DOI: 10.1016/j.foreco.2012.10.048
Scopus记录号: 2-s2.0-84871875753
论文题名: Effect of long-term understory prescribed burning on standing and down dead woody material in dry upland oak forests
作者: Polo J.A. ; Hallgren S.W. ; Leslie D.M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 291 起始页码: 128
结束页码: 135
语种: 英语
英文关键词: Coarse woody debris
; Fine woody debris
; Quercus marilandica
; Quercus stellata
; Snags
Scopus关键词: 20th century
; Carbon stocks
; Carbon storage
; Coarse woody debris
; Different sizes
; Down woody materials
; Fine woody debris
; Fire suppression
; Forest floors
; Forest gaps
; High incidence
; Ice storm
; Management tool
; Oak forests
; Prescribed burning
; Quercus
; Severe weather
; Snags
; Strong demand
; Strong winds
; Wildlife habitats
; Wildlife management
; Woody materials
; Woody plants
; Animals
; Fire hazards
; Fires
; Fuel storage
; Materials
; Plants (botany)
; Forestry
; burning
; dead wood
; forest cover
; forest fire
; forest management
; savanna
; understory
; upland region
; weather
; Animals
; Fires
; Forestry
; Fuels
; Hazards
; Materials
; Plants
; Quercus Marilandica
; Quercus Stellata
; Storage
; North America
; Quercus marilandica
; Quercus stellata
英文摘要: Dead woody material, long ignored or viewed as a nuisance for forest management, has gained appreciation for its many roles in the forest including wildlife habitat, nutrient storage and cycling, energy for trophic webs, protection of soil, fuel for fire and carbon storage. The growing interest in managing dead woody material has created strong demand for greater understanding of factors controlling amounts and turnover. Prescribed burning, an important management tool, may have strong effects of dead woody material given fire's capacity to create and consume dead woody material. We determined effects of long-term understory prescribed burning on standing and down woody material in upland oak forests in south-central North America. We hypothesized that as frequency of fire increased in these stands the amount of deadwood would decrease and the fine woody material would decrease more rapidly than coarse woody material. The study was conducted in forests dominated by post oak (Quercus stellata) and blackjack oak (Quercus marilandica) in wildlife management areas where understory prescribed burning had been practiced for over 20years and the range of burn frequencies was 0 (unburned) fires per decade (FPD) to 4.6 FPD. The amount of deadwood was low compared with more productive forests in southeastern North America. The biomass (24.7Mgha-1) and carbon stocks (11.7Mgha-1) were distributed among standing dead (22%), coarse woody debris (CWD, dia.>7.5cm., 12%), fine woody debris (FWD, dia.7.5cm., 23%), and forest floor (43%). There was no evidence that understory prescribed burning influenced the amount and size distribution of standing and down dead woody material. There were two explanations for the lack of a detectable effect. First, a high incidence of severe weather including ice storms and strong winds that produce large amounts of deadwood intermittently in an irregular pattern across the landscape may preclude detecting a strong effect of understory prescribed burning. Second, fire suppression during the first one-half of the 20th Century may have led to encroachment of woody plants into forest gaps and savannas creating a patchwork of young and old stands that produced deadwood of different sizes and at different rates. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66747
Appears in Collections: 影响、适应和脆弱性
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作者单位: Oklahoma State University, Department of Natural Resource Ecology and Management, 008C Ag Hall, Stillwater, OK 74078, United States; U.S. Geological Survey, Oklahoma Cooperative Fish and Wildlife Research Unit, Department of Natural Resource Ecology and Management, Oklahoma State University, Stillwater, OK 74078, United States
Recommended Citation:
Polo J.A.,Hallgren S.W.,Leslie D.M.. Effect of long-term understory prescribed burning on standing and down dead woody material in dry upland oak forests[J]. Forest Ecology and Management,2013-01-01,291