山东省古火山地区土壤元素垂向分布特征与农产品元素富集能力研究

Vertical Distribution Characteristics of Soil Elements and Enrichment Ability of Crop Elements in Ancient Volcanic Areas in Shandong Province

摘要:

在山东省昌乐县的乔官镇、五图镇等地区，分布着46处古火山口，是山东省最为典型的新近纪古火山集中分布地区。为获得该地区表层土壤中地球化学元素垂向分布特征，共设计了3条土壤垂向剖面，对土壤中N、P、K、有机质、Se、Mo、Co、Cu、Zn、Cr、Ni等元素的垂向分布特征进行了研究，并对其变异因素进行了分析。同时，为进一步揭示火山区农产品对各元素的富集能力，选取甜瓜、西瓜、西红柿3种特色农产品为研究对象，查明了不同农产品对土壤元素的富集能力。研究结果表明：火山区所取3种农产品，对Se和Zn元素富集系数相对较高，而对重金属元素相对富集系数较低。

Abstract:

In Qiaoguan town and Wutu town of Changle county in Shandong province, there are 46 ancient craters. It is the most typical Neogene ancient volcanic concentrated distribution area in Shandong province. In order to study the vertical distribution characteristics of geochemical elements in the surface soil of this area, three vertical soil profiles have been designed, vertical distribution characteristics of N, P, K, organic matter, Se, Mo, Co, Cu, Zn, Cr, Ni and other elements in the soil have been studied, and the variation factors have been analyzed. At the same time, in order to further reveal the enrichment ability of various elements of agricultural products in volcanic areas, 3 kinds of typical agricultural products, such as melon, watermelon and tomato have been selected as the research objects, and the enrichment ability of different crops in soil elements have been determined. It is showed that the enrichment of Se and Zn elements is relatively high, while the enrichment of heavy metal elements is relatively low.