Assessment of field crop process residues production among different Provinces in China | 中国各省大田作物加工副产物资源量评估

Chinese. 作物加工副产物是秸秆资源的组成部分。本研究明确了加工副产物的概念、其系数取值和计算方法,评估了2007―2009年中国各省市自治区大田作物加工副产物的资源量。各省稻壳系数的取值范围为0.16～0.20,平均值为0.18;玉米芯系数取值范围是0.12～0.22,平均值为0.16;花生壳系数的取值范围为0.25～0.30,平均值为0.27;棉籽壳系数为0.47;甘蔗渣系数为0.16;甜菜渣系数为0.05。全国每年共产稻壳3 438.20万t,在30个省市区的分布量为0.05万t（北京）～451.94万t（湖南）。玉米芯年产量为2 571.67万t,分布范围为0.30万t（西藏）～293.77万t（黑龙江）。此外,花生壳年产量为378.19万t、棉籽壳为549.37万t、甘蔗渣1 881.01万t、甜菜渣43.59万t。稻壳的折标准煤转化系数是0.49,折标准煤量为1 684.72万t;玉米芯是0.60,折标煤1 543.00万t;花生壳0.59,折标煤233.13万t;棉籽壳0.60,折标煤329.62万t;甘蔗渣0.60,折标煤1 128.61万t;甜菜渣0.57,折标煤24.85万t。全国加工副产物每年总产量达到8 862.03万t,折标煤共4 933.93万t。

English. Process residue（PR） is an important part of crop residue resources.The annual yield of field crops PR produced between 2007 and 2009 is evaluated based on provinces of China.The PR conception,PR factor and calculation method are clarified.Among different provinces,rice husk factor varied between 0.16 and 0.20 and averaged at 0.18.Corn cob factor varied between 0.12 and 0.22 and averaged at 0.16.Peanut hull ranged between 0.25 and 0.30 and averaged at0.27.The factors of cotton seed hull,sugarcane bagasse and sugarbeet bagasse are 0.47,0.16 and 0.05,respectively.Annual production of rice husk was 34.38 Mt and ranged between 500 t in Beijing and 4.52 Mt in Hunan among 30 provinces.Corn cob was 25.72 Mt and varied between 3 000 t in Tibet and 2.94 Mt in Heilongjiang among 31 provinces.The annual production of peanut hull cotton seed hull sugarcane bagasse and sugarbeet bagasse were 3.78 Mt,5.49 Mt,18.81 Mt and 0.44 Mt,respectively.The equivalent conversion coefficient from rice husk to standard coal was 0.49 and the equivalent standard coal was 16.85 Mt.For corn cob,the conversion coefficient was 0.60 and the equivalent standard coal was 15.43 Mt.And the conversion coefficients and the equivalent standard coal values were 0.59 and 2.33 Mt for peanut hull,0.60 and 3.30 Mt for cotton seed hull,0.60 and 11.29 Mt for sugarcane bagasse,0.57 and 0.25 Mt for sugarbeet bagasse,respectively.In China,The total PR quantity was 88.62 Mt,which was equivalent to 49.34 Mt of standard coal annually.