here, we collected multiple time series observations on soil and vegetation C from permanent plots in 10 Chinese forests and used model-data fusion to retrieve key C cycle process parameters that regulate tau(soil) and tau(veg). Our analysis showed that tau(veg) and tau(soil) both decreased with increasing temperature and precipitation, and tau(soil) was more than twice as sensitive (1.27 years/degrees C, 1.70 years/100 mm) than tau(veg) (0.53 years/degrees C, 0.40 years/100 mm). The higher climate sensitivity of tau(soil) caused a more rapid decrease in tau(soil) than in tau(veg) with increasing temperature and precipitation, thereby significantly reducing the difference between tau(soil) and tau(veg) (tau(diff)) under warm and humid conditions. tau(diff), an indicator of the balance between the soil C input and exit rate, was strongly responsible for the variation (more than 50%) in soil C sequestration. Therefore, a smaller tau(diff) under warm and humid conditions suggests a relatively lower contribution from soil C sequestration. This information has strong implications for understanding forest C-climate feedback, predicting forest C sink distributions in soil and vegetation under climate change, and implementing C mitigation policies in forest plantations or soil conservation.
WOS关键词GROSS PRIMARY PRODUCTIVITY ; DATA ASSIMILATION SYSTEM ; INDUCED TREE MORTALITY ; ORGANIC-MATTER ; TEMPERATURE SENSITIVITY ; RESIDENCE TIME ; RADIOCARBON CONSTRAINTS ; TERRESTRIAL ECOSYSTEMS ; NUTRIENT AVAILABILITY ; EDDY COVARIANCE
资助项目National Natural Science Foundation of China[42030509] ; National Key Research and Development Program of China[2021YFF0703903] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19020301] ; Newton Fund CSSP, from the Royal Society ; UKSA Forests 2020
WOS研究方向Environmental Sciences & Ecology ; Geology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000777487700014
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Newton Fund CSSP, from the Royal Society ; UKSA Forests 2020
源URL[http://ir.igsnrr.ac.cn/handle/311030/174082]  
专题中国科学院地理科学与资源研究所
通讯作者He, Honglin; Zhang, Li
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
2.Nanjing Audit Univ, Sch Govt Audit, Inst Nat Resources & Environm Audits, Nanjing, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Natl Ecosyst Sci Data Ctr, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
6.Univ Edinburgh, Sch GeoSci, Edinburgh, Midlothian, Scotland
7.Univ Edinburgh, Natl Ctr Earth Observat, Edinburgh, Midlothian, Scotland
8.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China
9.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin, Peoples R China
10.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Ge, Rong,He, Honglin,Zhang, Li,et al. Climate Sensitivities of Carbon Turnover Times in Soil and Vegetation: Understanding Their Effects on Forest Carbon Sequestration[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2022,127(3):20.
APA Ge, Rong.,He, Honglin.,Zhang, Li.,Ren, Xiaoli.,Williams, Mathew.,...&Lin, Luxiang.(2022).Climate Sensitivities of Carbon Turnover Times in Soil and Vegetation: Understanding Their Effects on Forest Carbon Sequestration.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,127(3),20.
MLA Ge, Rong,et al."Climate Sensitivities of Carbon Turnover Times in Soil and Vegetation: Understanding Their Effects on Forest Carbon Sequestration".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 127.3(2022):20.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。