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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(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2014年05期
Page:
97-101
Column:
研究论文
publishdate:
2014-09-30

Article Info:/Info

Title:
Using Moran’s I and geostatistics to analyze the spatial distribution of organic carbon in forest soil of Zhejiang province
Article ID:
1000-2006(2014)05-0097-05
Author(s):
TAO Jixing1 FU Weijun2 JIANG Peikun2 DU Qun3 XU Jun1
1. Center for Forest Resource Monitoring of Zhejiang Province, Hangzhou 310020,China;
2. Zhejiang A &
F University, Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestiation, Lin’an 311300,China;
3. World Bank Loan Project Management Office of Zhejiang Province, Hangzhou 310020,China
Keywords:
soil organic carbon Moran’s I geostatistics Zhejiang province
Classification number :
S757
DOI:
10.3969/j.issn.1000-2006.2014.05.019
Document Code:
A
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 city, 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 Zhejiang province. The spatial patterns of SOC were strongly related to human being activity such as planting economic forest, changing soil management and so on.

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Last Update: 2014-10-31