Soil organic carbon in deep profiles under Chinese continental monsoon climate and its relations with land uses
Wang, YQ; Shao, MA; Zhang, CC; Liu, ZP; Zou, JL; Xiao, JF
2015
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume82Pages:361-367
AbstractWe collected soil samples from depths between 0 and 12-21 m at 33 sites across the Chinese Loess Plateau in order to determine the vertical distributions and storage of soil organic carbon (SOC), as well as to test the hypothesis that SOC in deep soils (below 5 m) is greater under forest than under permanent cropland. The overall distributions of SOC within a profile were divided into three sub-layers: 0-2, 2-14, and 14-21 m, with significantly different (P < 0.01) mean SOC values of 3.28 +/- 2.39, 2.07 +/- 0.79, and 1.56 +/- 0.57 g kg(-1), respectively. In the deep soil layer (5-21 m), SOC storage was significantly higher (P < 0.01) under forest (47 +/- 0.43 kg m(-2)) than under cropland (38 +/- 0.44 kg m(-2)). Within the rooting zone, the factors affecting SOC variation were root length, pH and clay content; below the rooting zone, the factors were soil water content, pH and clay content. Land use and rooting characteristics significantly affected the magnitude and vertical distribution of SOC within both shallow and deep layers. Therefore, changes in land use can alter SOC storage in deep soils, which can have important consequences for global climate change. (C)2015 Elsevier B.V. All rights reserved.
SubtypeJournal
KeywordForest Cropland Plant root Carbon management Loess Plateau
Subject AreaEnvironmental Sciences & Ecology ; Engineering
WOS Subject ExtendedEcology ; Engineering, Environmental ; Environmental Sciences
WOS KeywordLOESS PLATEAU ; VERTICAL-DISTRIBUTION ; GREEN PROGRAM ; SEQUESTRATION ; STORAGE ; DYNAMICS ; NITROGEN ; ECOSYSTEMS ; SYSTEM ; REGION
Indexed BySCI
Language英语
WOS IDWOS:000360189100041
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44370
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Wang, YQ,Shao, MA,Zhang, CC,et al. Soil organic carbon in deep profiles under Chinese continental monsoon climate and its relations with land uses[J]. ECOLOGICAL ENGINEERING,2015,82:361-367.
APA Wang, YQ,Shao, MA,Zhang, CC,Liu, ZP,Zou, JL,&Xiao, JF.(2015).Soil organic carbon in deep profiles under Chinese continental monsoon climate and its relations with land uses.ECOLOGICAL ENGINEERING,82,361-367.
MLA Wang, YQ,et al."Soil organic carbon in deep profiles under Chinese continental monsoon climate and its relations with land uses".ECOLOGICAL ENGINEERING 82(2015):361-367.
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