DOI: 10.1016/j.foreco.2014.08.011
Scopus记录号: 2-s2.0-84908344273
论文题名: Regeneration of riparian forests of the Brazilian Pantanal under flood and fire influence
作者: Oliveira M.T.D. ; Damasceno-Junior G.A. ; Pott A. ; Paranhos Filho A.C. ; Suarez Y.R. ; Parolin P.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 331 起始页码: 256
结束页码: 263
语种: 英语
英文关键词: Burning
; Inundation
; Pantanal
; Resprouting
; Wetland
; Wildfire
Scopus关键词: Wetlands
; Fire influence
; Inundation
; Pantanal
; Resprouting
; Riparian forests
; Wildfire
; Combustion
; abundance
; burning
; community composition
; ecosystem function
; fire behavior
; flood
; flooding
; plant community
; population distribution
; regeneration
; resprouting
; riparian forest
; savanna
; species richness
; wetland management
; wildfire
; Pantanal
英文摘要: Flood and fire are considered ecological filters and can shape the structure of plant communities in tropical wetlands and floodable savannas, especially on regeneration. However, in systems exposed to recurrent flood and fire, there is little information on the vegetation effects and implications for management. To test the effects of fire on flood-prone riparian forests of the Brazilian Pantanal, we analyzed how natural flood and fire can interact and influence species composition, abundance, and richness of the woody regeneration. This neotropical savanna wetland is subjected to annual and predictable flood pulses and to occasional wildfires. We established 106 plots (2×5m) within the riparian forest of the Paraguay River in burned (recurrent) and unburned areas from 2001 to 2011 (verified on satellite images). We compared the plot topography with historic data of river levels from Ladário gauge in the same period. We sampled all trees, shrubs, and lianas from 0.3 to 2.5m high. Flood in plots varied from 38 (higher areas) to 98 (lower areas) daysyear-1. Our results show that variation in flood duration and occurrence of fire interact in a synergistic manner to reduce stem numbers on regeneration and modify species composition and distribution. Species richness differed in relation to flood duration, but not to fire. All growth forms had low number of exclusive species in both unburned and burned sites. Our results have implications for wetland management. The natural flooding regime is responsible for the diversity of habitats and species. Changes of the hydrology due to land management or climatic changes may result in changes of fire regime with consequences for the analyzed vegetation patterns and ecosystem functions. This neotropical savanna wetland system is stable and resilient as long as its natural patterns and periodicities of flooding and wildfires are maintained. Our results point to the necessity to analyze the interacting effects of selective environmental forces in order to be able to preserve the form and functions of the huge wetlands of the Pantanal. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65747
Appears in Collections: 影响、适应和脆弱性
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作者单位: Laboratório de Botânica, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Cidade Universitária s/n Caixa Postal 549, Campo Grande MS, Brazil; Laboratório de Geoprocessamento para Aplicações Ambientais, FAENG, UFMS, Cidade Universitária s/n Caixa Postal 549, Campo Grande MS, Brazil; Universidade Estadual de Mato Grosso do Sul, Centro Integrado de Análise e Monitoramento Ambiental, Rod. Dourados-Itahum km 12 Cidade Universitária, Dourados MS, Brazil; French National Institute for Agricultural Research (INRA), Theoretical and Applied Ecology in Protected Environments and Agrosystems (TEAPEA), Nice, France; Biodiversity Evolution and Ecology of Plants, University of Hamburg, Ohnhorststrasse 18, Hamburg, Germany
Recommended Citation:
Oliveira M.T.D.,Damasceno-Junior G.A.,Pott A.,et al. Regeneration of riparian forests of the Brazilian Pantanal under flood and fire influence[J]. Forest Ecology and Management,2014-01-01,331