摘要
采用"GB/T1931-2009"规定的方法测定了伊春市6种菌用阔叶树木屑自然晾干后的含水率,并采用元素分析仪法、火焰原子吸收法测定了6种菌用阔叶树木屑的碳氮比和K、Ca、Mg、P四种矿物质元素含量。测定结果表明:自然晾干后6种木屑含水率差异不大,平均含水率为6.84%;各树种的碳氮比差异较大,毛赤杨、桦木、柳木、榆木、榛木、蒙古栎的碳氮比分别为72.46/1、75.97/1、64.80/1、86.30/1、54.71/1、72.84/1,最高与最低相差31.59;K、Ca、Mg、P四种矿物质元素含量在各树种之间也有较大差异。
This study determined the moisture content after natural air of six kinds of bacteria with broadleaf sawdust with the ＂GB/T1931 -2009＂ method, using elemental analyzer method and flame atomic absorption method to determine the carbon nitrogen ratio and the content of K, Ca, Mg, P of six kinds of bacteria with broadleaf sawdust. The results indicated that： the gap of six kinds of wood moisture content after natural air was not significant and the average moisture content was 6. 84% ; the carbon nitrogen ratio of tree species were significantly different, the carbon nitrogens ratio of Alnus sibirica, Betuta spp., Salix spp., ulmus spp., corytus spp. Quercus mongolica, Willow, Ulmus pumila, Hazel, Mongolian oak is： 72.46/1, 75.97/1, 64. 80/1, 75.97/1, 54. 71/1, 72. 84/1, it showed that the highest is 31.59 more than the lowest. The four kinds of mineral elements content also has a significant difference among all tree species.
出处
《林业科技》
2014年第5期40-42,共3页
Forestry Science & Technology
关键词
阔叶树
木屑
营养成分
化验分析
Broad-leaved
Sawdust
Nutritional components
Composition analysis
