干旱区生态环境知识资源中心(Arid): Plant restoration leads to divergent sequestration of soil carbon and nitrogen in different fractions in an arid desert region

Arid

DOI	10.1002/ldr.3416
	Plant restoration leads to divergent sequestration of soil carbon and nitrogen in different fractions in an arid desert region
	Jia, Xiao-hong 1,2; Li, Yuan-shou 3; Wu, Bo 1; Lu, Qi1 ; Li, Xin-rong2
通讯作者	Li, Yuan-shou
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2019
卷号	30 期号:18 页码:2197-2210
英文摘要	Soil organic carbon (OC) and nitrogen (N) associated with particle size fractions can be used as sensitive indicators to evaluate impacts of land use change on soil total OC (TOC) and total N (TN) pools. Aeolian sandy-soils were collected from seven sites in the Tengger Desert, representing a 56-year chronosequence of plant restoration at decadal intervals in an arid desert region. Bulk soils were separated into silt + clay (<53 mu m), fine sand (53-100 mu m), and coarse sand (>100 mu m) fractions. TOC and TN concentrations of bulk soil and their levels associated with particle size fractions were analyzed. Results showed that plant restoration promoted C and N sequestration in both topsoil and subsoil layers over time, as indicated by elevated levels of OC and N associated with silt + clay and sand fractions. TOC and TN concentrations of 56-year restored topsoil respectively increased by 31- and 43-fold than did the control (moving dunes); corresponding levels associated with silt + clay or coarse sand fraction respectively increased by more than 30- and 20-fold, whereas less than 15-fold increases were found in fine sand fraction. In the early stages of plant restoration, both C and N sequestration primarily resulted from finer particle size fractions. In the later stages, increased C sequestration was principally derived from coarse sand fraction, whereas N sequestration was mainly derived from silt + clay fraction. The results highlight that plant restoration stage and soil textural change are key factors leading to divergent soil C and N sequestration in the arid desert region.
英文关键词	arid desert plant restoration sand fraction silt and clay fraction soil nitrogen soil organic carbon
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000481591200001
WOS关键词	PARTICLE-SIZE FRACTIONS ; ORGANIC-CARBON ; LAND-USE ; TENGGER DESERT ; MICROBIAL BIOMASS ; ENZYME-ACTIVITIES ; NATURAL C-13 ; MATTER ; GRASSLAND ; DYNAMICS
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217483
作者单位	1.Chinese Acad Forestry, Inst Desert Studies, Beijing 100091, Peoples R China; 2.Chinese Acad Sci, Shapotou Desert Res & Expt State Key Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China; 3.China Meteorol Adm, Chinese Acad Meteorol Sci, 46 Zhongguancun South St, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Jia, Xiao-hong,Li, Yuan-shou,Wu, Bo,et al. Plant restoration leads to divergent sequestration of soil carbon and nitrogen in different fractions in an arid desert region[J]. 中国科学院西北生态环境资源研究院,2019,30(18):2197-2210.
APA	Jia, Xiao-hong,Li, Yuan-shou,Wu, Bo,Lu, Qi,&Li, Xin-rong.(2019).Plant restoration leads to divergent sequestration of soil carbon and nitrogen in different fractions in an arid desert region.LAND DEGRADATION & DEVELOPMENT,30(18),2197-2210.
MLA	Jia, Xiao-hong,et al."Plant restoration leads to divergent sequestration of soil carbon and nitrogen in different fractions in an arid desert region".LAND DEGRADATION & DEVELOPMENT 30.18(2019):2197-2210.