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| 遵义市土壤锌空间分布特征研究 |
| Study on spatial distribution of zinc in soils in Zunyi City, China |
| 投稿时间：2018-06-19 |
| DOI：10.13254/j.jare.2018.0158 |
| 中文关键词: 遵义市，土壤，锌，变异特征，普通克里格法，空间分布 |
| 英文关键词: Zunyi City, soil, zinc, variation characteristics, ordinary kriging, spatial distribution |
| 基金项目:中国烟草总公司贵州省公司项目（201506） |
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| 中文摘要: |
| 为了解遵义市土壤锌空间分布现状及其影响因素，在遵义市采集了701个表层土壤样本，分析了样品中的锌含量。利用GS+软件构建半变异函数模型，采用普通克里格法预测了遵义市土壤锌含量空间分布特征，并进一步探讨土壤理化性质对土壤锌含量及其空间分布的影响。结果表明，遵义市土壤全锌含量变幅为40.51~315.74 mg·kg-1，平均值为107.9 mg·kg-1，土壤锌含量高值区和低值区主要集中在遵义市东南部和西南部。土壤全锌含量与pH无显著相关关系，与有机质和海拔高度呈极显著正相关关系。研究表明，遵义市土壤锌的分布地域差异明显，造成这种差异的主要因素是成土母质、有机质和海拔高度。 |
| 英文摘要: |
| The study on soil zinc distribution and its influencing factors in Zunyi City is of great significance for mastering the spatial distribution of zinc in the region, soil environmental protection and human health. We collected 701 representive surface soil samples in Zunyi, and analyzed their zinc concentrations. GS+ software was used to build a semi variant function model, and the ordinary kriging method was used to predict the spatial distribution of zinc in the surface soil of Zunyi. In addition, the potential effects of physical and chemical properties of soil on the concentration and distribution of zinc in soil were also discussed. The results showed that the total zinc content of soil in Zunyi was ranged from 40.51 mg·kg-1 to 315.74 mg·kg-1, with the mean value of 107.9 mg·kg-1, The high and low value areas of soil zinc concentration were mainly concentrated in southeastern and southwestern Zunyi. The content of total zinc in soil had no significant correlation with pH, but had a significant positive correlation with soil organic matter and altitude. The study found that zinc in Zunyi area had obvious distribution in high and low value areas by analyzing the distribution of zinc and its influencing factors in Zunyi. The main factors causing this difference were parent material, soil organic matter and altitude. Spatial prediction of soil properties was complicated. In the future, more attention should be paid to the correlation among soil attributes and the influence of environmental factors, so as to obtain more accurate results. |
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