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Priming alters soil carbon dynamics during forest succession
Qiao, Na1; Wang, Juan2; Xu, Xingliang; Shen, Youxin1; Long, Xi'en; Hu, Yuehua1; Schaefer, Douglas1; Li, Shenggong; Wang, Huimin; Kuzyakov, Yakov4,5,6
2019
Source PublicationBIOLOGY AND FERTILITY OF SOILS
ISSN0178-2762
Volume55Issue:4Pages:339-350
Abstract

The mechanisms underlying soil organic carbon (C) dynamics during forest succession remain challenged because amount, quality, and composition of C inputs change with tree growth and species composition. Soils were collected from two stages (grassland and young secondary forest) of secondary succession after the clear-cut of primary old-growth forest due to land-use change, with a native old-growth forest (undisturbed for more than 200 years) as the reference. Soil samples were incubated for 170 days and the priming effects were quantified by one pulse addition of C-13-labeled glucose. C-13-PLFAs (phospholipid fatty acids) were analyzed to identify microbial functional groups utilizing glucose and to explore their accordance with SOM priming during succession. Soil C was primed much more strongly in young secondary forest than in grassland or old-growth forest. Priming resulted in large C losses (negative net C balance) in young-forest soil, whereas C stocks increased in grassland and old-growth forest (positive net C balance). Microbial composition assessed by PLFA and utilization of easily available organics (C-13-PLFA) indicated that fungi were mainly responsible for priming in young-forest soil. Consequently, labile C released by litter decomposition and root exudation together with the availability of soil nutrients determines microbial functional groups that decompose soil organic matter during initial succession. These findings provide novel ecological connections between soil organic matter dynamics and C (de)stabilization with microbial functioning during forest succession and show that priming direction and intensity is important to distinguish soil C dynamics in young- and old-growth forests.

KeywordOld-growth Forests Organic-matter Microbial Communities Secondary Forest Decomposition Mechanisms Microorganisms Storage Biomass Mineralization
Subject AreaAgriculture
DOI10.1007/s00374-019-01351-0
Indexed BySCI
Language英语
WOS IDWOS:000463860700002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11274
Collection恢复生态学组
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla 666303, Yunnan, Peoples R China
3.Chinese Acad Sci, Inst Urban Environm, 1799 Jimei Rd, Xiamen 361021, Peoples R China
4.Nantong Univ, Sch Geog Sci, Nantong 226007, Peoples R China
5.Univ Gottingen, Dept Soil Sci Temperate Ecosyst, Dept Agr Soil Sci, Busgenweg 2, D-37077 Gottingen, Germany
6.Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia
7.RUDN Univ, Agrotechnol Inst, Moscow 117198, Russia
Recommended Citation
GB/T 7714
Qiao, Na,Wang, Juan,Xu, Xingliang,et al. Priming alters soil carbon dynamics during forest succession[J]. BIOLOGY AND FERTILITY OF SOILS,2019,55(4):339-350.
APA Qiao, Na.,Wang, Juan.,Xu, Xingliang.,Shen, Youxin.,Long, Xi'en.,...&Kuzyakov, Yakov.(2019).Priming alters soil carbon dynamics during forest succession.BIOLOGY AND FERTILITY OF SOILS,55(4),339-350.
MLA Qiao, Na,et al."Priming alters soil carbon dynamics during forest succession".BIOLOGY AND FERTILITY OF SOILS 55.4(2019):339-350.
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