【摘要】：以貴州地產山銀花不同種植年限土壤為研究對象,通過野外調查與室內分析相結合的方法,對比研究了山銀花不同種植年限下土壤團聚體、土壤肥力和土壤重金屬的污染程度。結果表明:土壤中5~1mm和1~0.25mm團聚體占的比例最高,粒徑大于1.00mm水穩(wěn)性土壤團聚體的總量都是根區(qū)大于非根區(qū),總體上土壤結構性好;堿解N、有效P、速效K,有機質等土壤肥力指標等級大都為Ⅰ級或者Ⅱ級,大部分處于豐富水平,11~20a的根區(qū)土壤養(yǎng)分豐富比例最高;參照貴州省土壤背景,重金屬As隨著種植年限增加污染程度有增加趨勢,總體土壤尚清潔。研究可篩選出高產優(yōu)質山銀花的最佳種植年限,為貴州生產高產優(yōu)質山銀花的栽培管理及施肥技術奠定基礎。
[Abstract]:The soil aggregates, soil fertility and soil heavy metal pollution under different planting years of Lonicera sinensis in Guizhou were studied by combining field investigation with indoor analysis. The results showed that the percentage of 5~1mm and 1~0.25mm aggregates was the highest in the soil, and the aggregate size of the aggregates was larger than that of the water stable soil aggregates of 1.00mm. The total aggregate size of the aggregates was larger in the root zone than in the non-root zone, and the soil structure was good on the whole. Soil fertility indexes such as available N, available P, available K and organic matter were mostly grade 鈪，

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