农业环境科学学报2013，Vol.32Issue(8)：1585-1591,7.DOI:10.11654/jaes.2013.08.014
不同温度制备的生物质炭对土壤有机碳矿化及腐殖质组成的影响
Effects of Biochar Amendments Synthesized at Varying Temperatures on Soil Organic Carbon Mineralization and Humus Composition
摘要
Abstract
Biochar(BC) was produced at 150～600 ℃.A laboratory experiment was conducted to study the influences of biochar synthesized at different temperatures on soil organic carbon (SOC) mineralization and the composition of humus(HS) contents.The results showed that the specific surface area and aromaticity of BC increased with elevated pyrolysis temperature.Soil amended with BC thus produced resulted in increased soil organic carbon(SOC) content after 400 days incubation.Cumulative CO2 release of the soil also changed after BC amendments.The value deceased with increased pyrolysis temperature.For the soils with BC synthesized at temperatures above 400 ℃ the value was lower than that of black soil.In addition,increased HS and humic acid(HA) contents were founded in the samples amended BC produced at temperatures below 400 ℃.However,similar trend was absent in samples with BC produced at temperatures above 400 ℃.Little change of H/F was observed.E4/E6 values of HA in samples with BC synthesized at 200 ℃ and 250 ℃ were significantly higher than those in other treatments,and the values with BC at 500 ℃ and 600 ℃ were significantly lower than other treatments.关键词
生物质炭/热解温度/土壤有机碳/矿化/腐植质Key words
biochar(BC)/ pyrolysis temperature/ soil organic carbon(SOC)/ mineralization/ humus(HS)分类
资源环境引用本文复制引用
王英惠,杨旻,胡林潮,刘玮晶,郭悦,唐伟,代静玉..不同温度制备的生物质炭对土壤有机碳矿化及腐殖质组成的影响[J].农业环境科学学报,2013,32(8):1585-1591,7.基金项目
国家自然科学基金项目(41271246) （41271246）
