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Ecological stoichiometry of plant-soil-enzyme interactions drives secondary plant succession in the abandoned grasslands of Loess Plateau, China
Xiao, Lie1; Liu, Guobin2,3; Li, Peng1; Xue, Sha2,3
2021-07-01
Source PublicationCATENA
ISSN0341-8162
Volume202Pages:12
Corresponding AuthorXue, Sha(xuesha100@163.com)
AbstractEcological stoichiometry is the study of the interaction and balance of multiple chemical elements in ecological processes. However, how ecological stoichiometric interactions among plants, soils, and enzymes in the rhizosphere affect secondary plant succession is largely unknown. In this study, we collected the dominant and main companion species Artemisia capillaris, A. sacrorum, and Stipa bungeana, along a secondary succession chronosequence (7, 12, 17, 22, and 32-year) following a cropland abandonment in the Loess Plateau, China. We measured the carbon (C), nitrogen (N) and phosphorus (P) concentrations of plant shoots and roots, as well as the concentrations of C, N, P, available N (aN), available P (aP), and the activity of one C-acquiring enzyme (beta-glucosidase (BG)), two N-acquiring enzymes (N-acetylglucosaminidase (NAG), leucineaminopeptidase (LAP)), and one P-acquiring enzyme (alkaline phosphatase (AP)) found in the rhizospheric soil to explore the C:N:P stoichiometry that drives secondary plant succession. The C:P and N:P ratios in the shoots of dominant plant species significantly decreased to a minimum value at the 22-year site and then increased with plant secondary succession. Compared with the 7-year site, the rhizosphere soil C:P and N:P ratios, and enzyme N:P ratios (ln (NAG + LAP):ln(AP)) increased 103.6%, 72.0%, and 221.3%, respectively, but enzyme C:N ratios (ln(BG):ln (NAG + LAP)) decreased 48.2% in the dominant plant species at the 32-year site. Principal component analysis indicated that the stoichiometry characteristics of the plant-soil-enzyme continuum differed for each plant species and succession stage. Stoichiometric homeostasis indices for the plant species indicated a relatively strong homeostasis, while redundancy analysis revealed that the variations in soil BG, NAG, and AP activity and enzyme C:N ratio had significant effects on the stoichiometries and nutrient concentrations of the plant tissues. The results indicated that rhizosphere stoichiometry is a powerful tool for evaluating plant-soil interactions in terrestrial ecosystems and that the variation in rhizospheric soil enzyme activity driving the secondary succession of plants.
KeywordEcological stoichiometry Enzyme activity Grassland Rhizosphere Secondary succession Soil nutrients
DOI10.1016/j.catena.2021.105302
WOS KeywordMICROBIAL COMMUNITY STRUCTURE ; BACTERIAL COMMUNITY ; CNP STOICHIOMETRY ; ECOENZYMATIC STOICHIOMETRY ; BIOLOGICAL STOICHIOMETRY ; EXTRACELLULAR ENZYMES ; NATURAL RECOVERY ; RHIZOSPHERE SOIL ; FOREST GROWTH ; NITROGEN
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41701603] ; National Key Research and Development Program of China[2017YFD0800502] ; Shaanxi Province Innovation Talent Promotion Project Technology Innovation Team[2018TD037]
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; Shaanxi Province Innovation Talent Promotion Project Technology Innovation Team
WOS Research AreaGeology ; Agriculture ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:000643594100059
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/162826
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXue, Sha
Affiliation1.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg, Xian 710048, Shaanxi, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Lie,Liu, Guobin,Li, Peng,et al. Ecological stoichiometry of plant-soil-enzyme interactions drives secondary plant succession in the abandoned grasslands of Loess Plateau, China[J]. CATENA,2021,202:12.
APA Xiao, Lie,Liu, Guobin,Li, Peng,&Xue, Sha.(2021).Ecological stoichiometry of plant-soil-enzyme interactions drives secondary plant succession in the abandoned grasslands of Loess Plateau, China.CATENA,202,12.
MLA Xiao, Lie,et al."Ecological stoichiometry of plant-soil-enzyme interactions drives secondary plant succession in the abandoned grasslands of Loess Plateau, China".CATENA 202(2021):12.
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