Effects of Straw and Biochar Amendments on Characteristics of Soil Fungal Community and Organic Carbon Pool in Jasminum sambac Garden

被引：0
|
作者：
Peng J.-H. [1 ,2 ]
Lin S.-Y. [1 ,2 ]
Wang W.-Q. [1 ,2 ]
Zeng Y. [3 ]
Chen M.-C. [4 ]
Yang W.-W. [5 ]
Chen S.-C. [5 ]
机构：
[1] Institute of Geography, Fujian Normal University, Fuzhou
[2] Key Laboratory of Humid Subtropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou
[3] Minrong Tea Co.，Ltd., Fuzhou
[4] Agricultural Bioresources Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou
[5] Agriculture Bureau of Fuzhou City, Fuzhou
来源：
Huanjing Kexue/Environmental Science | 2024年 / 45卷 / 07期
关键词：
biochar; carbon pool management index（CPMI）; fungi; Jasminum sambac garden soil; organic carbon pool; straw;
D O I：
10.13227/j.hjkx.202306194
中图分类号：
学科分类号：
摘要：
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（CPMI）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（RDA）showed that soil fungal community structure was mainly affected by soil bulk density，C∶N，salinity，and TN. Secondly，compared with that in the control group，soil labile organic carbon（LOC）in the straw treatment group was significantly increased by 87. 44%（P<0. 05），whereas soil dissolved organic carbon（DOC）and microbial biomass carbon（MBC）in the biochar treatment group were significantly increased by 22. 27% and 23. 17%（P<0. 05），respectively. Further，compared with that in the control group，the carbon pool activity（L）under straw treatment was significantly increased（P<0. 05），and the carbon pool index（CPI）under biochar treatment was significantly increased（P<0. 05）. 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. © 2024 Science Press. All rights reserved.
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页码：4228 / 4240
页数：12
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