干旱区生态环境知识资源中心(Arid): Soil organic carbon components in inner Mongolian shrub-encroached grasslands

Arid

DOI	10.1007/s11104-019-04166-y
	Soil organic carbon components in inner Mongolian shrub-encroached grasslands
	Zhou, Luhong 1,2,3,4; Shen, Haihua 3,4; Xu, Yunping 5; Li, He 3; Chen, Leiyi 3; Wang, Yinghui 1,2; Zhang, Pujin 3,6; Zhao, Xia 3; Liu, Taoyu 3; Hu, Huifeng 3; Fang, Jingyun 1,2,3
通讯作者	Shen, Haihua ; Fang, Jingyun
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2019
卷号	442 期号:1-2 页码:199-213
英文摘要	Aims Shrub encroachment has profound influences on regional carbon cycling. However, few studies have examined the changes in soil organic carbon (SOC) components at the molecular level along a climate gradient. In this study, we aimed to investigate the effects of biotic and abiotic factors on the patterns of SOC components in the shrub patches and the grassy matrix. Methods We analyzed the distribution and controlling factors of SOC components (including free lipids, bound lipids, and lignin-derived phenols) in the topsoil of shrub-encroached grasslands along natural climate gradients in Inner Mongolia, China. Results We found that the concentrations of bound lipids and lignin-derived phenols were significantly higher and the vanillic acid to vanillin ratio ((Ad/Al)(v)) was significantly lower in the shrub patches than in the grassy matrix (p < 0.05). After excluding variables exhibiting collinearity, redundancy analysis showed that shrub patch cover and soil pH were the most important variables that influenced SOC composition in the shrub patches, while herb characteristics and shrub density were the most important in the grassy matrix. Structural equation modeling showed that shrub characteristics at the plot scale greatly contributed to the variance in all components in the grassy matrix, whereas soil properties were more important in the shrub patches. Conclusions Our results highlight that although the topsoil carbon content did not change, shrub encroachment altered the SOC components and their drivers in the Inner Mongolian grasslands.
英文关键词	Biomarkers Climate change Plant-soil interaction Structural equation modeling Vegetation transition
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000485324700013
WOS关键词	MICROBIAL COMMUNITIES ; LAND-USE ; PLANT ; MATTER ; LIPIDS ; DESERTIFICATION ; PRODUCTIVITY ; DIVERSITY ; CHEMISTRY ; DYNAMICS
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
来源机构	北京大学 ; 中国科学院植物研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218004
作者单位	1.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China; 2.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China; 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China; 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 5.Shanghai Ocean Univ, Coll Marine Sci, Shanghai Engn Res Ctr Hadal Sci & Technol, Shanghai 201306, Peoples R China; 6.Chinese Acad Sci, Inner Mongolia Prataculture Res Ctr, Hohhot 010031, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Luhong,Shen, Haihua,Xu, Yunping,et al. Soil organic carbon components in inner Mongolian shrub-encroached grasslands[J]. 北京大学, 中国科学院植物研究所,2019,442(1-2):199-213.
APA	Zhou, Luhong.,Shen, Haihua.,Xu, Yunping.,Li, He.,Chen, Leiyi.,...&Fang, Jingyun.(2019).Soil organic carbon components in inner Mongolian shrub-encroached grasslands.PLANT AND SOIL,442(1-2),199-213.
MLA	Zhou, Luhong,et al."Soil organic carbon components in inner Mongolian shrub-encroached grasslands".PLANT AND SOIL 442.1-2(2019):199-213.