中国农业大学学报2012，Vol.17Issue(6)：32-44,13.
中国各省大田作物田间秸秆资源量及其时间分布
Field residue of field crops and its temporal distribution among thirty-one provinces of China
摘要
Abstract
To accurately assess the quantity and spatio-temporal distribution of crop residues is essentially important for its sustainable utilization in China.The residue quantities of all the field crops among 31 provinces in mainland China were evaluated by using the latest crop residue index(CRI) based on different province or region.The residue quantities were calculated as standard coal equivalence(SCE) according to the heating value of each crop residue from original papers.During 2007 and 2009 in China,the annual crop residue production was estimated as 735 Mt which was composed of 646 Mt field residues(341 Mt SCE,87.36% SCE) and 89 Mt process residues(50 Mt SCE,12.64% SCE) based on air dried weight.The field residue of cereal crops was evaluated to be 492 Mt(253 Mt SCE) annually,accounting for 74.10%(SCE) of the total field residue,which was including three main crops,i.e.rice residue weight 198.65 Mt(91.78 Mt SCE,26.90%SCE),maize residue weight 149.48 Mt(82.66 Mt SCE,24.23% SCE) and wheat residue weight 143.73 Mt(78.34 Mt SCE,22.96% SCE),respectively.Changes in crop residue quantity was varied from 37.72 Mt(19.08 Mt SCE) in Hubei to 72.95 Mt(40.00 Mt SCE) in Henan province,and the top ten provinces were Henan,Shandong,Jiangsu,Heilongjiang,Anhui,Sichuan,Guangxi,Hunan,Hebei and Hubei.Moreover,the highest field residue quantity was harvested between July and September,accounting for 44.49%(SCE) of crop residues;and only 1.37%(SCE) between January and March.关键词
生物质/田间秸秆/加工副产物/折标煤量/时空分布Key words
biomass/field residue/process residue/standard coal equivalence/spatio-temporal distribution分类
农业科技引用本文复制引用
韦茂贵,王晓玉,谢光辉..中国各省大田作物田间秸秆资源量及其时间分布[J].中国农业大学学报,2012,17(6):32-44,13.基金项目
国家能源局能源节约和科技装备司项目 （）
