干旱区生态环境知识资源中心(Arid): Impact of artificially simulated precipitation patterns change on the growth and morphology of Reaumuria soongarica seedlings in Hexi Corridor of China

Arid

DOI	10.3390/su12062439
	Impact of artificially simulated precipitation patterns change on the growth and morphology of Reaumuria soongarica seedlings in Hexi Corridor of China
	Xie, Yanfei; Li, Yi; Xie, Tingting; Meng, Ruiling; Zhao, Zhiqiang
通讯作者	Li, Yi
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2020
卷号	12 期号:6
英文摘要	Climate change has altered the existing pattern of precipitation and has an important impact on the resistance and adaptability of desert plants. However, the interactive impact and the main characteristics of changes in precipitation amount and precipitation frequency on desert plants are unclear. Reaumuria soongarica seedlings were treated by artificially simulating changes in precipitation (30% reduction and 30% increase) and its frequency (50% reduction). We first introduced three morphological indicators (i.e., main root length/plant height ratio (RHR), above-ground radial density (ARD), and below-ground radial density (BRD)) and drew an abstract figure of seedling growth. This experiment confirmed the following: (1) The increase in precipitation noticeably increased the plant height, above-ground biomass, and total biomass of seedlings. (2) The plant height and the biomass of seedlings were more affected by precipitation amount than by precipitation frequency. No interaction was found between precipitation amount and precipitation frequency on the growth of seedlings. (3) The response of RHR to precipitation changes was extremely significant, increasing with decreasing precipitation and vice versa. (4) The ARD first increased then remained constant as precipitation increased, while ARD first decreased and then increased with decreasing precipitation. When precipitation increases, the BRD increases and the root system becomes relatively thicker and shorter, and vice versa. In this regard, R. soongarica seedlings mainly adapt to their resource supply by adjusting plant height, root length, thickness and biomass.
英文关键词	climate change desert ecosystems precipitation patterns growth and morphology Reaumuria soongarica
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000523751400286
WOS关键词	FREQUENCY ; PRODUCTIVITY ; DROUGHT
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315638
作者单位	Gansu Agr Univ, Coll Forestry, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Xie, Yanfei,Li, Yi,Xie, Tingting,et al. Impact of artificially simulated precipitation patterns change on the growth and morphology of Reaumuria soongarica seedlings in Hexi Corridor of China[J],2020,12(6).
APA	Xie, Yanfei,Li, Yi,Xie, Tingting,Meng, Ruiling,&Zhao, Zhiqiang.(2020).Impact of artificially simulated precipitation patterns change on the growth and morphology of Reaumuria soongarica seedlings in Hexi Corridor of China.SUSTAINABILITY,12(6).
MLA	Xie, Yanfei,et al."Impact of artificially simulated precipitation patterns change on the growth and morphology of Reaumuria soongarica seedlings in Hexi Corridor of China".SUSTAINABILITY 12.6(2020).