干旱区生态环境知识资源中心(Arid): Responses of plant productivity and soil nutrient concentrations to different alpine grassland degradation levels

Arid

DOI	10.1007/s10661-019-7877-2
	Responses of plant productivity and soil nutrient concentrations to different alpine grassland degradation levels
	Xu, Hai Peng; Zhang, Jing; Pang, Xiao Pan; Wang, Qian; Zhang, Wen Na; Wang, Juan; Guo, Zheng Gang
通讯作者	Guo, Zheng Gang
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2019
卷号	191 期号:11
英文摘要	Although grassland degradation simultaneously affects plant productivity and soil nutrient concentrations, the relationship between plant productivity and soil nutrient concentrations during the process of grassland degradation is not yet well documented. A 4-year survey in the Qinghai-Tibetan Plateau was conducted to simultaneously investigate the relationships between plant productivity and soil nutrient concentrations in an alpine grassland at an overall degradation level and individual degradation levels. Our results showed that the total plant, sedge, and forb biomasses decreased, whereas the grass and legume biomasses first increased and then decreased as the level of alpine grassland degradation increased. Soil organic carbon (C), total nitrogen (N), total phosphorus (P), available N, and available P concentrations also decreased with the increase in degradation level. Our results also showed that plant productivity was positively correlated with soil nutrient concentrations (soil organic C, total T, total P, available N, available P) at an overall degradation level, whereas plant productivity was positively correlated with only the soil organic C concentration at each degradation level. Our findings suggested that the alpine grassland degradation conditions had different effects on the plant productivity of four functional groups (sedges, grasses, legumes, forbs) and affected the relationship between plant productivity and soil nutrient concentrations.
英文关键词	Total plant biomass Functional group biomass Soil nutrient concentrations Degradation level Alpine grassland
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000493104900005
WOS关键词	QINGHAI-TIBETAN PLATEAU ; ORGANIC-CARBON ; LAND DEGRADATION ; NITROGEN POOLS ; VEGETATION ; COMMUNITY ; MEADOW ; DESERTIFICATION ; BIOMASS ; GRADIENT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-11-01
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310536
作者单位	Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, State Key Lab Grassland Agroecosyst, Minist Agr & Rural Affairs,Coll Pastoral Agr Sci, Lanzhou 730020, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hai Peng,Zhang, Jing,Pang, Xiao Pan,et al. Responses of plant productivity and soil nutrient concentrations to different alpine grassland degradation levels[J]. 兰州大学,2019,191(11).
APA	Xu, Hai Peng.,Zhang, Jing.,Pang, Xiao Pan.,Wang, Qian.,Zhang, Wen Na.,...&Guo, Zheng Gang.(2019).Responses of plant productivity and soil nutrient concentrations to different alpine grassland degradation levels.ENVIRONMENTAL MONITORING AND ASSESSMENT,191(11).
MLA	Xu, Hai Peng,et al."Responses of plant productivity and soil nutrient concentrations to different alpine grassland degradation levels".ENVIRONMENTAL MONITORING AND ASSESSMENT 191.11(2019).