GSTDTAP  > 气候变化
DOI10.1002/2017GL075974
Disturbance Impacts on Thermal Hot Spots and Hot Moments at the Peatland-Atmosphere Interface
Leonard, R. M.1; Kettridge, N.1; Devito, K. J.2; Petrone, R. M.3; Mendoza, C. A.4; Waddington, J. M.5; Krause, S.1
2018-01-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2018
卷号45期号:1页码:185-193
文章类型Article
语种英语
国家England; Canada
英文摘要

Soil-surface temperature acts as a master variable driving nonlinear terrestrial ecohydrological, biogeochemical, and micrometeorological processes, inducing short-lived or spatially isolated extremes across heterogeneous landscape surfaces. However, subcanopy soil-surface temperatures have been, to date, characterized through isolated, spatially discrete measurements. Using spatially complex forested northern peatlands as an exemplar ecosystem, we explore the high-resolution spatiotemporal thermal behavior of this critical interface and its response to disturbances by using Fiber-Optic Distributed Temperature Sensing. Soil-surface thermal patterning was identified from 1.9 million temperature measurements under undisturbed, trees removed and vascular subcanopy removed conditions. Removing layers of the structurally diverse vegetation canopy not only increased mean temperatures but it shifted the spatial and temporal distribution, range, and longevity of thermal hot spots and hot moments. We argue that linking hot spots and/or hot moments with spatially variable ecosystem processes and feedbacks is key for predicting ecosystem function and resilience.


英文关键词soil temperature thermal hot spots hot moments ecosystem structure ecosystem functioning
领域气候变化
收录类别SCI-E
WOS记录号WOS:000423431800021
WOS关键词SOIL-TEMPERATURE ; CATASTROPHIC SHIFTS ; ECOSYSTEMS ; FEEDBACK ; ECOHYDROLOGY ; VARIABILITY ; EVAPORATION ; ALBERTA ; CANADA ; GROWTH
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/28310
专题气候变化
作者单位1.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham, W Midlands, England;
2.Univ Alberta, Dept Biol Sci, Edmonton, AB, Canada;
3.Univ Waterloo, Dept Geog & Environm Management, Waterloo, ON, Canada;
4.Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB, Canada;
5.McMaster Univ, Sch Geog & Earth Sci, Hamilton, ON, Canada
推荐引用方式
GB/T 7714
Leonard, R. M.,Kettridge, N.,Devito, K. J.,et al. Disturbance Impacts on Thermal Hot Spots and Hot Moments at the Peatland-Atmosphere Interface[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(1):185-193.
APA Leonard, R. M..,Kettridge, N..,Devito, K. J..,Petrone, R. M..,Mendoza, C. A..,...&Krause, S..(2018).Disturbance Impacts on Thermal Hot Spots and Hot Moments at the Peatland-Atmosphere Interface.GEOPHYSICAL RESEARCH LETTERS,45(1),185-193.
MLA Leonard, R. M.,et al."Disturbance Impacts on Thermal Hot Spots and Hot Moments at the Peatland-Atmosphere Interface".GEOPHYSICAL RESEARCH LETTERS 45.1(2018):185-193.
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