[1]刘金福,苏松锦,何中声,等.格氏栲天然林土壤有机碳空间分布及其影响因素[J].山地学报,2011,(06):641.
　LIU Jinfu,SU Songjin,et al.Spatial Distribution and Influencing Factors of Soil Organic Carbon in Midsubtropical Castanopsis kawakamii Natural Forest[J].Mountain Research,2011,(06):641.
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格氏栲天然林土壤有机碳空间分布及其影响因素()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2011年06期
页码:
641
栏目:
山地学报
出版日期:
2011-01-01

文章信息/Info

Title:
Spatial Distribution and Influencing Factors of Soil Organic Carbon in Midsubtropical Castanopsis kawakamii Natural Forest
作者:
刘金福;苏松锦;何中声;洪伟;吴彩婷;董金相;黎丽珍;
1.福建农林大学林学院，福建 福州 350002；
2.福建省高校生态与资源统计重点实验室，福建 福州 350002
Author(s):
LIU Jinfu; SU Songjin; HE Zhongsheng; HONG Wei; WU Caiting;  DONG Jinxiang; LI Lizhen
1. College of Forestry，Fujian Agriculture and Forestry University，Fuzhou 350002，China；
2. Key Laboratory of Fujian Universities for Ecology and Resource Statistics，Fuzhou 350002，China
关键词:
格氏栲; 土壤有机碳; 泰森多边形; 空间分布
Keywords:
Castanopsis kawakamii forest; soil organic carbon; Voronoi; spatial distribution
分类号:
S153
文献标志码:
A
摘要:
采用GIS技术对格氏栲天然林土壤有机碳空间分布特征及其影响因素进行研究,结果表明:土壤有机碳含量(O)、土壤有机碳密度、土壤有机碳储量均属于中等变异,且随土层深度的增加而减少,表层富集现象明显。土壤有机碳含量在Ⅰ层(0～20 cm)为32.15 g/kg,分别是Ⅱ层(20～40 cm)、Ⅲ层(40～60 cm)的2.35、4.63倍,剖面均值为17.60 g/kg;土壤有机碳密度在Ⅰ～Ⅲ层分别为6.76 kg/m2、3.17 kg/m2、1.74 kg/m2,土壤剖面平均有机碳密度为11.67 kg/m2。引入泰森多边形替代土壤类型图,计算得格氏栲天然林土壤有机碳储量为1.49×104 t,Ⅰ...
Abstract:
GIS technology was applied to study the spatial distribution and influencing factors of soil organic carbon in the midsubtropical Castanopsis kawakamii natural forest of Sanming City，Fujian Province. The results showed that the variation of organic carbon content（O），density and reserve of soil all are moderate，descending with the increase of soil depth and mostly aggregating in layerⅠ（0 ~ 20 cm）. The soil organic carbon content in layer Ⅰ was 32.15 g/kg，2.35，4.63 times than the layer Ⅱ（20 ~ 40 cm）and layer Ⅲ（40 ~ 60 cm）respectively， and the entire profile was 17.60 g/kg. The soil organic carbon density layerⅠ~ Ⅲ were 6.76 kg/m2，3.17 kg/m2 and 1.74 kg/m2 respectively， the average soil organic carbon density was 11.67 kg/m2. Soil organic carbon reserve in C.kawakamii National Forest Park stored at 0 ~ 60 cm was about 1.49 × 104 t，layer Ⅰ，Ⅱ，Ⅲ were 8.66 ×103 t，4.01 ×103 t，2.20 ×103 t respectively，which were calculated with voronoi. Soil organic carbon content and density have similar spatial distribution in southwest and northeast，which both have a high value area，along with the direction of WN-ES. They emerged stripe distribution，regularly decreasing from WS-EN line to northwest and southeast respectively. The results of correlation analysis and stepwise regression analysis showed that soil organic carbon content associated with soil physicochemistry properties，reaching a significant level，and were positively correlated with total nitrogen，total phosphorus，hydrolyzable nitrogen，available phosphorous， available potassium， negatively correlated with the PH， total potassium and soil bulk density，and can be further described by the formula: O = 27.77 + 37.88 TN + 0.05 AN + 59.69 TP - 7.28 pH - 7.04 B. The effects of topography，soil physicochemistry properties and human disturbance on soil organic carbon in C.kawakamii forest were also analyzed. All these results may be available for enhancing the precision of soil organic carbon reserve，assessing ecoefficiency of the C.kawakamii natural forest and its roles and functions in regional carbon cycle.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2011-04-15；改回日期(Accepted)：2011-09-30。
基金项目（Foundation item）：福建省自然科学基金重点项目( 2008J0008 ) ；教育部博士点
基金项目( 200803890011 )；博士后
基金项目( 20070410796 )。\[ Supported by the Key Program of Natural Science Foundation of Fujian Province of China, No. 2008J0008; Doctoral Fund of Ministry of Education of China,No. 200803890011; China Postdoctoral Science Foundation, No. 20070410796. \]
作者简介（Biography）：刘金福(1966-)，男，福建永春，教授、博导，主要从事森林生态学研究。\[ Liu Jinfu(1966-), male, Ph·D, Professor, major in forest ecology. \] E-mail：fjljf@126.com
更新日期/Last Update: 1900-01-01