生态学报2018，Vol.38Issue(2)：393-404,12.DOI:10.5846/stxb201610112058
生物炭施用的固碳减排潜力及农田效应
Impact of biochar application on carbon sequestration, soil fertility and crop productivity
摘要
Abstract
Global warming and food security have been significant issues in the field of sustainable development.Several studies have shown that biochar amendments markedly contribute to mitigating global warming and food crises and produce beneficial win-win effects.This is mainly because of the high stability and carbon content of biochar,which can enhance the storage of soil carbon and the physical and chemical properties of soil,consequently resulting in increased yields.Therefore,the objective of the present work was to examine previous studies on the efficacy of biochar as a soil amendment and to analyze the intrinsic factors that affect soil carbon reserve and agronomic benefits (including:feedstock,pyrolysis temperature,application rate and soil type).On the basis of the results obtained,a suitable application criterion was proposed,which has shown potential efficiency in carbon sequestration as well as agronomic benefits:biochar derived from pyrolysis of biomass from forestry and harvest residues at a temperature of 300-700℃,with a relatively low dosage of no more than 5％.Finally,we propose future research directions for a better understanding of the effects of biochar on carbon sequestration potential,soil fertility and crop growth.关键词
生物炭/固碳减排潜力/农田效应Key words
biochar/carbon sequestration potential/agronomic effect引用本文复制引用
徐敏,伍钧,张小洪,杨刚..生物炭施用的固碳减排潜力及农田效应[J].生态学报,2018,38(2):393-404,12.基金项目
四川省科技支撑计划项目(2015SZ0007,2016NZ0039) （2015SZ0007,2016NZ0039）
