鼎湖山季风常绿阔叶林土壤有机碳和全氮的空间分布

应用生态学报

鼎湖山季风常绿阔叶林土壤有机碳和全氮的空间分布

张亚茹^1,2,欧阳旭^1,2,褚国伟¹,张倩媚¹,刘世忠¹,张德强¹,李跃林^1**

(¹中国科学院华南植物园, 广州 510650; ^2中国科学院大学, 北京 100049)

出版日期:2014-01-18 发布日期:2014-01-18

Spatial heterogeneity of soil organic carbon and total nitrogen in a monsoon evergreen broadleaf forest in Dinghushan, Guangdong, China.

ZHANG Ya-ru^1,2, OUYANG Xu^1，2, CHU Guo-wei¹, ZHANG Qian-mei¹, LIU Shi-zhong¹, ZHANG De-qiang¹, LI Yue-lin^1

(¹South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; ² University of Chinese Academy of Sciences, Beijing 100049, China)

Online:2014-01-18 Published:2014-01-18

摘要/Abstract

摘要： 运用地统计学分析方法,研究了2010年鼎湖山季风常绿阔叶林中土壤有机碳和全氮含量的空间分布特征.结果表明：在鼎湖山季风常绿阔叶林,土壤有机碳和全氮含量存在着较显著的空间自相关性,其空间异质性分别占总空间异质性的93.6%和53.7%,且土壤有机碳与土壤全氮空间分布特征的异质性一致.林地土壤碳、氮存在传统统计学上的线性相关,同时也具有景观层次上的空间自相关性.指数模型拟合结果表明,在17.4 m小尺度范围内,土壤有机碳存在空间自相关性.

Abstract: Geostatistical techniques were used to quantify the spatial heterogeneity of soil organic carbon and total nitrogen of one monsoon evergreen broadleaf forest area in Dinghushan, Guangdong, China. The results demonstrated that a significant spatial autocorrelation existed between soil organic carbon and total nitrogen contents in the Dinghushan monsoon evergreen broadleaf forest, such that 93.6% and 53.7% of their total spatial heterogeneity originated from their spatial autocorrelation. This observation agreed with a traditional statistics analysis showing a significant linear correlation between soil organic carbon and total nitrogen, and also their spatial autocorrelation existed at a landscape level. The best fit from an exponential model showed that soil organic carbon had high degree of spatial heterogeneity at a scale of 17.4 m.

张亚茹1,2,欧阳旭1,2,褚国伟1,张倩媚1,刘世忠1,张德强1,李跃林1**. 鼎湖山季风常绿阔叶林土壤有机碳和全氮的空间分布[J]. 应用生态学报.

ZHANG Ya-ru1,2, OUYANG Xu1，2, CHU Guo-wei1, ZHANG Qian-mei1, LIU Shi-zhong1, ZHANG De-qiang1, LI Yue-lin1. Spatial heterogeneity of soil organic carbon and total nitrogen in a monsoon evergreen broadleaf forest in Dinghushan, Guangdong, China.[J]. Chinese Journal of Applied Ecology.