浙江省森林凋落物碳密度空间变异特征  

Spatial Variability Characteristics of Carbon Densities in the Forest Litter in Zhejiang Province

作　　者：张佳佳[1,2] 傅伟军[1] 杜群[3] 张国江[3] 姜培坤[1] 

机构地区：[1]浙江农林大学环境与资源学院 浙江省森林生态系统碳循环与固碳减排重点实验室,临安311300 [2]温州市农业站,温州325000 [3]浙江省森林资源监测中心,杭州311300

出　　处：《林业科学》2014年第2期8-13,共6页Scientia Silvae Sinicae

基　　金：浙江省重点科技创新团队项目(2010R50030);浙江省林业厅项目

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。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.

关 键 词：森林凋落物碳 空间变异 克里格插值 浙江省 

分 类 号：S718.55[农业科学—林学]