干旱区生态环境知识资源中心(Arid): Warming neither accelerates degradation of alpine grasslands nor promotes restoration of degraded alpine grasslands on the Tibetan Plateau

Arid

DOI	10.1016/j.catena.2024.108102
	Warming neither accelerates degradation of alpine grasslands nor promotes restoration of degraded alpine grasslands on the Tibetan Plateau
	Zhou, Yang; Cui, Shujuan; Lv, Wangwang; Sun, Jianping; Lv, Jingya; Li, Bowen; Chen, Lanying; Dorji, Tsechoe; Wang, Shiping
通讯作者	Wang, SP
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2024
卷号	242
英文摘要	It is still debated whether warming induces degradation of alpine grasslands and whether warming accelerates the restoration of degraded alpine grasslands. Here we conducted a warming experiment using open top chambers to explore warming effects on plant composition and diversity, aboveground net primary productivity (ANPP) and net ecosystem carbon exchange (NEE) in alpine grassland at three degradation levels (i.e., no- degradation, moderate degradation and desertification) on the Tibetan Plateau from 2014 to 2016. There were no interactive effects between warming and degradation level on the variables measured in our study, except for plant diversity. Warming enhanced plant species diversity at no-degradation sites but had no significant influence on species diversity at sites of moderate degradation and desertification. Generally, warming alone had no significant effects on ANPP or seasonal average NEE during the experimental period, but its effect on them varied with year. In addition, compared with non-degraded sites, heavy degradation decreased ANPP by 35.8%, 44.2% and 63.8%, and reduced NEE by 71.8%, 63.4% and 70.3% in 2014, 2015 and 2016, respectively. The effects of moderate degradation on ANPP and NEE varied with year, enhancing ANPP by 37.3% and 37.7% in 2015 and 2016, but moderate degradation had no remarkable influence on seasonal average NEE compared with non-degraded sites. These results suggest that warming neither accelerates degradation of alpine grasslands nor promotes restoration of degraded alpine grasslands on the Tibetan Plateau.
英文关键词	Warming Plant composition and diversity Aboveground net primary productivity Net ecosystem CO 2 exchange Alpine grassland
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001291624000001
WOS关键词	ECOSYSTEM CARBON EXCHANGE ; QINGHAI-TIBET ; PASTURE DEGRADATION ; PLANT DIVERSITY ; CLIMATE-CHANGE ; 3 RIVERS ; SOIL ; RESPONSES ; PRODUCTIVITY ; COMMUNITY
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403159
推荐引用方式 GB/T 7714	Zhou, Yang,Cui, Shujuan,Lv, Wangwang,et al. Warming neither accelerates degradation of alpine grasslands nor promotes restoration of degraded alpine grasslands on the Tibetan Plateau[J],2024,242.
APA	Zhou, Yang.,Cui, Shujuan.,Lv, Wangwang.,Sun, Jianping.,Lv, Jingya.,...&Wang, Shiping.(2024).Warming neither accelerates degradation of alpine grasslands nor promotes restoration of degraded alpine grasslands on the Tibetan Plateau.CATENA,242.
MLA	Zhou, Yang,et al."Warming neither accelerates degradation of alpine grasslands nor promotes restoration of degraded alpine grasslands on the Tibetan Plateau".CATENA 242(2024).