西南林业大学学报2017，Vol.37Issue(6)：119-123,5.DOI:10.11929/j.issn.2095-1914.2017.06.019
芦芽山云杉纯林土壤无机氮含量的小尺度空间异质性研究
Small-scale Spatial Heterogeneity of Soil Inorganic Nitrogen Content of Picea asperata Pure Forest in Luya Mountain
摘要
Abstract
In order to understand the structural characteristics of soil inorganic nitrogen in natural secondary Picea asperata pure forest, this study took Luya Mountain typical natural secondary P. asperata pure forest in North China as research object. Based on the theory and method of geostatistics, small-scale spatial heterogeneity of soil nitrate nitrogen and ammonium nitrogen content of P. asperata pure forest at the same elevation in Luya Mountain was analyzed. Results showed that variable coefficient of soil nitrate nitrogen and ammonium nitrogen was strong in plot 1 because of microrelief. The coefficient of variation of soil nitrate nitrogen and ammonium nitrogen in plot 2 and plot 3 was moderate variation. Soil heterogeneity of ammonium nitrogen was higher than nitrate nitrogen. The content of soil ammonium nitrogen in all plots and soil nitrate nitrogen in plot 1 showed spatial auto-correlated varia-tion in the whole range of the research area. The content of soil nitrate nitrogen showed a smaller scale spatial auto-correlated variation in plot 2 and plot 3.关键词
云杉/土壤/硝态氮/铵态氮/空间异质性Key words
Picea asperata/soil/nitrate nitrogen/ammonium nitrogen/spatial heterogeneity分类
农业科技引用本文复制引用
贾振虎..芦芽山云杉纯林土壤无机氮含量的小尺度空间异质性研究[J].西南林业大学学报,2017,37(6):119-123,5.基金项目
广东省林业科技创新项目(2014KJCX011、2016003)资助 （2014KJCX011、2016003）
广东省省级科技计划项目(2013B020305003)资助. （2013B020305003）
