干旱区生态环境知识资源中心(Arid): The effects of vegetation communities on soil organic carbon stock in an enclosed desert-steppe region of northern China

Arid

DOI	10.1080/00380768.2022.2045847
	The effects of vegetation communities on soil organic carbon stock in an enclosed desert-steppe region of northern China
	Wei Yajuan; Liu Meiying; Wang Ji; Dang Xiaohong; Han Yanlong
通讯作者	Liu, MY (corresponding author)，Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot, Peoples R China.
来源期刊	SOIL SCIENCE AND PLANT NUTRITION
ISSN	0038-0768
EISSN	1747-0765
出版年	2022-03
英文摘要	Enclosure is an effective strategy for enhancing soil carbon sequestration in the desert steppe. Soil organic carbon (SOC) and its stock during changes in the plant community influence soil fertility and the global carbon cycle. We studied changes in SOC and its stock along with six plant community types in the desert steppe of Inner Mongolia, northern China. The goal of this study was to explore differences in SOC and its stock among plant communities while accounting for the effects of environmental factors. We collected 336 soil samples at four soil depths (0-5 cm, 5-10 cm, 10-20 cm, and 20-30 cm) and vegetation attributes from 84 plots in the enclosure. The results revealed that plant community type and soil depth were the most influential factors for root biomass, SOC, and SOC stock. Total root biomass varied from 229.21 to 731.71 g center dot m(-2) and was ranked as follows: Koeleria cristata > Leymus chinensis > Stipa krylovii >Allium mongolicum >Stipa breviflora > Convolvulus ammannii. Mean SOC and its stock of soils associated with K. cristata were 1.94 and 1.62 times higher than that measured for C. ammannii soils, respectively. Root biomass, SOC, and its stock gradually decreased with soil depth. Stratification ratios (SRs) of SOC increased with soil depth for different plant communities and showed better soil quality (except C. ammannii and A. mongolicum). Results from redundancy analysis (RDA) showed that root biomass, clay, coverage, and litter biomass had significant impacts on SOC and SOC stock. We conclude that the plant community had the greatest effect on improving SOC stock after enclosure, and plant root biomass contributed the most to SOC stock.
英文关键词	SOC stock root biomass plant community stratification ratio desert steppe Xilamuren grassland
类型	Review ; Early Access
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000763186000001
WOS关键词	STRATIFICATION RATIO ; GRAZING INTENSITY ; INNER-MONGOLIA ; SEMIARID GRASSLAND ; LOESS PLATEAU ; NITROGEN ; SEQUESTRATION ; ECOSYSTEM ; MANAGEMENT ; EXCLUSION
WOS类目	Plant Sciences ; Environmental Sciences ; Soil Science
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377377
作者单位	[Wei Yajuan; Wang Ji; Dang Xiaohong; Han Yanlong] Inner Mongolia Agr Univ, Coll Desert Control Sci & Engn, Hohhot, Peoples R China; [Liu Meiying] Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot, Peoples R China; [Liu Meiying] Inner Mongolia Key Lab Soil Qual & Nutr Reso, Hohhot, Peoples R China; [Wang Ji] Inner Mongolia Agr Univ, Hohhot, Peoples R China
推荐引用方式 GB/T 7714	Wei Yajuan,Liu Meiying,Wang Ji,et al. The effects of vegetation communities on soil organic carbon stock in an enclosed desert-steppe region of northern China[J],2022.
APA	Wei Yajuan,Liu Meiying,Wang Ji,Dang Xiaohong,&Han Yanlong.(2022).The effects of vegetation communities on soil organic carbon stock in an enclosed desert-steppe region of northern China.SOIL SCIENCE AND PLANT NUTRITION.
MLA	Wei Yajuan,et al."The effects of vegetation communities on soil organic carbon stock in an enclosed desert-steppe region of northern China".SOIL SCIENCE AND PLANT NUTRITION (2022).