陇东黄土塬区农作物中石油有机质分布规律

Oil organic distribution in crops in Longdong loess tableland area

通过现场采样、室内实验分析,分别检测陇东石油开发区农田土壤、典型作物不同部位之间的石油有机质质量分数.结果显示:在所有样品之中,土壤中的有机质质量分数较植物样品中的要低,当土壤中的石油烃质量分数超过50×10-6时就会对农作物生长和农产品品质造成影响;在作物不同部位中,叶中的质量分数最高、其次为茎、根的.说明作物对石油有机质有很好的迁移转化能力,并不断向末端组织富集,对农产品品质造成影响.

The contents of organic matter in soil samples and different parts of typical crops in Longdong field were examined through investigation and laboratorial analysis and the results show that there are less organic matter in soils than in plant samples and the contents are different in different parts of crops： leaves have higher contents,followed by stems and the content in roots is the lowest.It shows that crops have strong mobility and transfer capacity for oil organic matter and can be enriched in the end organization.Finally this will influence the quality of production.