施用生物炭对土壤物理性质影响的研究进展

doi:10.3969/j.issn.1673-503X.2016.03.014

摘要/Abstract

摘要： 生物炭比重、表面结构及孔隙状况等特征对土壤物理性质具有重要的影响，本文综述了国内外施用生物炭对土壤结构、水力特征和热性质影响等方面的研究进展，较全面地总结了生物炭对土壤物理性质的影响。总体而言，施用生物炭可显著降低表层土壤容重，改善土壤孔隙结构，但对土壤团聚性和水力特性的影响具有一定的不确定性。生物炭可调节土壤温度的变化幅度，降低土壤热导率和地表反射率，基于目前关于生物炭对土壤热性质影响的研究较少，其影响机制尚不清楚。本文从生物炭种类、热解条件及土壤类型等方面深入分析了生物炭对土壤物理性质的影响机制，并提出了今后生物炭研究的重点。

关键词: 生物炭, 土壤结构, 水力特征, 土壤热性质

Abstract: The biochar characteristics,e.g.,specific density,surface structures and pore structures may potentially affect soil physical properties.This paper summarized the current research advances about the effect of biochar amendment on soil physical properties with respect to soil aggregation,structure,hydraulic and thermal properties.In general,biochar application reduces the soil bulk density and improves soil pore structure.However,the effects of biochar on soil aggregation and soil hydraulic characteristics show some uncertainty.Biochar application can modify soil temperature variation and reduce soil thermal conductivity and surface albedo,but the relevant mechanisms remain unclear.Additionally,the potential mechanisms that may reveal the changes in soil physical properties induced by biochar addition in terms of biochar types,pyrolysis conditions and soil texture are analyzed in this study and perspectives in future studies are also presented.

Key words: Biochar, Soil structure, Hydraulic characteristics, Soil thermal properties

中图分类号:

S152

赵建坤, 李江舟, 杜章留, 王一丁, 张庆忠. 施用生物炭对土壤物理性质影响的研究进展[J]. 气象与环境学报, 2016, 32(3): 95-101.

ZHAO Jian-kun, LI Jiang-zhou, DU Zhang-liu, WANG Yi-ding, ZHANG Qing-zhong. Effects of biochar application on soil physical properties:a review[J]. Journal of Meteorology and Environment, 2016, 32(3): 95-101.

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http://www.jme1984.net.cn/CN/Y2016/V32/I3/95

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