DOI: 10.1016/j.foreco.2015.04.006
Scopus记录号: 2-s2.0-84929942967
论文题名: Historical agriculture and contemporary fire frequency alter soil properties in longleaf pine woodlands
作者: Bizzari L.E. ; Collins C.D. ; Brudvig L.A. ; Damschen E.I.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 349 起始页码: 45
结束页码: 54
语种: 英语
英文关键词: Disturbance
; Fire suppression
; Land-use legacy
; Pinus palustris
; Reforestation
Scopus关键词: Biogeochemistry
; Biological materials
; Fires
; Forestry
; Land use
; Minerals
; Organic compounds
; Phosphorus
; Reforestation
; Soil moisture
; Soil testing
; Soils
; Agricultural abandonments
; Disturbance
; Fire suppression
; Inorganic nitrogen
; Organic matter content
; Pinus palustris
; Soil water holdings
; Understory vegetation
; Agriculture
; agricultural history
; agricultural land
; bulk density
; coniferous tree
; disturbance
; fire behavior
; mineral
; native species
; phosphorus
; reforestation
; soil horizon
; soil nitrogen
; soil organic matter
; soil profile
; soil property
; soil survey
; soil water
; understory
; woodland
; United States
; Pinus palustris
英文摘要: Historical agriculture and contemporary disturbances such as fire can each affect soil properties, but the relative impact of their separate and combined effects is poorly understood. We investigated the effects of historical agriculture and contemporary fire frequency on soil properties of longleaf pine woodlands in the Southeastern United States. We sampled 24 pairs of sites from adjacent former agricultural and remnant longleaf pine woodlands based on high (≥. four since 1971) and low (<. four since 1971) fire frequency. We found no evidence for interactive effects between agricultural history and fire frequency on measured mineral soil properties, yet each disturbance independently affected different aspects of the soil. Effects of past agricultural use were most apparent in the top 15. cm of the mineral soil, with post-agricultural woodlands characterized by increased phosphorus and bulk density, as well as decreased organic matter and soil water holding capacity, compared to remnant woodlands. Some effects of past agricultural use, such as increased phosphorus, were also apparent as deep as 30. cm into the soil profile. However, when expressed as stocks (to account for differences in bulk density) we found that organic matter content was similar among post-agricultural and remnant woodlands. With respect to contemporary fire frequency, less frequently burned sites had thicker O-horizons (litter and duff layers) and showed a trend of greater inorganic nitrogen in mineral soil, relative to frequently burned sites. Overall, our results indicate that agricultural legacies in soils persist 60. years after agricultural abandonment and have impacts that may extend deep into the soil profile. Fire suppression additionally affects soils, resulting in additive effects of historical and contemporary disturbances. Additional research is needed to better determine if and how the combined effects of past and present disturbances will affect ecological systems. These combined and long-lasting impacts of historical and contemporary disturbances may help explain why restoration of native understory vegetation remains challenging. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65415
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Biology, Colby College, Waterville, ME, United States; Department of Plant Biology, Michigan State University, East Lansing, MI, United States; Department of Zoology, University of Wisconsin, Madison, WI, United States
Recommended Citation:
Bizzari L.E.,Collins C.D.,Brudvig L.A.,et al. Historical agriculture and contemporary fire frequency alter soil properties in longleaf pine woodlands[J]. Forest Ecology and Management,2015-01-01,349