浙江省森林凋落物碳密度空间变异特征

摘要/Abstract

摘要：

基于浙江省森林资源监测中心2010年6—9月的森林凋落物碳密度数据和浙江省森林资源连续清查（CFI）数据，利用克里格插值法研究浙江省森林凋落物碳密度空间变异特征。结果表明：浙江省森林凋落物碳密度为10.2~4 589.8 kg ·hm^-2，均值为1 627.1 kg ·hm^-2，森林凋落物平均碳密度在全国范围内处于较低水平；浙江省森林凋落物碳密度变异系数为0.54，半变异函数基台效应（Nugget/Sill）为62.75%，变程为42.69 km，其空间分布存在区域差异；克里格插值显示浙江省森林凋落物碳密度由内陆至东南沿海呈下降趋势。

关键词: 森林凋落物碳, 空间变异, 克里格插值, 浙江省

Abstract:

Based on data of Forest Resources Monitoring Center and Continuous Forest Inventory (CFI) System in Zhejiang Province from June to September 2010, spatial variability of carbon densities in forest litter in Zhejiang Province was studied by using the Kriging interpolation method. The results showed that carbon densities in the forest litter ranged from 10.2 to 4 589.8 kg ·hm^-2with the mean value of 1 627.2 kg ·hm^-2, which was at relatively low-level in China. Variation coefficient of carbon densities in the forest litter in Zhejiang was 0.54, Nugget/Sill ratio value was 62.75%, and the variation range was 42.69 km, suggesting that there was spatial variation in carbon densities in the forest litter in Zhejiang. The Kriging interpolation method showed that carbon densities in the forest litter in Zhejiang exhibited a decreased tendency from inland to the southeastern coast and its spatial distribution was basically consistent to the alignment of mountain ridge.

Key words: forest litter carbon, spatial variability, Kriging interpolation, Zhejiang Province

中图分类号:

S718.55

张佳佳, 傅伟军, 杜群, 张国江, 姜培坤. 浙江省森林凋落物碳密度空间变异特征[J]. 林业科学, 2014, 50(2): 8-13.

Zhang Jiajia, Fu Weijun, Du Qun, Zhang Guojiang, Jiang Peikun. Spatial Variability Characteristics of Carbon Densities in the Forest Litter in Zhejiang Province[J]. Scientia Silvae Sinicae, 2014, 50(2): 8-13.

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