DOI: 10.1016/j.foreco.2015.01.005
Scopus记录号: 2-s2.0-84922553289
论文题名: Post-fire regeneration dynamics of tree species in a tropical dry deciduous forest, Western Ghats, India
作者: Verma S. ; Jayakumar S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 341 起始页码: 75
结束页码: 82
语种: 英语
英文关键词: Dry deciduous forest
; Fire frequency
; Forest fire
; Regeneration
; Western Ghats
Scopus关键词: Biodiversity
; Deforestation
; Fire hazards
; Fires
; Reforestation
; Tropics
; Dry deciduous forests
; Fire frequencies
; Forest fires
; Regeneration
; Western ghats
; Forestry
; basal area
; deciduous forest
; diversity index
; dominance
; forest fire
; frequency analysis
; regeneration
; seedling
; spatiotemporal analysis
; species diversity
; tropical region
; Forest Fires
; Forests
; Hardwoods
; Reforestation
; India
; Mudumalai Wildlife Sanctuary
; Tamil Nadu
; Western Ghats
; Tectona grandis
; Terminalia
英文摘要: This study was aimed to understand the effect of repeated fire on tropical dry deciduous forest in Mudumalai Tiger Reserve (MTR), Western Ghats. Tropical dry deciduous forests are prone to forest fire owing to high fuel load and long dry season. Fire frequency map of the study area was prepared for 15years from 1999 to 2013 using annual burn maps. Study area was stratified as B1 to B6 (one to six times burned) and compared to control (B0 - unburned during 1999-2013). Three plots were randomly laid in each stratum and seedlings; saplings and trees present in each plot were recorded. Species diversity indices showed increase in dominance and decrease in diversity with increasing fire frequency. Results showed that overall stem density (>1cm DBH) ranged from 576 (SD 112.69) (B1) to 236 (SD 20) individual ha-1 (B6). The basal area ranged from 36.8 (SD 2.19) m2ha-1 (B0) to 12.12 (SD 2.69) m2ha-1 (B5). Fire promoted seedling density from B0 to B2 and after that it started decreasing whereas sapling density was poor in all classes and recorded least in B6. Stem density of trees did not vary much up to B3 and started decreasing after that. Number of species decreased linearly with increasing fire frequency. In the analysis of dominant species, Tectona grandis showed a very significant mean difference in seedling, sapling and tree population whereas Terminalia cranulata did not show significant difference in mean densities of seedling, sapling or trees. It is found that fire with long interval can promote seedlings density but species diversity decreases with increasing fire frequency. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65535
Appears in Collections: 影响、适应和脆弱性
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作者单位: Environmental Informatics and Spatial Modeling lab, Department of Ecology and Environmental Sciences, School of Life Sciences, Pondicherry University, Puducherry, India
Recommended Citation:
Verma S.,Jayakumar S.. Post-fire regeneration dynamics of tree species in a tropical dry deciduous forest, Western Ghats, India[J]. Forest Ecology and Management,2015-01-01,341