干旱区生态环境知识资源中心(Arid): Shrubs facilitate herbaceous communities in a desert by modifying soil properties

Arid

DOI	10.1007/s11104-022-05774-x
	Shrubs facilitate herbaceous communities in a desert by modifying soil properties
	Xie, Lina; Han, Lei; Guo, Hongyu; Zhao, Fang; Gao, Fanglei; Zhang, Guogang; Ma, Chengcang
通讯作者	Ma, CC
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2023
卷号	491 期号:1-2 页码:161-176
英文摘要	Background and aims In deserts, some shrubs can facilitate their associated herbaceous communities. Here we tested the hypothesis that such a positive effect of shrubs may be mediated by their roles in modifying soil biotic and abiotic properties. Methods To test these hypotheses, we first compared herbaceous plant communities and soil properties (soil resources and soil organisms) underneath and outside shrubs of five Caragana species. Then we analyzed relationships between the shrub-mediated facilitation effects on herbaceous communities and the effects of shrubs on soil properties. We also tested the effects of soil conditioned by the shrubs on growth of herbaceous plants and estimated the contribution of the soil properties to facilitation. Results In the desert, the Caragana shrubs facilitated their associated herbaceous communities via accumulating more soil resources and soil organisms and conserving more rainwater at shallow soil layers beneath than outside their canopies. Alterations in the distribution patterns of soil resources and soil organisms were significantly correlated with the facilitation effects of the shrubs on the herbaceous communities. The soil factors with important contribution were humidity (path coefficient (PC): 0.389), nutrients (PC: 0.318), organisms (PC: 0.213) and enzymes (PC: 0.122). Conclusion Shrub-mediated horizontal and vertical distributions of soil resources and soil organisms is important drivers of their facilitation effects on the associated herbaceous communities in deserts. Thus, shrubs play an important role as ecosystem engineers in soil resource redistribution and soil organism community establishment, which can influence the assembly of herbaceous plant communities in hyper-arid regions such as deserts.
英文关键词	Caragana Herb Resource island effect Soil organisms Soil resource distribution Soil water holding capacity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000880272700001
WOS关键词	HORQIN SANDY LAND ; CARAGANA-MICROPHYLLA ; SPECIES RICHNESS ; PLANT INTERACTIONS ; HYDRAULIC LIFT ; MICROBIOLOGICAL PROPERTIES ; REFLECTANCE INDEXES ; ECOSYSTEM ; REDISTRIBUTION ; ABUNDANCE
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398019
推荐引用方式 GB/T 7714	Xie, Lina,Han, Lei,Guo, Hongyu,et al. Shrubs facilitate herbaceous communities in a desert by modifying soil properties[J],2023,491(1-2):161-176.
APA	Xie, Lina.,Han, Lei.,Guo, Hongyu.,Zhao, Fang.,Gao, Fanglei.,...&Ma, Chengcang.(2023).Shrubs facilitate herbaceous communities in a desert by modifying soil properties.PLANT AND SOIL,491(1-2),161-176.
MLA	Xie, Lina,et al."Shrubs facilitate herbaceous communities in a desert by modifying soil properties".PLANT AND SOIL 491.1-2(2023):161-176.