Minimum tillage and residue retention increase soil microbial population size and diversity: Implications for conservation tillage
作者: Yuan LiQingping ZhangYanjiang CaiQian YangScott X. Chang
作者单位: 1The State Key Laboratory of Grassland Agro-ecosystems, Lanzhou University, College of Pastoral Agriculture Science and Technology, Lanzhou 730020, China
2Department of Soil and Physical Sciences, Lincoln University, Lincoln 7647, New Zealand
3Manaaki Whenua – Landcare Research, Lincoln 7640, New Zealand
4State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
5Department of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
刊名: Science of the Total Environment, 2020, Vol.716
来源数据库: Elsevier Journal
DOI: 10.1016/j.scitotenv.2020.137164
关键词: Conservation agricultureMicrobial countMicrobial diversityPLFASoil property
英文摘要: Abstract(#br)A global meta-analysis was conducted to evaluate the effect of conservation tillage practices on soil microbial population size [based on microbial count and phospholipid fatty acid (PLFA) measurements], diversity (Shannon index), and microbial community structure. Both no-tillage (NT) and NT plus residue retention (NTS) increased soil microbial count as compared with conventional tillage (CT). Bacteria, fungi, and actinomycete counts were 3%, 18%, and 28%, respectively, higher under the NTS treatment relative to the NT treatment, and 38%, 41%, and 28%, respectively, higher in the CT plus residue retention (CTS) treatment than in the CT treatment. No-tillage, as compared to CT, increased total PLFAs by 11%. The concentration of fungal PLFAs was increased by 17% by NT as...
全文获取路径: Elsevier  (合作)
影响因子:3.258 (2012)

  • tillage 耕地
  • conservation 保存
  • population 母体
  • residue 余渣
  • agriculture 农学
  • increase 增加
  • retention 保留
  • diversity 差异
  • count 计数
  • microbial 微生物的