| 摘要: |
| 通过对北江流域森林土壤采样，对其 174 个土壤样点进行研究，对土壤样点分层采样与测定
含量，分析土壤氮养分指标，运用 Arc GIS 技术与地统计分析等方法进一步揭示土壤氮的空间分布特征。
统计分析与空间制图结果显示，4 个土壤层（D1~D4，0~80 cm）氮含量的平均值分别为 1070.492 g/kg、
855.457 g/kg、763.956 g/kg、709.222 g/kg；D1~D4 土壤层随土壤深度的增加，氮含量整体降低，每个土
壤层的空间变异性逐渐减小。 |
| 关键词: 森林土壤 氮 空间分布 北江流域 |
| DOI： |
| 分类号: |
| 基金项目:广东省生态林业建设项目“林地土壤调查”，广东省科技计划项目 (2019-07)。 |
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| Spatial Distribution Characteristics of Forest Soil Nitrogen in Beijiang River Basin |
|
dengzewei, kangjian, sun dongxiao, deng jingyue, zhang geng, li yingying, ding xiaogang
|
|
Guangdong Academy of Forestry Sciences
|
| Abstract: |
| Through the forest soil sampling in Beijiang River basin, 174 soil sample points were studied, the
soil sample points were stratified sampled and the content was measured, the soil nitrogen nutrient index was
analyzed, and the spatial distribution characteristics of soil nitrogen were further revealed by using Arc GIS technology and geostatistical analysis. The results of statistical analysis and spatial mapping showed that the average
nitrogen content of four soil layers (D1-D4) was 1 070.492 g/kg, 855.457 g/kg, 763.956 g/kg and 709.222 g/kg,
respectively; With the increase of soil depth, the nitrogen content in D1-D4 soil layer decreases as a whole, and
the spatial variability of each soil layer decreases gradually |
| Key words: forest soil nitrogen spatial distribution Beijiang River Basin |
