| 摘要: |
| 以清远市针叶林为研究对象，通过专题布点和空间分层抽样的方法布设样点，基于样点调查
数据，分析了土壤磷元素及空间分布特征。结果表明：0~60 cm 土壤全磷均值含量在 311.66~315.08 mg/kg
之间，显著高于 60~80 cm（153.33 mg/kg）土壤全磷均值含量，0~60 cm 土层的变异系数分别为 46.34%、
47.74%、46.95%，属于中等程度变异。研究区针叶林分土壤全磷含量在空间分布上存在明显的差异，在
垂直水平表现出随着土层深度的增加而降低的规律，在水平方向上呈现出从东部分别向西北、南部方向
递减的变化趋势。 |
| 关键词: 清远市 针叶林 土壤磷元素 空间分布 |
| DOI： |
| 投稿时间：2022-10-16修订日期：2022-10-16 |
| 基金项目:广东省生态林业建设项目“林地土壤调查”。 |
|
| Study on Soil Phosphorus Elements and Spatial Distribution of Coniferous Forests in Qingyuan City |
| dengzhiwen,dingxiaognag,liyingying,hechaoyin,qiye,wangyang,sundongxiao,zhangzhongrui |
| (Guangdong Academy of Foresty) |
| Abstract: |
| The soil total phosphorus (TP) content and spatial distribution characteristics of the coniferous
forest in the study region were examined using survey data from the sample points. The results showed that the
mean TP content of soil in the 0-60 cm layer ranged from 311.66 to 315.08 mg/kg, which was significantly higher
than the mean TP content of soil in the 60-80 cm (153.33 mg/kg) soil layer, the coefficients of variation in the 0-60
cm layer were 46.34%, 47.74%, and 46.95%, which were moderate variability. There were obvious differences in
the spatial distribution of soil TP content in coniferous forest stands in the study area, which indicated a pattern of
decreasing with increasing soil depth at the vertical level and a trend of decreasing in the horizontal direction from
the east to the northwest and south, respectively. |
| Key words: Qingyuan city coniferous forest soil phosphorus spatial distribution |
