生物炭对酸化茶园土壤性状和真菌群落结构的影响

doi:10.13305/j.cnki.jts.2021.03.008

Abstract

Abstract: The impact of long-term biochar application on soil improvement and fungal community structure in acidified tea gardens is still unclear. Five years after biochar application, the changes of soil properties and fungi community structure in tea gardens with different biochar applications (0, 2.5, 5, 10, 20 and 40 t·hm^-2) were studied. The results show that after applying biochar for 5 years, the pH value of soil increased by 0.16 to 1.11 units, the soluble organic carbon content increased by 52.6% to 92.3%, and the contents of ammonium nitrogen and nitrate nitrogen in soils with 10 t·hm^-2 biochar application were the highest. The changes of soil properties further affected the fungi community structure. The Chao index, ACE index and Shannon index of the fungi community firstly increased and then decreased with the increase of biochar amount. The effect of biochar application on the secondary fungi (LDA value<3.50) was higher than that on dominant fungi (LDA value>3.50). In addition, the relative abundance of Mortierella, Trichoderma and Chaetomium increased after the application of biochar, but the relative abundance of Melanconiella decreased.

Key words: tea garden, yellow soil, biochar, pH, fungi diversity

CLC Number:

S571.1
Q938

WANG Yixiang, HUANG Jiaqing, YE Jing, LI Yanchun, LIN Yi, LIU Cenwei. Effects of Biochar Application on Soil Properties and Fungi Community Structure in Acidified Tea Gardens[J]. Journal of Tea Science, 2021, 41(3): 419-429.

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Effects of Biochar Application on Soil Properties and Fungi Community Structure in Acidified Tea Gardens

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