干旱区生态环境知识资源中心(Arid): Ecoenzymatic stoichiometry and microbial nutrient limitation of shrub rhizosphere soils in response to arbuscular mycorrhizal fungi inoculation

Arid

DOI	10.1007/s11368-021-03096-6
	Ecoenzymatic stoichiometry and microbial nutrient limitation of shrub rhizosphere soils in response to arbuscular mycorrhizal fungi inoculation
	Liu, Tingyan; Hao, Longfei; Bai, Shulan; Wang, Yanlin
通讯作者	Bai, SL (corresponding author), Inner Mongolia Agr Univ, Coll Forestry, Hohhot 010019, Peoples R China. ; Wang, YL (corresponding author), Inner Mongolia Univ Technol, Sch Econ & Management, Hohhot 010051, Peoples R China.
来源期刊	JOURNAL OF SOILS AND SEDIMENTS
ISSN	1439-0108
EISSN	1614-7480
出版年	2022
英文摘要	Purpose The presence and interaction of shrubs and arbuscular mycorrhizal fungi (AMF) are important for the biogeochemical cycles and sustainable development of arid and semiarid ecosystems. The regulatory mechanisms of the soil microenvironment were explored by studying microbial nutrient constraints in ecosystems. Materials and methods Three native shrubs were planted with and without AMF inoculation in the experimental nursery of Inner Mongolia Agricultural University. The soil chemical properties; enzyme activities related to carbon (C), nitrogen (N), and phosphorus (P) acquisition; and microbial biomass C and N were measured to determine the ecoenzymatic stoichiometries and microbial nutrient limitations of the rhizosphere soils. Results The ratios of ecoenzymes associated with C acquisition in the rhizospheres of Spiraea pubescens were the largest, as well as microbial C limitation. In addition, Clematis fruticosa and Amygdalus mongolica inoculated with AMF significantly increased the ratios of enzymes related to C acquisition and increased microbial C limitation in the rhizospheres of these two shrubs. The ratio of N and P acquisition enzymes showed that A. mongolica and S. pubescens were significantly lower than C. fruticosa, and the lowest microbial P limitation was found in the rhizosphere soil of C. fruticosa in the noninoculated treatment; however, there was no significant difference between shrubs in the inoculated treatment. The microbial P limitation of the shrubs with AMF inoculation could be positive, negative, or not impacted. This result indicated that AMF regulated microbial P limitation in the rhizospheres of shrubs and was closely related to the accumulation of plant biomass. Partial least squares path model analysis indicated that the main influencing factors of microbial C and P limitation were glomalin-related soil protein (GRSP) and soil available nutrients (SANU). Conclusions The results indicated that shrubs and AMF altered the ecoenzymatic stoichiometry of the rhizosphere soils, thus affecting soil microbial nutrient limitation through GRSP and SANU. Native shrubs with AMF inoculation can regulate soil microbial metabolism, providing a theoretical basis for vegetation restoration of degraded ecosystems in drylands.
英文关键词	Arbuscular mycorrhizal fungi Shrub Ecoenzymatic stoichiometry Microbial nutrient limitation Glomalin-related soil protein Soil available nutrients
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000712936600001
WOS关键词	ORGANIC-CARBON ; EXTRACTION METHOD ; LOESS PLATEAU ; PLANT ; NITROGEN ; GLOMALIN ; DESERTIFICATION ; COOPERATION ; FUMIGATION ; GRADIENT
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367586
作者单位	[Liu, Tingyan; Hao, Longfei; Bai, Shulan] Inner Mongolia Agr Univ, Coll Forestry, Hohhot 010019, Peoples R China; [Wang, Yanlin] Inner Mongolia Univ Technol, Sch Econ & Management, Hohhot 010051, Peoples R China
推荐引用方式 GB/T 7714	Liu, Tingyan,Hao, Longfei,Bai, Shulan,et al. Ecoenzymatic stoichiometry and microbial nutrient limitation of shrub rhizosphere soils in response to arbuscular mycorrhizal fungi inoculation[J],2022.
APA	Liu, Tingyan,Hao, Longfei,Bai, Shulan,&Wang, Yanlin.(2022).Ecoenzymatic stoichiometry and microbial nutrient limitation of shrub rhizosphere soils in response to arbuscular mycorrhizal fungi inoculation.JOURNAL OF SOILS AND SEDIMENTS.
MLA	Liu, Tingyan,et al."Ecoenzymatic stoichiometry and microbial nutrient limitation of shrub rhizosphere soils in response to arbuscular mycorrhizal fungi inoculation".JOURNAL OF SOILS AND SEDIMENTS (2022).