南京林业大学学报（自然科学版）Issue(5)：97-101,5.DOI:10.3969/j.issn.1000-2006.2014.05.019
基于Moran's I和地统计学的浙江森林土壤有机碳空间分布研究
Using Morans I and geostatistics to analyze the spatial distribution of organic carbon in forest soil of Zhejiang province
摘要
Abstract
In ordor to study the distribution of forest soil organic carbon ( SOC) , a total of 840 soil sampling sites were laid based on a grid of 4 km×6 km, using portable GPS. Normality test was applied for log-transformed data of forest SOC data. Moran�s I, geostatistics and GIS techniques were used to study the spatial variation and spatial patterns of SOC. Extremely significant spatial auto-correlation of forest SOC was found based on the global Moran�s I value. Local Moran�s I index revealed that high SOC values were located around the area of Qiandao Lake, the west part of Lishui cit-y, while low SOC values were located in the middle part of Zhejiang province. The experimental variogram of SOC was calculated and fitted by exponential model. Further ordinary Kriging was applied to interpolate the SOC in forests of Zhe-jiang province. The spatial patterns of SOC were strongly related to human being activity such as planting economic for-est, changing soil management and so on.关键词
土壤有机碳/Moran's I/地统计学/浙江Key words
soil organic carbon/Moran's I/geostatistics/Zhejiang province分类
农业科技引用本文复制引用
陶吉兴,傅伟军,姜培坤,杜群,徐军..基于Moran's I和地统计学的浙江森林土壤有机碳空间分布研究[J].南京林业大学学报（自然科学版）,2014,(5):97-101,5.基金项目
浙江省林业科技支撑项目（20452000127）；浙江省森林土壤碳库与质量调查研究项目 （）
