| 摘要: |
| 我国华南沿海地区土壤具有高度空间异质性，应用地统计学分析方法，探索该地区林地土壤
养分空间分布特征。结果表明：研究区土壤全磷含量缺乏，属于强变异程度，具有较强的空间自相关性，
主要受到地形、土壤母质、气候等结构性因素影响；土壤全钾含量丰富，属于中等变异，空间自相关性
弱，其变异主要是由随机因素如人为干扰或测定误差引起的；全氮和有机碳含量处于中等水平，两者的
空间变异特征比较相似，均具有中等程度的空间自相关性，随机因素对这些养分的影响较大。 |
| 关键词: 林地土壤 养分 空间异质性 地统计学 |
| DOI： |
| 分类号: |
| 基金项目:广东省省级财政专项资金“林地土壤调查”；广东省林业科技计划项目“广东省梅州市森林土壤调查”（2019-07）；广东省生态公益林效益补偿专项“广东省生态公益林可持续经营研究与示范”。 |
|
| Spatial Heterogeneity Study of Soil Nutrients in Forestland in Coastal Areas of South China |
|
ZHENG Yan1, JIANG Yao2, SUN Dongxiao2, QI Ye2, ZHANG Zhongrui2
|
|
1.Lingnan Integrated Exploration and Design Institute of Guangdong Province,Guangzhou;2.Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization/ Guangdong Academy of Forestry,Guangzhou
|
| Abstract: |
| The spatial heterogeneity of soil in the coastal areas of South China is high, and the spatial
distribution characteristics of soil nutrients in the forestland of this area were explored by geostatistical analysis,
so as to provide reference for the improvement of soil fertility and sustainable forest management. The results
showed that the total phosphorus content in the soil of the study area was deficient, which belonged to the degree
of strong variation and had strong spatial autocorrelation, and was mainly affected by structural factors such as
topography, soil parent material and climate. The soil was rich in total potassium, which was a medium variation
with weak spatial autocorrelation. The variation was mainly caused by random factors such as human interference
or measurement error. The contents of total nitrogen and organic carbon were at the medium level. The spatial
variation characteristics of the two were similar, and both had moderate spatial autocorrelation. The random
factors had a greater influence on these two nutrients. |
| Key words: forestland soil nutrient spatial heterogeneity geostatistics |
