Riparian plant-soil-microbial C:N:P stoichiometry: are they conserved at plant functional group level?
Environ Sci Pollut Res Int
; 31(34): 47275-47290, 2024 Jul.
Article
in En
| MEDLINE
| ID: mdl-38990259
ABSTRACT
As a consequence of the tight linkages between plants, soil, and microorganisms, we hypothesized the variations in plant species would change soil and microbial stoichiometry. Here, we examined the plant leaf carbon (C)nitrogen (N)phosphorus (P) ratios of nine species coming from three plant functional groups (PFGs) in the riparian zones of Hulunbuir steppe during near-peak biomass. The soil CNP, microbial biomass carbon (MBC)microbial biomass nitrogen (MBN), and extracellular enzyme's CNP were also assessed using the soils from each species. We found that plant tissue, soil nutrient, microbial, and enzyme activity stoichiometry significantly differed among different PFGs. Plant leaf and soil nutrient ratios tended to be similar (p > 0.05) between different species within the same PFGs. The variations in leaf CNP significantly correlated with the changes in soil CNP and MBCMBN ratios. The homeostatic coefficients (H) < 1 suggested the relationships between plants and their resources CNP ratios might be non-homeostatic in the examined riparian zone. By assessing plant tissue and its soil nutrient stoichiometry, this study provided a perspective to understand the linkages of plant community, soil nutrient, and microbial characteristics.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phosphorus
/
Soil
/
Soil Microbiology
/
Carbon
/
Nitrogen
Language:
En
Journal:
Environ Sci Pollut Res Int
/
Environ. sci. pollut. res. int. (Internet)
/
Environmental science and pollution research international (Internet)
Journal subject:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Year:
2024
Document type:
Article
Affiliation country:
Country of publication: