GSTDTAP  > 气候变化
DOI10.1111/gcb.13660
Evaluation of climate-related carbon turnover processes in global vegetation models for boreal and temperate forests
Thurner, Martin1,2; Beer, Christian1,2; Ciais, Philippe3; Friend, Andrew D.4; Ito, Akihiko5; Kleidon, Axel6; Lomas, Mark R.7; Shaun Quegan7; Rademacher, Tim T.4; Schaphoff, Sibyll8; Tum, Markus9; Wiltshire, Andy10; Carvalhais, Nuno6,11
2017-08-01
发表期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
EISSN1365-2486
出版年2017
卷号23期号:8
文章类型Article
语种英语
国家Sweden; France; England; Japan; Germany; Portugal
英文摘要

Turnover concepts in state-of-the-art global vegetation models (GVMs) account for various processes, but are often highly simplified and may not include an adequate representation of the dominant processes that shape vegetation carbon turnover rates in real forest ecosystems at a large spatial scale. Here, we evaluate vegetation carbon turnover processes in GVMs participating in the Inter-Sectoral Impact Model Intercomparison Project (ISI-MIP, including HYBRID4, JeDi, JULES, LPJml, ORCHIDEE, SDGVM, and VISIT) using estimates of vegetation carbon turnover rate (k) derived from a combination of remote sensing based products of biomass and net primary production (NPP). We find that current model limitations lead to considerable biases in the simulated biomass and in k (severe underestimations by all models except JeDi and VISIT compared to observation-based average k), likely contributing to underestimation of positive feedbacks of the northern forest carbon balance to climate change caused by changes in forest mortality. A need for improved turnover concepts related to frost damage, drought, and insect outbreaks to better reproduce observation-based spatial patterns in k is identified. As direct frost damage effects on mortality are usually not accounted for in these GVMs, simulated relationships between k and winter length in boreal forests are not consistent between different regions and strongly biased compared to the observation-based relationships. Some models show a response of k to drought in temperate forests as a result of impacts of water availability on NPP, growth efficiency or carbon balance dependent mortality as well as soil or litter moisture effects on leaf turnover or fire. However, further direct drought effects such as carbon starvation (only in HYBRID4) or hydraulic failure are usually not taken into account by the investigated GVMs. While they are considered dominant large-scale mortality agents, mortality mechanisms related to insects and pathogens are not explicitly treated in these models.


英文关键词boreal and temperate forest climate-related spatial gradients drought stress and insect outbreaks forest mortality frost stress global vegetation model evaluation ISI-MIP remote sensing based NPP and biomass vegetation carbon turnover rate
领域气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000404863300012
WOS关键词NET PRIMARY PRODUCTION ; TERRESTRIAL ECOSYSTEM MODEL ; MOUNTAIN PINE-BEETLE ; GROWING STOCK VOLUME ; PRIMARY PRODUCTIVITY ; ABOVEGROUND BIOMASS ; PLANT RESPIRATION ; TROPICAL FORESTS ; MORTALITY-RATES ; FUTURE CLIMATE
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/17118
专题气候变化
资源环境科学
作者单位1.Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, Stockholm, Sweden;
2.Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden;
3.Lab Sci Climat & Environm LSCE, Gif Sur Yvette, France;
4.Univ Cambridge, Dept Geog, Cambridge, England;
5.Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan;
6.Max Planck Inst Biogeochem, Jena, Germany;
7.Univ Sheffield, Sch Math & Stat, Sheffield, S Yorkshire, England;
8.Potsdam Inst Climate Impact Res, Potsdam, Germany;
9.German Aerosp Ctr DLR, German Remote Sensing Data Ctr DFD, Wessling, Germany;
10.Met Off Hadley Ctr, Exeter, Devon, England;
11.Univ Nova Lisboa, Fac Cencias & Tecnol, Dept Ciencias & Engn, CENSE, Caparica, Portugal
推荐引用方式
GB/T 7714
Thurner, Martin,Beer, Christian,Ciais, Philippe,et al. Evaluation of climate-related carbon turnover processes in global vegetation models for boreal and temperate forests[J]. GLOBAL CHANGE BIOLOGY,2017,23(8).
APA Thurner, Martin.,Beer, Christian.,Ciais, Philippe.,Friend, Andrew D..,Ito, Akihiko.,...&Carvalhais, Nuno.(2017).Evaluation of climate-related carbon turnover processes in global vegetation models for boreal and temperate forests.GLOBAL CHANGE BIOLOGY,23(8).
MLA Thurner, Martin,et al."Evaluation of climate-related carbon turnover processes in global vegetation models for boreal and temperate forests".GLOBAL CHANGE BIOLOGY 23.8(2017).
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