干旱区生态环境知识资源中心(Arid): Extreme precipitation increases the productivity of a desert ephemeral plant community in Central Asia, but there is no slope position effect

Arid

DOI	10.1111/jvs.13077
	Extreme precipitation increases the productivity of a desert ephemeral plant community in Central Asia, but there is no slope position effect
	Zang, Yong-Xin; Ma, Jian-Ying; Zhou, Xiao-Bing; Tao, Ye; Yin, Ben-Feng; Zhang, Yuan-Ming
通讯作者	Zhang, YM (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China. ; Ma, JY (corresponding author), Northeast Normal Univ, Sch Geog Sci, Key Lab Geog Proc & Ecol Secur Changbai Mt, Minist Educ, Changchun 130024, Peoples R China.
来源期刊	JOURNAL OF VEGETATION SCIENCE
ISSN	1100-9233
EISSN	1654-1103
出版年	2021
卷号	32 期号:5
英文摘要	Questions Anthropogenic climate change has become a critical environmental problem and is profoundly affecting various ecosystems, especially desert ecosystems. However, very few studies have explored the effects of extreme precipitation on the community structure and ecosystem functions in drylands. Moreover, whether local microtopography will interact with extreme precipitation on plant growth by changing water retention and other processes is still unclear. Location The Gurbantunggut Desert in Central Asia. Methods We conducted a two-year field experiment to assess the effect of extreme precipitation (+65% of ambient growing-season precipitation amounts) on the composition and productivity of a desert ephemeral plant community growing in sand dunes of the Gurbantunggut Desert in Central Asia. We further determined how much slope position modulates this response. Results We found that the cover, density, height, species richness, and biomass of ephemeral plants increased with an increase in precipitation, and the strongest direct effect of biomass was a positive effect on density of ephemeral plants. Additionally, no significant differences in the sensitivity of biomass to the increased precipitation were found between slope positions. Conclusions The results indicate that extreme precipitation primarily increased the above-ground net primary production by increasing the density, rather than the height and species richness, of the ephemeral community; no interactive effects were observed between sand dune slope positions and the sensitivity of biomass to the extreme precipitation treatment.
英文关键词	above-ground net primary production community structure ephemeral plant extreme precipitation sensitivity slope position Gurbantunggut Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000716232600006
WOS关键词	WATER-USE ; GRASSLAND RESPONSES ; PATTERNS ; NITROGEN ; BIODIVERSITY ; VARIABILITY ; ECOSYSTEMS ; DIVERSITY ; DROUGHT ; CLIMATE
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373620
作者单位	[Zang, Yong-Xin; Zhou, Xiao-Bing; Tao, Ye; Yin, Ben-Feng; Zhang, Yuan-Ming] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Ma, Jian-Ying] Northeast Normal Univ, Sch Geog Sci, Key Lab Geog Proc & Ecol Secur Changbai Mt, Minist Educ, Changchun 130024, Peoples R China
推荐引用方式 GB/T 7714	Zang, Yong-Xin,Ma, Jian-Ying,Zhou, Xiao-Bing,et al. Extreme precipitation increases the productivity of a desert ephemeral plant community in Central Asia, but there is no slope position effect[J],2021,32(5).
APA	Zang, Yong-Xin,Ma, Jian-Ying,Zhou, Xiao-Bing,Tao, Ye,Yin, Ben-Feng,&Zhang, Yuan-Ming.(2021).Extreme precipitation increases the productivity of a desert ephemeral plant community in Central Asia, but there is no slope position effect.JOURNAL OF VEGETATION SCIENCE,32(5).
MLA	Zang, Yong-Xin,et al."Extreme precipitation increases the productivity of a desert ephemeral plant community in Central Asia, but there is no slope position effect".JOURNAL OF VEGETATION SCIENCE 32.5(2021).