Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14457 |
Windthrows control biomass patterns and functional composition of Amazon forests | |
Marra, Daniel Magnabosco1,2,3; Trumbore, Susan E.1; Higuchi, Niro2; Ribeiro, Gabriel H. P. M.2; Negron-Juarez, Robinson I.4; Holzwarth, Frederic3; Rifai, Sami W.5; dos Santos, Joaquim2; Lima, Adriano J. N.2; Kinupp, Valdely F.6; Chambers, Jeffrey Q.4,7; Wirth, Christian3,8,9 | |
2018-12-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:12页码:5867-5881 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Brazil; USA; England |
英文摘要 | Amazon forests account for similar to 25% of global land biomass and tropical tree species. In these forests, windthrows (i.e., snapped and uprooted trees) are a major natural disturbance, but the rates and mechanisms of recovery are not known. To provide a predictive framework for understanding the effects of windthrows on forest structure and functional composition (DBH >= 10 cm), we quantified biomass recovery as a function of windthrow severity (i.e., fraction of windthrow tree mortality on Landsat pixels, ranging from 0%-70%) and time since disturbance for terra-firme forests in the Central Amazon. Forest monitoring allowed insights into the processes and mechanisms driving the net biomass change (i.e., increment minus loss) and shifts in functional composition. Windthrown areas recovering for between 4-27 years had biomass stocks as low as 65.2-91.7 Mg/ha or 23%-38% of those in nearby undisturbed forests (similar to 255.6 Mg/ha, all sites). Even low windthrow severities (4%-20% tree mortality) caused decadal changes in biomass stocks and structure. While rates of biomass increment in recovering vegetation were nearly double (6.3 +/- 1.4 Mg ha(-1) year(-1)) those of undisturbed forests (similar to 3.7 Mg ha(-1) year(-1)), biomass loss due to post-windthrow mortality was high (up to -7.5 +/- 8.7 Mg ha(-1) year(-1), 8.5 years since disturbance) and unpredictable. Consequently, recovery to 90% of "pre-disturbance" biomass takes up to 40 years. Resprouting trees contributed little to biomass recovery. Instead, light-demanding, low-density genera (e.g., Cecropia, Inga, Miconia, Pourouma, Tachigali, and Tapirira) were favored, resulting in substantial post-windthrow species turnover. Shifts in functional composition demonstrate that windthrows affect the resilience of live tree biomass by favoring soft-wooded species with shorter life spans that are more vulnerable to future disturbances. As the time required for forests to recover biomass is likely similar to the recurrence interval of windthrows triggering succession, windthrows have the potential to control landscape biomass/carbon dynamics and functional composition in Amazon forests. |
英文关键词 | biodiversity biomass/carbon dynamics and resilience forest blowdowns natural disturbances recovery dynamics tree mortality tropical forest ecosystems |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000449650600022 |
WOS关键词 | TROPICAL RAIN-FOREST ; BARRO-COLORADO-ISLAND ; WIND DISTURBANCE ; WOOD DENSITY ; ABOVEGROUND BIOMASS ; HURRICANE DISTURBANCE ; CATASTROPHIC WIND ; SPECIES-DIVERSITY ; LARGE BLOWDOWNS ; CYCLONE DAMAGE |
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/16825 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Max Planck Inst Biogeochem, Biogeochem Proc Dept, Jena, Germany; 2.Inst Nacl de Pesquisas da Amazonia, Lab Manejo Florestal, Manaus, Amazonas, Brazil; 3.Univ Leipzig, AG Spezielle Bot & Funkt Biodiversita, Leipzig, Germany; 4.Lawrence Berkeley Natl Lab, Climate & Ecosyst Sci Div, Berkeley, CA USA; 5.Univ Oxford, Environm Change Inst, Oxford, England; 6.Inst Fed Educ, Herbario EAFM, Ciencia & Tecnol Amazonas, Campus Manaus Zona Leste, Manaus, Amazonas, Brazil; 7.Univ Calif Berkeley, Geog Dept, Berkeley, CA 94720 USA; 8.German Ctr Integrat Biodivers Res iDiv, Leipzig, Germany; 9.Max Planck Inst Biogeochem, Funct Biogeog Fellow Grp, Jena, Germany |
推荐引用方式 GB/T 7714 | Marra, Daniel Magnabosco,Trumbore, Susan E.,Higuchi, Niro,et al. Windthrows control biomass patterns and functional composition of Amazon forests[J]. GLOBAL CHANGE BIOLOGY,2018,24(12):5867-5881. |
APA | Marra, Daniel Magnabosco.,Trumbore, Susan E..,Higuchi, Niro.,Ribeiro, Gabriel H. P. M..,Negron-Juarez, Robinson I..,...&Wirth, Christian.(2018).Windthrows control biomass patterns and functional composition of Amazon forests.GLOBAL CHANGE BIOLOGY,24(12),5867-5881. |
MLA | Marra, Daniel Magnabosco,et al."Windthrows control biomass patterns and functional composition of Amazon forests".GLOBAL CHANGE BIOLOGY 24.12(2018):5867-5881. |
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