globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.foreco.2014.02.008
Scopus记录号: 2-s2.0-84896861512
论文题名:
Effects of land-use and hydroperiod on aboveground biomass and productivity of secondary Amazonian floodplain forests
作者: Lucas C.M.; Schöngart J.; Sheikh P.; Wittmann F.; Piedade M.T.F.; McGrath D.G.
刊名: Forest Ecology and Management
ISSN:  0378-1127
出版年: 2014
卷: 319
起始页码: 116
结束页码: 127
语种: 英语
英文关键词: Carbon sequestration ; Community-based monitoring ; Subsidy-stress model ; Succession ; Várzea ; Wetland forests
Scopus关键词: Aboveground biomass ; Biomass accumulation ; Carbon sequestration ; Community-based monitoring ; Spatial variations ; Succession ; Tree diameter growth ; Wetland forests ; Banks (bodies of water) ; Biomass ; Ecosystems ; Floods ; Forestry ; aboveground biomass ; bioaccumulation ; carbon sequestration ; data set ; floodplain ; growth ; land use change ; succession ; wetland ; Biomass ; Ecosystems ; Floods ; Forestry ; Amazon Basin ; Brazil ; Mato Grosso ; Varzea Grande
英文摘要: Tropical floodplain forests are productive and diverse ecosystems for which there is scant data on biomass, carbon sequestration, and potential abiotic and human drivers. We used a regression approach to test the effects of seasonal flood duration, forest age, and livestock activity on aboveground biomass (AGB) and annual biomass accumulation (ABA) in 49 plots of 0.1ha in secondary floodplain forests of the Lower Amazon over nine years. AGB averaged 226±87Mgha-1 among forests 30-120years old. An intermediate peak model explained spatial variation in AGB, peaking in moderately flooded (70-140dy-1) forests. Flood duration was the key explanatory factor for AGB across all plots. In contrast, forest age and its interaction with flood duration affected net ABA, which declined from 10.3±4.3 to -6.2±11.1Mgha-1y-1 with increasing age. Tree diameter growth comprised 95±4% of total ABA, which declined with increasing flood duration and increasing forest age. Overall, forests had a high capacity to capture carbon, accumulating 16.4±7.1Mgha-1y-1 in AGB, but had high turnover of biomass at 76±81% of AGB per year. There was no strong evidence for differences in biomass accumulation due to livestock activity. We fill a major geographical gap for ground-based data on biomass of flooded forests, which comprise 11% of the Amazon Basin, and also provide an example of community-based monitoring for carbon storage in human-dominated tropical floodplain ecosystems. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66031
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Wildlife and Conservation, University of Florida, P.O. Box 110430, Gainesville, FL 32611, United States; Max Planck Institute for Chemistry, Biogeochemistry Department, P.O. Box 3060, 55020 Mainz, Germany; Pennsylvania State University, Department of Biology, 208 Mueller Lab, University Park, PA 16802-5301, United States; Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo 2936, 69011-970 Manaus, AM, Brazil; Woods Hole Research Center, 149 Woods Hole Road, Falmouth, MA 02540-1644, United States; Congressional Research Service, The Library of Congress, 101 Independence Avenue, SE, Washington, DC 20540-7500, United States

Recommended Citation:
Lucas C.M.,Schöngart J.,Sheikh P.,et al. Effects of land-use and hydroperiod on aboveground biomass and productivity of secondary Amazonian floodplain forests[J]. Forest Ecology and Management,2014-01-01,319
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