华南沿海地区林地土壤养分空间异质性研究  

Spatial Heterogeneity Study of Soil Nutrients in Forestland in Coastal Areas of South China

作　　者：郑妍[1] 江瑶 孙冬晓 齐也[2] 张中瑞 ZHENG Yan;JIANG Yao;SUN Dongxiao;QI Ye;ZHANG Zhongrui(Lingnan Integrated Exploration and Design Institute of Guangdong Province,Guangzhou,Guangdong 510663,China;Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization/Guangdong Academy of Forestry,Guangzhou,Guangdong 510520,China)

机构地区：[1]广东省岭南综合勘察设计院,广东广州510663 [2]广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东广州510520

出　　处：《林业与环境科学》2020年第6期110-114,共5页Forestry and Environmental Science

基　　金：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(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”。

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。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.

关 键 词：林地土壤 养分 空间异质性 地统计学 

分 类 号：S714.2[农业科学—林学]