贵州野生小檗属植物土壤与植株微量元素相关性及富集特征

Correlation and Enrichment Characteristics of Trace Elements in Soil and Plant of Wild Berberis in Guizhou

【目的】了解贵州野生小檗植物属土壤和植株(根)中微量元素含量及其富集特征,为其种植提供理论依据。【方法】测定贵州野生小檗属土壤和植株(根)中微量元素含量,分析讨论土壤与植株(根)中微量元素的相关性与植株(根)对微量元素的富集能力。【结果】毕节小檗、易门小檗、威宁小檗、永思小檗及壮刺小檗土壤全量为Fe>Mn>Zn>Cu>Mo,巴东小檗、古宗金花小檗及平坝小檗为Fe>Mn>Cu>Zn>Mo;土壤Cu全量最高为巴东小檗,Fe为永思小檗,Mn为威宁小檗,Mo为壮刺小檗,Zn为威宁小檗;土壤Cu有效量最大值为毕节小檗,Fe为巴东小檗,Mn和Mo为威宁小檗,Zn为古宗金花小檗;根中Cu、Mn全量最高为古宗金花小檗,Fe和Mo为壮刺小檗,Zn为永思小檗。【结论】土壤-植株系统中微量元素有一定的相关性,毕节小檗中以微量元素Cu富集系数最高且大于1,其余微量元素富集系数均小于1;贵州野生小檗属不同地区土壤微量元素有效量比全量的地区差异性更明显。

【Objective】The objective of this paper was to understand the content and enrichment characteristics of trace elements in soil and plant(root)of wild Berberis in Guizhou Province and to provide the theoretical reference for cultivation of wild Berberis.【Method】The contents of trace elements in soil and plant(root)were determined,and the correlation of trace elements between soil and plant(root)and the enrichment ability of plant(root)to trace elements were discussed.【Result】Total amount of soil trace elements of Berberis guizhouensis Ying,B.pruinosa var.barresiana Ahrendt,B.weiningensis Ying,B.tsienii Ying and B.deinacantha Schneid.was Fe>Mn>Zn>Cu>Mo;B.veitchii Schneid.,B.wilsonae var.guhtzunica(Ahrendt)Ahrendt,B.pingbaensis M.T.An was Fe>Mn>Cu>Zn>Mo.The highest content of the soil total amount of Cu was B.veitchii,the total amount of Fe was B.tsienii,the total amount of Mn was B.weiningensis,the total amount of Mo was B.deinacantha,the total amount of Zn was B.weiningensis.The highest content of the soil available amount of Cu was B.guizhouensis,the available amount of Fe was B.veitchii,the available amount of Mn and Mo was B.weiningensis,the available amount of Zn was B.wilsonae var.guhtzunica.The highest content of Cu and Mn in the roots of was B.wilsonae var.guhtzunica.,Fe was B.deinacantha,Mo was B.deinacantha,Zn was B.tsienii.【Conclusion】The trace elements between soil and plant(root)were correlated to some extent.The enrichment coefficient of Cu of B.guizhouensis was the highest and was greater than 1,and the other trace elements enrichment coefficient was less than 1.The content of the available trace elements in the soil of non-area of Berberis in Guizhou Province was more obvious than that of the whole area.