Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aabc61 |
The importance of forest structure for carbon fluxes of the Amazon rainforest | |
Roedig, Edna1; Cuntz, Matthias1,2; Rammig, Anja3,4; Fischer, Rico1; Taubert, Franziska1; Huth, Andreas1,5,6 | |
2018-05-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; France |
英文摘要 | Precise descriptions of forest productivity, biomass, and structure are essential for understanding ecosystem responses to climatic and anthropogenic changes. However, relations between these components are complex, in particular for tropical forests. We developed an approach to simulate carbon dynamics in the Amazon rainforest including around 410 billion individual trees within 7.8 million km(2). We integrated canopy height observations from space-borne LIDAR in order to quantify spatial variations in forest state and structure reflecting small-scale to large-scale natural and anthropogenic disturbances. Under current conditions, we identified the Amazon rainforest as a carbon sink, gaining 0.56 GtC per year. This carbon sink is driven by an estimated mean gross primary productivity (GPP) of 25.1 tC ha(-1) a(-1), and a mean woody aboveground net primary productivity (wANPP) of 4.2 tC ha(-1) a(-1). We found that successional states play an important role for the relations between productivity and biomass. Forests in early to intermediate successional states are the most productive, and woody above-ground carbon use efficiencies are non-linear. Simulated values can be compared to observed carbon fluxes at various spatial resolutions (> 40 m). Notably, we found that our GPP corresponds to the values derived from MODIS. For NPP, spatial differences can be observed due to the consideration of forest successional states in our approach. We conclude that forest structure has a substantial impact on productivity and biomass. It is an essential factor that should be taken into account when estimating current carbon budgets or analyzing climate change scenarios for the Amazon rainforest. |
英文关键词 | Amazonia forest structure carbon fluxes tropical forests forest gap model remote sensing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000431143100001 |
WOS关键词 | DROUGHT SENSITIVITY ; WOODY BIOMASS ; DENSITY ; GROWTH ; DEFORESTATION ; PRODUCTIVITY ; DISTURBANCE ; EMISSIONS ; ECOSYSTEM ; DYNAMICS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/33247 |
专题 | 气候变化 |
作者单位 | 1.UFZ Helmholtz Ctr Environm Res, Permoserstr 15, D-04318 Leipzig, Germany; 2.Univ Lorraine, INRA, AgroParisTech, UMR Silva, F-54000 Nancy, France; 3.Tech Univ Munich, TUM Sch Life Sci Weihenstephan, Hans Carl von Carlowitz Pl 2, D-85354 Freising Weihenstephan, Germany; 4.Potsdam Inst Climate Impact Res PIK, Telegraphenberg A62, D-14473 Potsdam, Germany; 5.Univ Osnabruck, Barbarastr 12, D-49076 Osnabruck, Germany; 6.German Ctr Integrat Biodivers Res iDiv, Deutsch Pl 5E, D-04103 Leipzig, Germany |
推荐引用方式 GB/T 7714 | Roedig, Edna,Cuntz, Matthias,Rammig, Anja,et al. The importance of forest structure for carbon fluxes of the Amazon rainforest[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(5). |
APA | Roedig, Edna,Cuntz, Matthias,Rammig, Anja,Fischer, Rico,Taubert, Franziska,&Huth, Andreas.(2018).The importance of forest structure for carbon fluxes of the Amazon rainforest.ENVIRONMENTAL RESEARCH LETTERS,13(5). |
MLA | Roedig, Edna,et al."The importance of forest structure for carbon fluxes of the Amazon rainforest".ENVIRONMENTAL RESEARCH LETTERS 13.5(2018). |
条目包含的文件 | 条目无相关文件。 |
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