DOI: 10.1016/j.foreco.2016.08.004
Scopus记录号: 2-s2.0-84989891655
论文题名: Hydrologic position mediates sensitivity of tree growth to climate: Groundwater subsidies provide a thermal buffer effect in wetlands
作者: Raney P.A. ; Leopold D.J. ; Dovciak M. ; Beier C.M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 379 起始页码: 70
结束页码: 80
语种: 英语
英文关键词: Balsam fir
; Boreal
; Climate change
; Eastern white pine
; Fen
; Refugia
; Soil
; Temperature
; Tree-ring
Scopus关键词: Forestry
; Groundwater
; Landforms
; Population statistics
; Soils
; Temperature
; Wetlands
; Balsam fir
; Boreal
; Eastern white pines
; Refugia
; Tree rings
; Climate change
; Abies balsamea
; Coniferophyta
; Pinus strobus
英文摘要: We evaluated the effects of hydrologic setting on the growth sensitivity of two conifer species to recent atmospheric climatic variability and change in a region experiencing a warming (annual Tmin: 0.07 °C/decade) and wetting trend (total annual PPT 9.8 mm/decade; 1911–2012). Tree-ring chronologies were constructed for the boreal disjunct balsam fir (Abies balsamea; n = 72; 1916–2012) and range-centered eastern white pine (Pinus strobus; n = 84; 1707–2012) at three forested, groundwater-fed wetlands (fens) and their neighboring uplands in New York State, USA. Soil temperature monitoring in 2010 confirmed that upland soils were significantly warmer than fen soils during the spring and summer months (11.5–13.9 °C; p < 0.05). Climate-growth relationships for Abies balsamea varied substantially based on hydrologic setting and season. Compared with a remnant upland population that showed an increasingly negative sensitivity to warm summer temperatures over time A. balsamea positioned in fens were less sensitive to recent warming. While atmospheric climate-growth relationships were more consistent across hydrologic settings for Pinus strobus, we still observed qualitatively different responses to atmospheric climate variables between fen and upland populations. Overall, the climate-growth relationships identified in this study suggest that relative to trees growing in mesic upland soils, growth sensitivity to warm ambient climate in summer is ameliorated by groundwater inputs. The climate modulating effects of groundwater on tree-growth observed in our study suggests that for temperate and boreal regions where fens are abundant further consideration of groundwater influences on climate-growth relationships is warranted. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64723
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Environmental and Forest Biology, State University of New York, College of Environmental Science and Forestry, One Forestry Drive, Syracuse, NY, United States; Upper Susquehanna Coalition, 183 Corporate Drive, Owego, NY, United States; Department of Forest and Natural Resources Management, State University of New York, College of Environmental Science and Forestry, One Forestry Drive, Syracuse, NY, United States
Recommended Citation:
Raney P.A.,Leopold D.J.,Dovciak M.,et al. Hydrologic position mediates sensitivity of tree growth to climate: Groundwater subsidies provide a thermal buffer effect in wetlands[J]. Forest Ecology and Management,2016-01-01,379