干旱区生态环境知识资源中心(Arid): Changes in microbial metabolic C- and N- limitations in the rhizosphere and bulk soils along afforestation chronosequence in desertified ecosystems

Arid

DOI	10.1016/j.jenvman.2021.114215
	Changes in microbial metabolic C- and N- limitations in the rhizosphere and bulk soils along afforestation chronosequence in desertified ecosystems
	Bi, Boyuan; Wang, Yu; Wang, Kun; Zhang, He; Fei, Hongyan; Pan, Ruopeng; Han, Fengpeng
通讯作者	Han, FP (corresponding author)，Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2022
卷号	303
英文摘要	The resource acquisition strategy of soil microorganisms can be reflected by soil extracellular enzyme activity (EEA). However, there are few reports on the application of extracellular enzyme stoichiometry (EES) method to study the difference in microbial metabolic nutrient limitation between rhizosphere and bulk soil. Here, we choose the rhizosphere and bulk soils of Pinus sylvestris var. mongolica (P. sylvestris) plantations with five stand ages in the Mu Us sandy land, and analyzed the variation and differences of microbial metabolic limitation between rhizosphere and bulk soils with stand age by EES method. The results showed that the microbial metabolic C-limitation in the rhizosphere and bulk soil gradually increased with stand age. Almost all the vector angles were less than 45 degrees, which indicated that the soil microbial metabolism was relatively limited by N rather than P. Furthermore, the microbial C- and N-limitation in rhizosphere soils were generally stronger than bulk soils. Soil physical properties (59.73%) explained most of the variations in soil EES based on the variationpartitioning analysis, followed by total nutrients (43.00%). The partial least squares path model suggested that the main driving factor for the variation of soil microbial metabolic C-limitation in the rhizosphere and bulk soils was physical properties, while the microbial N-limitation was for total nutrients. In general, the study emphasized the application of EES methods to assess the dynamic equilibrium between soil microbial resource acquisition and nutrient availability in desert ecosystems. These insights provide guidance for formulating afforestation strategies, such as nutrient management of sandy plantations.
英文关键词	Desertification ecosystems Rhizosphere soil Extracellular enzyme stoichiometry Microbial metabolism Nutrient limitation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000732996500004
WOS关键词	EXTRACELLULAR ENZYME-ACTIVITIES ; ECOENZYMATIC STOICHIOMETRY ; LOESS PLATEAU ; ECOLOGICAL RESTORATION ; VEGETATION RESTORATION ; ORGANIC-MATTER ; NITROGEN ; CARBON ; DYNAMICS ; DECOMPOSITION
WOS类目	Environmental Sciences
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/2XILL650/376934
作者单位	[Bi, Boyuan; Wang, Yu; Wang, Kun; Zhang, He; Fei, Hongyan; Pan, Ruopeng; Han, Fengpeng] Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; [Bi, Boyuan; Han, Fengpeng] Chinese Acad Sci, Inst Soil & Water Conservat, Res Ctr Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China; [Bi, Boyuan; Han, Fengpeng] Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Bi, Boyuan,Wang, Yu,Wang, Kun,et al. Changes in microbial metabolic C- and N- limitations in the rhizosphere and bulk soils along afforestation chronosequence in desertified ecosystems[J],2022,303.
APA	Bi, Boyuan.,Wang, Yu.,Wang, Kun.,Zhang, He.,Fei, Hongyan.,...&Han, Fengpeng.(2022).Changes in microbial metabolic C- and N- limitations in the rhizosphere and bulk soils along afforestation chronosequence in desertified ecosystems.JOURNAL OF ENVIRONMENTAL MANAGEMENT,303.
MLA	Bi, Boyuan,et al."Changes in microbial metabolic C- and N- limitations in the rhizosphere and bulk soils along afforestation chronosequence in desertified ecosystems".JOURNAL OF ENVIRONMENTAL MANAGEMENT 303(2022).