陕西科技大学学报（自然科学版）Issue(6)：31-35,5.
生物质炭施用量及水热条件对淹水土壤 CO2释放的影响
Effects of carbon dioxide emissions from waterlogged soils by biochar amendments and hydrothermal condition
摘要
Abstract
A waterlogged soil environment was simulated and added with mass fraction of 0%(C0) ,2% (C2) ,5% (C5) ,and 8% (C8) of biochar to paddy soils to realize the effects of carbon dioxide emissions by biochar amendments and hydrothermal condition under different irrigated water depths and culture temperature .It is aimed at decreasing agricultural green-house gases emissions by means of controlling biochar amendments and improving field man-agement measures .The results showed that there is a significant inhibition of carbon dioxide emission from soils due to biochar amendment .Compared with the control ,cumulative car-bon dioxide emissions from soils by biochar addition of 2% ,5% ,and 8% were reduced by 5 .1% ,2 .4% and 26 .5% respectively .In terms of inhibition of carbon dioxide emission from soils by biochar amendment ,higher biochar amendments might be better than lower amend-ments;with the higher temperature ,the stronger soil respiration became ,and the faster re-lease rate of carbon dioxide was ;on the change of daytime and nighttime about carbon diox-ide emission ,the former was higher than the latter ;as far as irrigated water depth was con-cerned ,a lower release rate of carbon dioxide depends on deeper irrigated water depth .Fur-thermore ,the comprehensive effect on carbon dioxide and methane emissions from soils un-der different biochar amendments and hydrothermal condition also were discussed at last .关键词
生物质炭/温度/淹水深度/水稻土/CO2 释放Key words
biochar/temperature/irrigated water depth/paddy soils/emissions of carbon di-oxide分类
农业科技引用本文复制引用
花莉,唐志刚,洛晶晶,贾卫华..生物质炭施用量及水热条件对淹水土壤 CO2释放的影响[J].陕西科技大学学报（自然科学版）,2013,(6):31-35,5.基金项目
国家自然科学基金项目（41003042）；陕西省科技厅自然科学基金项目（2011JQ5001）；陕西省教育厅科技计划项目（2013JK0890）；陕西科技大学研究生创新基金项目 （）
