globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13669
论文题名:
Long-term effects of climate change on carbon storage and tree species composition in a dry deciduous forest
作者: Fekete I.; Lajtha K.; Kotroczó Z.; Várbíró G.; Varga C.; Tóth J.A.; Demeter I.; Veperdi G.; Berki I.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:8
起始页码: 3154
结束页码: 3168
语种: 英语
英文关键词: coarse woody debris ; dry conditions in forest ; forest stand composition and diversity change ; net primary production ; oak decline ; soil carbon storage ; Síkfőkút Forest
Scopus关键词: carbon sequestration ; carbon sink ; climate change ; climate effect ; community composition ; deciduous forest ; net primary production ; soil carbon ; tree ; woody debris ; Hungary ; Quercus ; Quercus petraea
英文摘要: Forest vegetation and soils have been suggested as potentially important sinks for carbon (C) with appropriate management and thus are implicated as effective tools in stabilizing climate even with increasing anthropogenic release of CO2. Drought, however, which is often predicted to increase in models of future climate change, may limit net primary productio (NPP) of dry forest types, with unknown effects on soil C storage. We studied C dynamics of a deciduous temperate forest of Hungary that has been subject to significant decreases in precipitation and increases in temperature in recent decades. We resampled plots that were established in 1972 and repeated the full C inventory by analyzing more than 4 decades of data on the number of living trees, biomass of trees and shrubs, and soil C content. Our analyses show that the decline in number and biomass of oaks started around the end of the 1970s with a 71% reduction in the number of sessile oak stems by 2014. Projected growth in this forest, based on the yield table's data for Hungary, was 4.6 kg C/m2. Although new species emerged, this new growth and small increases in oak biomass resulted in only 1.9 kg C/m2 increase over 41 years. The death of oaks increased inputs of coarse woody debris to the surface of the soil, much of which is still identifiable, and caused an increase of 15.5%, or 2.6 kg C/m2, in the top 1 m of soil. Stability of this fresh organic matter input to surface soil is unknown, but is likely to be low based on the results of a colocated woody litter decomposition study. The effects of a warmer and drier climate on the C balance of forests in this region will be felt for decades to come as woody litter inputs decay, and forest growth remains impeded. © 2017 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/60880
Appears in Collections:影响、适应和脆弱性

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作者单位: Institute of Environmental Sciences, University of Nyíregyháza, Nyíregyháza, Hungary; Department of Crop and Soil Science, Oregon State University, Corvallis, OR, United States; Department of Soil Science and Water Management, Szent István University, Budapest, Hungary; Department of Tisza River Research, Danube Research Institute, Centre for Ecology of HAS, Debrecen, Hungary; Department of Land Management and Rural Development, University of Nyíregyháza, Nyíregyháza, Hungary; Department of Ecology, University of Debrecen, Debrecen, Hungary; Centre for Agricultural Sciences, Research Institute of Nyíregyháza, University of Debrecen, Nyíregyháza, Hungary; Institute of Forest Assets Management, University of West Hungary, Sopron, Hungary; Institute of Environmental and Earth Sciences, University of West Hungary, Sopron, Hungary

Recommended Citation:
Fekete I.,Lajtha K.,Kotroczó Z.,et al. Long-term effects of climate change on carbon storage and tree species composition in a dry deciduous forest[J]. Global Change Biology,2017-01-01,23(8)
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