Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (9): 46-50.doi: 10.11924/j.issn.1000-6850.casb18120046

• Research article • Previous Articles     Next Articles

The Soil Effect of Biochar: A Review

Junye Zhang1,2(), Xiaodong Liu1, Lin Wang1, Yuanchun Yu1()   

  1. (1)Co-innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037
    (2)Department of Environmental Art Engineering, Henan Polytechnic, Zhengzhou 450046
  • Received:2018-12-12 Revised:2019-03-07 Online:2020-03-25 Published:2020-03-29

Abstract:

To explore the effects of biochar on soil physical and chemical properties, soil mycorrhizal fungi and plants, and provide an effective way to improve soil properties, based on the research results of biochar at home and abroad, this paper mainly studied the soil effect of biochar, systematically expounded the role of biochar and the existing problems after it was added to soil, and analyzed the physical and chemical properties of soil, the reaction of soil mycorrhizal fungi and plants to the addition of biochar. The results show that biochar has high carbon content, alkaline, multi-microporous structure, large specific surface area, rich functional groups on the surface and strong cation exchange capacity. When added to soil, it can increase soil bulk density and soil water holding capacity, increase soil porosity, change soil aggregate distribution, increase soil pH value, increase soil organic matter content and decrease soil nutrient leaching, thus to change soil physical and chemical properties, at the same time, it can promote the growth and colonization of soil mycorrhizal fungi and indirectly affect plant growth and development. As an old and new biomass material, biochar has superior performance in improving soil structure and promoting plant growth, fully understanding the characteristics of biomass charcoal could enable biochar play an important role in building a green and sustainable ecological environment.

Key words: biochar, soil, mycorrhizal fungi, plant

CLC Number: