干旱区生态环境知识资源中心(Arid): Does the fertile island effect in tamarisk nebkhas enhance in the northern Tarim Basin in the context of global warming?

Arid

DOI	10.1002/ecs2.4666
	Does the fertile island effect in tamarisk nebkhas enhance in the northern Tarim Basin in the context of global warming?
	Yin, Chuanhua; Shi, Qiumei; Zhou, Yangming; Zhang, Ke
通讯作者	Shi, QM
来源期刊	ECOSPHERE
ISSN	2150-8925
出版年	2023
卷号	14 期号:10
英文摘要	With the intensification of global warming, uncertainty regarding ecosystem evolution trends in drylands has increased. The objective of this article was to test whether the desertification process of tamarisk shrubland was intensified by comparing fertile island effects and soil ecological stoichiometry characteristics at different time periods. The tamarisk shrubland in the shrubland and shrub duneland stages in the northern Tarim Basin was selected, and soil samples were collected from the tamarisk nabkhas and from the interspaces between tamarisk nebkhas at the 0- to 30-cm soil layers in 2009 and 2018. Soil carbon (C), nitrogen (N), and phosphorous (P) were analyzed, and the C/N, C/P, and N/P ratios were calculated. In comparison with 2009, fertile island effects were completely collapsed in the shrub duneland stage, with no obvious changes in the shrubland stage in 2018. The average soil C/N ratio decreased from a value greater than 25 in both stages. The average value of soil C/P ratio was below 200 in the shrubland and shrub duneland stages, with almost no marked change after nine years. The soil N/P ratio in our study significantly increased in 2018 than in 2009, but the soil N/P ratio was still much less than 11.9. Significantly positive correlations were observed between the relative interaction index (RII) of soil organic carbon (SOC) and soil total nitrogen (TN) and the soil C/P and N/P ratios in the tamarisk nebkhas. These results suggested that (1) fertile island effects were positive in relation to soil stoichiometry in tamarisk nebkhas in most cases; (2) the desertification process was accelerated in the shrub duneland stage, with no obvious progress during the shrubland stage; and (3) the loss of soil C from the collapsed fertile islands could therefore accelerate global warming.
英文关键词	desertification process fertile island shrub duneland shrubland soil stoichiometry tamarisk nebkhas
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001083836900001
WOS关键词	LEAF-LITTER DECOMPOSITION ; CLIMATE-CHANGE ; TERRESTRIAL ECOSYSTEMS ; P STOICHIOMETRY ; ECOLOGICAL STOICHIOMETRY ; SPATIAL HETEROGENEITY ; SUBTROPICAL FOREST ; CNP STOICHIOMETRY ; SOIL NUTRIENTS ; WIND EROSION
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396035
推荐引用方式 GB/T 7714	Yin, Chuanhua,Shi, Qiumei,Zhou, Yangming,et al. Does the fertile island effect in tamarisk nebkhas enhance in the northern Tarim Basin in the context of global warming?[J],2023,14(10).
APA	Yin, Chuanhua,Shi, Qiumei,Zhou, Yangming,&Zhang, Ke.(2023).Does the fertile island effect in tamarisk nebkhas enhance in the northern Tarim Basin in the context of global warming?.ECOSPHERE,14(10).
MLA	Yin, Chuanhua,et al."Does the fertile island effect in tamarisk nebkhas enhance in the northern Tarim Basin in the context of global warming?".ECOSPHERE 14.10(2023).