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Association of biochar properties with changes in soil bacterial, fungal and fauna communities and nutrient cycling processes

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posted on 27.08.2021, 06:41 by Z Dai, X Xiong, H Zhu, H Xu, P Leng, J Li, Caixian TangCaixian Tang, J Xu
Soil microorganisms play crucial roles in soil nutrient cycling, carbon sequestration, fertility maintenance and crop health and production. To date, the responses of microorganisms, such as microbial activity, diversity, community structure and nutrient cycling processes, to biochar addition have been widely reported. However, the relationships between soil microbial groups (bacteria, fungi and microscopic fauna) and biochar physicochemical properties have not been summarized. In this review, we conclude that biochar affects soil microbial growth, diversity and community compositions by directly providing growth promoters for soil biota or indirectly changing soil basic properties. The porous structure, labile C, high pH and electrochemical properties of biochar play an important role in determining soil microbial abundance and communities, and their mediated N and P cycling processes, while the effects and underlying mechanisms vary with biochar types that are affected by pyrolysis temperature and feedstock type. Finally, we highlight some issues related to research methodology and subjects that are still poorly understood or controversial, and the perspectives for further research in microbial responses to biochar addition.

Funding

This study was supported by the National Science Foundation of China (41520104001, 41807033), the Young Elite Scientists Sponsorship Program by CAST (2018QNRC001), the Serving Local Economic Development Project of Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University (ZDNY-2020-FWLY01006), and the Fundamental Research Funds for the Central Universities in China.

History

Publication Date

01/09/2021

Journal

Biochar

Volume

3

Issue

3

Pagination

239-254

Publisher

Springer

ISSN

2524-7867

Rights Statement

This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/

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