globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0137209
论文题名:
Evapotranspiration Cycles in a High Latitude Agroecosystem: Potential Warming Role
作者: Watcharee Ruairuen; Gilberto J. Fochesatto; Elena B. Sparrow; William Schnabel; Mingchu Zhang; Yongwon Kim
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2015
发表日期: 2015-9-14
卷: 10, 期:9
语种: 英语
英文关键词: Seasons ; Ecosystems ; Surface energy ; Summer ; Alaska ; Forests ; Tundra ; Latitude
英文摘要: As the acreages of agricultural lands increase, changes in surface energetics and evapotranspiration (ET) rates may arise consequently affecting regional climate regimes. The objective of this study was to evaluate summertime ET dynamics and surface energy processes in a subarctic agricultural farm in Interior Alaska. The study includes micrometeorological and hydrological data. Results covering the period from June to September 2012 and 2013 indicated consistent energy fractions: LE/Rnet (67%), G/Rnet (6%), H/Rnet (27%) where LE is latent heat flux, Rnet is the surface net radiation, G is ground heat flux and H is the sensible heat flux. Additionally actual surface evapotranspiration from potential evaporation was found to be in the range of 59 to 66%. After comparing these rates with those of most prominent high latitude ecosystems it is argued here that if agroecosystem in high latitudes become an emerging feature in the land-use, the regional surface energy balance will significantly shift in comparison to existing Arctic natural ecosystems.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0137209&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/20419
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: School of Natural Resources and Extension, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America, 99775;Department of Atmospheric Sciences, Geophysical Institute and College of Natural Science and Mathematics, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America, 99775;School of Natural Resources and Extension, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America, 99775;International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America, 99775;Water and Environmental Research Center, Institute of Northern Engineering, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America, 99775;School of Natural Resources and Extension, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America, 99775;International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America, 99775

Recommended Citation:
Watcharee Ruairuen,Gilberto J. Fochesatto,Elena B. Sparrow,et al. Evapotranspiration Cycles in a High Latitude Agroecosystem: Potential Warming Role[J]. PLOS ONE,2015-01-01,10(9)
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