干旱区生态环境知识资源中心(Arid): The Response of Vegetation Biomass to Soil Properties along Degradation Gradients of Alpine Meadow at Zoige Plateau

Arid

DOI	10.1007/s11769-020-1116-1
	The Response of Vegetation Biomass to Soil Properties along Degradation Gradients of Alpine Meadow at Zoige Plateau
	Liu, Miao 1; Zhang, Zhenchao 1; Sun, Jian 1,2; Xu, Ming 1,3,4; Ma, Baibing 1,5; Tijjani, Sadiy Baba 3; Chen, You-jun 6; Zhou, Qingping 6
通讯作者	Sun, Jian ; Xu, Ming
来源期刊	CHINESE GEOGRAPHICAL SCIENCE
ISSN	1002-0063
EISSN	1993-064X
出版年	2020
卷号	30 期号:3 页码:446-455
英文摘要	Alpine grassland of the Tibetan Plateau has undergone severe degradation, even desertification. However, several questions remain to be answered, especially the response mechanisms of vegetation biomass to soil properties. In this study, an experiment on degradation gradients was conducted in an alpine meadow at the Zoige Plateau in 2017. Both vegetation characteristics and soil properties were observed during the peak season of plant growth. The classification and regression tree model (CART) and structural equation modelling (SEM) were applied to screen the main factors that govern the vegetation dynamics and explore the interaction of these screened factors. Both aboveground biomass (AGB) and belowground biomass (BGB) experienced a remarkable decrease along the degradation gradients. All soil properties experienced significant variations along the degradation gradients at the 0.05 significance level. Soil physical and chemical properties explained 54.78% of the variation in vegetation biomass along the degradation gradients. AGB was mainly influenced by soil water content (SWC), soil bulk density (SBD), soil organic carbon (SOC), soil total nitrogen (STN), and pH. Soil available nitrogen (SAN), SOC and pH, had significant influence on BGB. Most soil properties had positive effects on AGB and BGB, while SBD and pH had a slightly negative effect on AGB and BGB. The correlations of SWC with AGB and BGB were relatively less significant than those of other soil properties. Our results highlighted that the soil properties played important roles in regulating vegetation dynamics along the degradation gradients and that SWC is not the main factor limiting plant growth in the humid Zoige region. Our results can provide guidance for the restoration and improvement of degraded alpine grasslands on the Tibetan Plateau.
英文关键词	vegetation biomass soil properties degradation gradients structural equation modelling Zoige Plateau
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000521904600002
WOS关键词	BELOW-GROUND BIOMASS ; ENVIRONMENTAL-FACTORS ; HYDRAULIC-PROPERTIES ; CNP STOICHIOMETRY ; TIBETAN PLATEAU ; DESERTIFICATION ; GRASSLANDS ; NITROGEN ; CARBON ; CLIMATE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314257
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Synth Res Ctr,Chinese Ecosyst Res Network, Beijing 100101, Peoples R China; 2.Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China; 3.Rutgers State Univ, Sch Environm & Biol Sci, Dept Ecol Evolut & Nat Resources, New Brunswick, NJ 08901 USA; 4.Henan Univ, Coll Environm & Planning, Kaifeng 475004, Peoples R China; 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 6.Southwest Minzu Univ, Inst Qinghai Tibetan Plateau, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Liu, Miao,Zhang, Zhenchao,Sun, Jian,et al. The Response of Vegetation Biomass to Soil Properties along Degradation Gradients of Alpine Meadow at Zoige Plateau[J]. 中国科学院地理科学与资源研究所,2020,30(3):446-455.
APA	Liu, Miao.,Zhang, Zhenchao.,Sun, Jian.,Xu, Ming.,Ma, Baibing.,...&Zhou, Qingping.(2020).The Response of Vegetation Biomass to Soil Properties along Degradation Gradients of Alpine Meadow at Zoige Plateau.CHINESE GEOGRAPHICAL SCIENCE,30(3),446-455.
MLA	Liu, Miao,et al."The Response of Vegetation Biomass to Soil Properties along Degradation Gradients of Alpine Meadow at Zoige Plateau".CHINESE GEOGRAPHICAL SCIENCE 30.3(2020):446-455.