文献类型：期刊文献

英文题名：Biochar addition increased soil bacterial diversity and richness: Large-scale evidence of field experiments

作者：Xiang, Yangzhou[1] Liu, Ying[2] Niazi, Nabeel Khan[3] Bolan, Nanthi[4] Zhao, Ling[5] Zhang, Siyu[1] Xue, Jianming[6,7] Yao, Bin[8] Li, Yuan[9,10]

第一作者：Xiang, Yangzhou

通信作者：Yao, B[1];Li, Y[2]

机构：[1]Guizhou Educ Univ, Inst Guizhou Mt, Sch Geog & Resources, Guizhou Prov Key Lab Geog State Monitoring Watersh, Guiyang 550018, Peoples R China;[2]Guizhou Educ Univ, Sch Biol Sci, Guiyang 550018, Peoples R China;[3]Univ Agr Faisalabad, Inst Soil & Environm Sci, Faisalabad 38040, Pakistan;[4]Univ Western Australia, UWA Inst Agr, Sch Agr & Environm, Perth, WA 6001, Australia;[5]SD Gansu Power Sales Co Ltd, Lanzhou, Gansu, Peoples R China;[6]Nanjing Forestry Univ, Coll Biol & Environm, Nanjing 210037, Peoples R China;[7]Scion, Private Bag 29237, Christchurch, New Zealand;[8]Chinese Acad Forestry, Inst Ecol Conservat & Restorat, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[9]Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Herbage Improvement & Grassland Agro, Natl Field Sci Observat & Res Stn Grassland Agroec, Lanzhou 730020, Peoples R China;[10]Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730020, Peoples R China

年份：2023

卷号：893

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20232514281954);Scopus(收录号：2-s2.0-85162271564);WOS:【SCI-EXPANDED(收录号:WOS:001031587700001)】；

基金：This work was supported by Guizhou Provincial Basic Research Program (Natural Science) (QKHJC-ZK [2022] YB335) , Natural Science Foundation of China (32101431; 32260725; 42161051) , Guizhou Province ordinary colleges and universities youth science and technology talent growth project (QJHKYZ [2021] 246; QJHKYZ [2022] 304) , Scientific Research Fund Project of Guizhou Education University (2020BS019) , National Key Research and Development Program of China (2020YFF0305900) , Natural Science Foundation of Gansu Province (22JR5RA455) , and National Key Technologies R & amp;D Program (2014BAD14B006) .

语种：英文

外文关键词：Biochar; Bacterial community; Meta-analysis; Soil health

摘要：Biochar plays a crucial role in enhancing soil ecological functions and productivity, and mitigating environmental pollution. Despite the available studies conducted through high-throughput sequencing to understand the effects of biochar on soil bacterial diversity and richness, a comprehensive understanding remains elusive. Our global metaanalysis addresses this knowledge gap, incorporating 473 pairs of observations from 84 studies to assess soil bacterial diversity and richness response to biochar addition. We found that biochar application increased bacterial Shannon and Chao1 indices by 0.99 % and 6.45 % respectively. However, these positive effects were context-dependent, especially concerning bacterial diversity. Through aggregated boosted trees analysis, we determined that soil characteristics (including soil organic carbon and nitrogen contents, soil pH, and soil texture) had a more significant influence than biochar properties, experimental conditions, or climatic factors on soil bacterial diversity and richness post biochar addition. In particular, the soil carbon to nitrogen ratio stood out as the leading factor influencing the bacterial Shannon and Chao1 indices following biochar addition. Our findings offer new insights into biochar's influence on soil bacterial activity, taking into account biochar-mediated spatiotemporal variation. This information is pivotal for optimizing biochar characteristics and application to improve soil biological health.