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。
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 0-60cm 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.
作者
邓智文
丁晓纲
李莹莹
齐也
王洋
孙冬晓
张中瑞
DENG Zhiwen;DING Xiaogang;LI Yingying;QI Ye;WANG Yang;SUN Dongxiao;ZHANG Zhongrui(Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization/Guangdong Academy of Forestry,Guangzhou,Guangdong 510520,China)
出处
《林业与环境科学》
2022年第5期1-5,共5页
Forestry and Environmental Science
基金
广东省生态林业建设项目“林地土壤调查”。
关键词
清远市
针叶林
土壤磷元素
空间分布
Qingyuan city
coniferous forest
soil phosphorus
spatial distribution
