The experiment suggests that deep gas contains humic gas,sapropel type gas and organogenic gas,with little or minor abiogenetic alkane gas.
采集徐家围子断陷29口井35件深层天然气和26口井33件深层烃源岩样品,采用组分碳同位素和轻烃指纹色谱方法分析天然气和烃源岩样品,实验研究认为深层天然气主要为腐殖型气、腐泥型气、有机深源气3种成因组成的混合气,无机成因烷烃气的贡献较小。
PGPR inoculum and humic acid-contained fertilizer can increase the survival rate of afforestations on loess plateau as well as the output of economic trees.
PGPR接种剂和腐殖酸型肥料对于黄土高原的造林成活率和经济林木的产量都有一定的提高作用。