DOI: 10.1016/j.foreco.2013.03.022
Scopus记录号: 2-s2.0-84884816813
论文题名: Tree species and diversity effects on soil water seepage in a tropical plantation
作者: Sprenger M. ; Oelmann Y. ; Weihermüller L. ; Wolf S. ; Wilcke W. ; Potvin C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 309 起始页码: 76
结束页码: 86
语种: 英语
英文关键词: Hydrus-1D
; Mixed-species stands
; Seepage
; Tree diversity
; Tropical tree plantation
; Water balance model
Scopus关键词: HYDRUS-1D
; Mixed-species stands
; Tree diversity
; Tropical tree
; Water balance models
; Biodiversity
; Computer simulation
; Forestry
; Mixtures
; Seepage
; Soil moisture
; Tropics
; Water conservation
; Water management
; Water supply
; Recharging (underground waters)
; biomass
; evapotranspiration
; evergreen forest
; flow modeling
; forest ecosystem
; hydrological modeling
; monoculture
; native species
; plantation forestry
; rainfall
; recharge
; seepage
; soil water
; species diversity
; water budget
; water storage
; Biodiversity
; Forestry
; Mixtures
; Moisture
; Plantations
; Seepage
; Soil
; Tropics
; Water Management
; Water Supply
; Colon [Panama]
; Panama [Central America]
; Sardinilla
; Hura crepitans
; Luehea seemannii
英文摘要: Plant diversity has been shown to influence the water cycle of forest ecosystems by differences in water consumption and the associated effects on groundwater recharge. However, the effects of biodiversity on soil water fluxes remain poorly understood for native tree species plantations in the tropics. Therefore, we estimated soil water fluxes and assessed the effects of tree species and diversity on these fluxes in an experimental native tree species plantation in Sardinilla (Panama). The study was conducted during the wet season 2008 on plots of monocultures and mixtures of three or six tree species. Rainfall and soil water content were measured and evapotranspiration was estimated with the Penman-Monteith equation. Soil water fluxes were estimated using a simple soil water budget model considering water input, output, and soil water and groundwater storage changes and in addition, were simulated using the physically based one-dimensional water flow model Hydrus-1D. In general, the Hydrus simulation did not reflect the observed pressure heads, in that modeled pressure heads were higher compared to measured ones. On the other hand, the results of the water balance equation (WBE) reproduced observed water use patterns well. In monocultures, the downward fluxes through the 200cm-depth plane were highest below Hura crepitans (6.13mmday-1) and lowest below Luehea seemannii (5.18mmday-1). The average seepage rate in monocultures (±SE) was 5.66±0.18mmday-1, and therefore, significantly higher than below six-species mixtures (5.49±0.04mmday-1) according to overyielding analyses. The three-species mixtures had an average seepage rate of 5.63±0.12mmday-1 and their values did not differ significantly from the average values of the corresponding species in monocultures. Seepage rates were driven by the transpiration of the varying biomass among the plots (r=0.61, p=0.017). Thus, a mixture of trees with different growth rates resulted in moderate seepage rates compared to monocultures of either fast growing or slow growing tree species. Our results demonstrate that tree-species specific biomass production and tree diversity are important controls of seepage rates in the Sardinilla plantation during the wet season. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66345
Appears in Collections: 影响、适应和脆弱性
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作者单位: Institute of Integrated Natural Sciences, Geography, University of Koblenz-Landau, Universitätsstr. 1, 56070 Koblenz, Germany; Geoecology, University of Tübingen, Rümelinstraße 19-23, 72070 Tübingen, Germany; Agrosphere Institute, Forschungszentrum Jülich, 52425 Jülich, Germany; Institute of Agricultural Sciences, ETH Zurich, Universitaetsstrasse 2, 8092 Zurich, Switzerland; Department of Environmental Science, Policy and Management, University of California, Berkeley, 130 Mulford Hall, Berkeley, CA 94720, United States; Geographic Institute, University of Berne, Hallerstrasse 12, 3012 Berne, Switzerland; Department of Biology and Global Environmental and Climate Change Centre, McGill University, 1205 Avenue du Docteur-Penfield, Montréal, QC H3A 1B1, Canada; Smithsonian Tropical Research Institute, Apartado, 2072 Balboa, Panama
Recommended Citation:
Sprenger M.,Oelmann Y.,Weihermüller L.,et al. Tree species and diversity effects on soil water seepage in a tropical plantation[J]. Forest Ecology and Management,2013-01-01,309