气候变化领域集成服务门户(CCPortal): Correlations of the root-shoot ratio with soil water content in the patchy alpine grassland of the north-eastern Qinghai-Tibetan Plateau using electrical resistivity tomography

CCPortal

DOI	10.1002/eco.2593
	Correlations of the root-shoot ratio with soil water content in the patchy alpine grassland of the north-eastern Qinghai-Tibetan Plateau using electrical resistivity tomography
	Zuo, Fenglin; Li, Xiaoyan; Yang, Xiaofan; Jiang, Zhiyun; Li, Zhongkai; Wang, Yang
发表日期	2023
ISSN	1936-0584
EISSN	1936-0592
卷号	16 期号:8
英文摘要	The root-shoot biomass ratio (R:S) changing the soil water redistribution is not well understood due to a lack of nondestructive technology to characterize the coexistence of plants and soil. This study aims to assess the correlations of the R:S ratios of Achnatherum splendens with soil water content by electrical resistivity tomography (ERT) on the north-western Qinghai-Tibet Plateau (QTP). During the growing season, an experimental plot including bare patches (BK) and low- (LD) and high-density (HD) A. splendens subplots was designed to quantify soil volumetric water content under different soil depths and antecedent total precipitation conditions for 7 days (AP7). The results showed that the R:S ratio was positive with soil water content in the surface soil layer of 0-10 cm. The synergistic effect of the R:S ratio on soil water in the surface soil layer promoted an increase in surface soil water. However, the nonsynergistic effect in the middle soil layer weakened the soil water increasing, and the effect of the R:S ratio on soil water in the deep soil layer of 40-80 cm was not obvious. In HD, soil water increased between 0.08% and 0.95% and was highest under AP7 > 20 mm conditions. In LD, soil water increased in the surface and deep soil layers but decreased in the middle soil layer, especially under AP7 = 10-20 mm conditions (-1.23%). These findings provide valuable insights that patchy alpine grass survival strategy under future climate change on the QTP, and the results are beneficial to the development of soil-plant-atmosphere continuum models.
关键词	electrical resistivity tomography patchy alpine grass root-shoot biomass ratio soil volumetric water content
英文关键词	ACHNATHERUM-SPLENDENS; VEGETATION PATTERNS; COMPUTED-TOMOGRAPHY; BULK-DENSITY; MOISTURE; STEMFLOW; BIOMASS; DYNAMICS; THROUGHFALL; VARIABILITY
WOS研究方向	Ecology ; Environmental Sciences ; Water Resources
WOS记录号	WOS:001069000700001
来源期刊	ECOHYDROLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283724
作者单位	Beijing Normal University; Beijing Normal University; Beijing Normal University; Qinghai Normal University; Qinghai Normal University; South China Normal University; Inner Mongolia Normal University
推荐引用方式 GB/T 7714	Zuo, Fenglin,Li, Xiaoyan,Yang, Xiaofan,et al. Correlations of the root-shoot ratio with soil water content in the patchy alpine grassland of the north-eastern Qinghai-Tibetan Plateau using electrical resistivity tomography[J],2023,16(8).
APA	Zuo, Fenglin,Li, Xiaoyan,Yang, Xiaofan,Jiang, Zhiyun,Li, Zhongkai,&Wang, Yang.(2023).Correlations of the root-shoot ratio with soil water content in the patchy alpine grassland of the north-eastern Qinghai-Tibetan Plateau using electrical resistivity tomography.ECOHYDROLOGY,16(8).
MLA	Zuo, Fenglin,et al."Correlations of the root-shoot ratio with soil water content in the patchy alpine grassland of the north-eastern Qinghai-Tibetan Plateau using electrical resistivity tomography".ECOHYDROLOGY 16.8(2023).