globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12624
论文题名:
Winter climate change affects growing-season soil microbial biomass and activity in northern hardwood forests
作者: Durán J.; Morse J.L.; Groffman P.M.; Campbell J.L.; Christenson L.M.; Driscoll C.T.; Fahey T.J.; Fisk M.C.; Mitchell M.J.; Templer P.H.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期:11
起始页码: 3568
结束页码: 3577
语种: 英语
英文关键词: Carbon ; Global change ; Microbial respiration ; Mineralization ; Nitrification ; Nitrogen ; Soil frost
Scopus关键词: nitrogen ; snow ; soil ; biomass ; chemistry ; climate ; climate change ; forest ; metabolism ; microbiology ; New Hampshire ; season ; soil ; Biomass ; Climate ; Climate Change ; Forests ; New Hampshire ; Nitrogen ; Seasons ; Snow ; Soil ; Soil Microbiology
英文摘要: Understanding the responses of terrestrial ecosystems to global change remains a major challenge of ecological research. We exploited a natural elevation gradient in a northern hardwood forest to determine how reductions in snow accumulation, expected with climate change, directly affect dynamics of soil winter frost, and indirectly soil microbial biomass and activity during the growing season. Soils from lower elevation plots, which accumulated less snow and experienced more soil temperature variability during the winter (and likely more freeze/thaw events), had less extractable inorganic nitrogen (N), lower rates of microbial N production via potential net N mineralization and nitrification, and higher potential microbial respiration during the growing season. Potential nitrate production rates during the growing season were particularly sensitive to changes in winter snow pack accumulation and winter soil temperature variability, especially in spring. Effects of elevation and winter conditions on N transformation rates differed from those on potential microbial respiration, suggesting that N-related processes might respond differently to winter climate change in northern hardwood forests than C-related processes. © 2014 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62140
Appears in Collections:影响、适应和脆弱性

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作者单位: Cary Institute of Ecosystem Studies, Box AB, 2801 Sharon Turnpike, Millbrook, NY, United States; Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal; Environmental Science and Management, School of the Environment, Portland State University, PO Box 751 (ESM), Portland, OR, United States; Northern Research Station, USDA Forest Service, 271 Mast Road, Durham, NH, United States; Biology Department, Vassar College, 124 Raymond Ave., Poughkeepsie, NY, United States; Department of Civil and Environmental Engineering, Syracuse University, 900 S Crouse Ave., Syracuse, NY, United States; Department of Natural Resources, Cornell University, Ithaca, NY, United States; Department of Zoology, Miami University, 501 E High St., Oxford, OH, United States; Department of Environmental and Forest Biology, SUNY-College of Environmental Science and Forestry, 1 Forestry Dr, Syracuse, NY, United States; Department of Biology, Boston University, 5 Cummington Street, Boston, MA, United States

Recommended Citation:
Durán J.,Morse J.L.,Groffman P.M.,et al. Winter climate change affects growing-season soil microbial biomass and activity in northern hardwood forests[J]. Global Change Biology,2014-01-01,20(11)
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