生物技术进展 ›› 2011, Vol. 1 ›› Issue (4): 266-275.DOI: 10.3969/j.issn.2095-2341.2011.04.07

• 进展评述 • 上一篇    下一篇

生物焦对土壤生态系统的影响效应

王娟,姚槐应*   

  1. 浙江大学环境与资源学院资源科学系, 杭州 310058
  • 收稿日期:2011-07-22 出版日期:2011-10-25 发布日期:2011-08-15
  • 通讯作者: 姚槐应,博士,副教授,研究方向为土壤微生物生态。E-mail:huaiyingyao@zju.edu.cn
  • 作者简介:王娟,硕士研究生,研究方向为土壤微生物生态。
  • 基金资助:

    国家自然科学基金项目(41090283,30871600)资助。

Biochar Effects on Soil Ecosystem: A Review

WANG Juan, YAO Huai-ying   

  1. Department of Resource Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
  • Received:2011-07-22 Online:2011-10-25 Published:2011-08-15

摘要: 生物焦是生物残体在厌氧条件下高温裂解产生的,其主要成分为碳,芳香化程度很高,具有孔隙多、比表面积大、电荷密度高、不易分解等特点。目前的一些研究显示,生物焦具有提高土壤阳离子交换量(CEC)和pH、改善土壤肥力和健康状况、增加作物产量、减少温室气体排放等作用。生物焦施于土壤后,还具有增加土壤微生物量、改变土壤微生物群落结构,促进部分微生物生长等影响效应。然而,目前有关生物焦的研究还大都局限于表观效应上,缺乏对其微观内在机制的深入探讨。

关键词: 生物焦, 土壤生态, 理化性质, 微生物

Abstract: Biochar is produced by the pyrolysis of natural organic materials under oxygen-limited conditions. The key component element is carbon and the extent of aromatization is very high. The characteristics of biochar include highly porosity, big specific surface area, high charge density and decomposition resistant. Many studies suggest that biochar can change soil CEC and pH, improve soil fertility and health condition, increase crop yield and reduce greenhouse gas emissions. After amendment with biochar, soil microbial biomass is increased and microbial community structure is shift. Nevertheless, previous studies about biochar are still limit on apparent phenomenon. Further studies are needed to understand the inherent micro-mechanism of the biochar effects.

Key words: biochar, soil ecology, physic-chemical properties, microbial community