元氏石榴品质与岩土地球化学特征关系研究

从农业地质研究的角度出发,探讨了成土母岩、土壤地球化学元素对元氏县石榴品质的影响.调查研究发现,在元氏县山区,品质好、产量高的石榴主要分布在黑云斜长片麻岩区,其主要原因是黑云斜长片麻岩风化层厚,裂隙发育,P、Sr、Mn、Zn含量高,Cr、Ni含量低,K含量虽低但主要以易被植物吸收的缓效态存在于黑云母中.土壤地球化学背景分析表明,优质石榴分布区与P、Sr、Mn、Zn的富集区吻合性最好,这也验证了元氏石榴优质产区分布和成土母岩黑云斜长片麻岩分布的一致性.

Relationship between pomegranate quality and geochemical element characteristics in rock and soil in mountain area of Yuanshi County

The paper discussed the relation of pomegranate quality with the mineral nutrition elements among bedrock and soil from eco-agriculture geology view in Yuanshi County,Hebei Province. The result shows that the quality of sweet pomegranate planted in biotite-plagioclase gneiss is better than that planted in other rocks resulting from thicker mantle-rock ,well developed cracks. The higher P,Mn,Zn and Sr contents,and lower Ni and Cr contents are other reasons for the higher quality of pomegranate planted in biotite-plagioclase gneiss. Meantime,though K content of biotite-plagioclase gneiss is lower,it mainly occurs in delay-effective state and be easily absorbed by pomegranate. According to analysis of soil geochemical background, the distribution of high quality pomegranate is accordant with the distribution of abundant P, M n ,Zn,Sr.