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| 青岛市崂山区茶园土壤7种中微量元素空间分布特点 |
| Spatial distribution of medium and trace elements in tea garden soil of Laoshan District，Qingdao City |
| 投稿时间：2024-07-20 |
| DOI：10.13254/j.jare.2024.0548 |
| 中文关键词: 崂山，青岛，茶园土壤，中微量元素，空间变异 |
| 英文关键词: Laoshan, Qingdao, tea garden soil, medium and trace element, spatial variation |
| 基金项目:山东省自然科学基金项目（ZR2021MD066）；茶园土壤分析及农业技术指导项目（6602423008） |
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| 中文摘要: |
| 为探究崂山区茶园空间分布特点及海拔高度对中微量元素的影响，本研究运用Pearson相关性分析、单因素方差分析和地统计学方法，对青岛市崂山区茶园0~20、20~40 cm土层土壤7种中微量元素（Fe、Mn、Cu、Zn、B、S、Mo）含量的空间变异特征及其影响因素进行了研究，分析了崂山区耕地土壤中微量养分含量现状。结果表明，研究区0~20、20~40 cm土层有效硫呈强变异程度，其他中微量元素呈中等变异程度。半方差函数结果表明，土壤有效铁、有效锰、有效铜及有效硼受结构性因素（地形、母质等）和随机性因素（施肥、耕作等）共同影响，0~20 cm 土层上述 7 种中微量元素在研究区的变异系数大小顺序为 S>Zn>Cu>B>Mo>Fe>Mn，20~40 cm土层这7种中微量元素在研究区的变异系数大小顺序为S>Zn>Cu>Mo>B>Mn>Fe。土壤中有效硫、有效铁和有效锌的分布均呈现出南部高、北部低的趋势。相关性分析结果表明，0~20 cm及20~40 cm土层土壤有效铜含量均与有效锌含量、海拔高度呈显著正相关。方差分析结果表明，海拔高度对 0~20 cm 土层土壤中 Fe、Cu、Zn、B、S、Mo含量影响差异性显著（P<0.05），对20~40 cm土层土壤中Cu、B、S含量影响差异性显著（P<0.05）。随着海拔高度的升高，0~20 cm及20~40 cm土层土壤有效铜含量随海拔升高而增加。研究表明，崂山区茶园土壤7种中微元素含量受到海拔、地形、母质等空间特征的影响。 |
| 英文摘要: |
| The yield and quality of tea are affected by the soil environment, especially the content of medium and trace elements. Therefore, the abundance and deficiency of medium and trace elements in the soil of the tea garden play a crucial role in the growth and quality of tea. The spatial variation characteristics and effect factors of 7 medium and trace elements（Fe, Mn, Cu, Zn, B, S, Mo）in 0-20 cm and 20-40 cm soil in Laoshan District of Qingdao City were studied by Pearson correlation analysis, single factor analysis of variance and geostatistics, and the current situation of micronutrient content in the soil in Laoshan District was analyzed. In the study, the available sulfur in 0-20 cm and 20-40 cm soil layers showed strong variation, and other medium and trace elements showed moderate variation. The results of semi variance function showed that the soil available iron, available manganese, available copper and available boron were affected by structural factors（topography, parent material, etc.）and random factors（fertilization, tillage, etc.）. The order of variation coefficients of seven medium and trace elements in 0-20 cm soil layer were as follows：S>Zn>Cu>B>Mo>Fe>Mn. While, the order of variation coefficients of seven medium and trace elements in 20-40 cm soil layer were as follows：S>Zn>Cu>Mo>B>Mn>Fe. The distribution of available sulfur, available iron and available zinc in soil showed a trend of high level in the south and low in the north of tea garden. The results of correlation analysis showed that the soil available copper in 0-20 cm and 20-40 cm soil layers were significantly positively correlated with available zinc and altitude. The results of variance analysis showed that altitude had significant differences in the contents of Fe, Cu, Zn, B, S and Mo in 0-20 cm soil layer（P<0.05）, while it had significant differences in the contents of Cu, B and S in 20-40 cm soil layer（P<0.05）. With the increase of altitude, the soil available copper in 0-20 cm and 20-40 cm soil layers increased with the altitude. The seven medium and trace elements in tea garden of Laoshan are affected by altitude, topography, parent materials, etc. |
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