[Effects of Straw and Biochar Amendments on Characteristics of Soil Fungal Community and Organic Carbon Pool in Jasminum sambac Garden].
Huan Jing Ke Xue
; 45(7): 4228-4240, 2024 Jul 08.
Article
in Zh
| MEDLINE
| ID: mdl-39022969
ABSTRACT
In order to elucidate the changes in the soil fungal community and soil organic carbon components of a Jasminum sambac garden after straw and biochar application, we measured the organic carbon components and soil fungal community of the 0-15 cm soil layer in a J. sambac garden, which was divided into a control group, straw treatment group, and biochar treatment group. The carbon pool management index ï¼CPMIï¼ was also calculated. The results showed that the diversity of the soil fungal community was decreased after straw and biochar application, and the structure of dominant fungal genera was changed in each treatment. The soil fungal community structure in the biochar treatment was significantly different from that in the straw treatment and control groups. Redundancy analysis ï¼RDAï¼ showed that soil fungal community structure was mainly affected by soil bulk density, Câ¶N, salinity, and TN. Secondly, compared with that in the control group, soil labile organic carbon ï¼LOCï¼ in the straw treatment group was significantly increased by 87.44% ï¼P<0.05ï¼, whereas soil dissolved organic carbon ï¼DOCï¼ and microbial biomass carbon ï¼MBCï¼ in the biochar treatment group were significantly increased by 22.27% and 23.17% ï¼P<0.05ï¼, respectively. Further, compared with that in the control group, the carbon pool activity ï¼Lï¼ under straw treatment was significantly increased ï¼P<0.05ï¼, and the carbon pool index ï¼CPIï¼ under biochar treatment was significantly increased ï¼P<0.05ï¼. Spearman correlation analysis showed that the distribution characteristics of soil organic carbon active components were regulated by the dominant fungi. FUNGuild functional prediction results showed that saprophytic and its facultative nutritional fungi had an important impact on soil organic carbon active components and carbon pool management index after straw and biochar application.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Organic Chemicals
/
Soil
/
Soil Microbiology
/
Carbon
/
Charcoal
/
Plant Stems
/
Fungi
Language:
Zh
Journal:
Huan Jing Ke Xue
Year:
2024
Document type:
Article
Affiliation country:
China
Country of publication:
China