文献类型：期刊文献

中文题名：广州市典型森林土壤有机碳密度及储量生态特征

英文题名：Ecological Characteristics of Density and Reserves of Organic Carbon in Typical Forest Soils in Guangzhou

作者：陈步峰[1] 潘永军[1] 史欣[1] 肖以华[1] 徐猛[1]

第一作者：陈步峰

机构：[1]中国林业科学研究院热带林业研究所

年份：2010

卷号：38

期号：4

起止页码：59-61

中文期刊名：东北林业大学学报

外文期刊名：Journal of Northeast Forestry University

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家林业局"948"引进项目(2006-4-18);国家"十一五"林业科技支撑计划专题(2006BAD03A1701)

语种：中文

中文关键词：广州市典型森林群落;土壤有机碳密度;土壤有机碳储量;生态特征

外文关键词：Guangzhou; Typical forest communities; Soil organic carbon density; Soil organic carbon reserves; Ecological characteristics

分类号：S714

摘要：采用森林土壤定位研究方法,对广州市9个典型森林类型(16个森林群落)土壤有机碳(Soil Organic Carbon,SOC)密度及储量特征进行了对比研究。结果表明:地带性常绿阔叶林群落土壤总碳含量为10.9g·kg-1、土壤有机碳含量为7.7g·kg-1,显著地大于次生林、荔子林、竹林、桉树与相思纯林等;常绿阔叶林群落1m柱体单元土壤有机碳储量、密度分别达到112.3t·hm-2、14.8kg·m-2,较常绿阔叶林次生林分别高出18.5t·hm-2、3.4kg·m-2,较竹林、荔子林群落土壤有机碳储量高出22.4～27.8t·hm-2、土壤有机碳密度高出1.9～3.1kg·m-2,较桉树、相思纯林土壤有机碳储量高49.1～50.9t·hm-2、土壤有机碳密度高5.0～5.3kg·m-2;而桉纯林及针阔幼林群落1m柱体单元土壤有机碳密度和储量均小于对照的荒草裸地,这一结果凸显出地带性天然常绿阔叶林群落土壤具有较高碳储存功能。土壤表层碱解N化学含量与1m柱体单元土壤有机碳密度间适宜房屋堆积回归模型的关系,与1m柱体单元土壤有机碳储量间呈逻辑斯蒂回归模型。
A comparative study on density and reserves of Soil Organic Carbon （SOC） was conducted by means of the orientation study of forest soil in nine forest types of Guangzhou City. Results showed that contents of soil total carbon and SOC were 10.9 and 7.7g·kg^-1 respectively in the zonal evergreen broad-leaved forest, which were higher than those of other forest types. Density and reserves of SOC were 14.8kg·m^-2 and 112.3t·hm^-2 respectively in the evergreen broad-leaved primitive forest, which were 3.4kg·m^-2 and 18.5t·hm^-2 higher than those of the evergreen broad-leaved secondary forest. For the evergreen broad-leaved primitive forest, SOC density and SOC reserves were 1.9-3.1kg·m^-2 and 22.4-27.8t·hm^-2 higher than those of the bamboo forest and litchi forest, and 5.0-5.3kg·m^-2 and 49.1-50.9t·hm^-2 higher than those of the pure eucalyptus and acacia forests. SOC density and reserves of the pure eucalyptus and acacia forests were all lower than those of the control （wasteland）. The relationships between SOC density, reserves and soil alkaline hydrolysis N for each forest type could be described by the house pileup model and Logistic regression model, respectively. It is indicated that the evergreen broad-leaved forest in the urban area is a huge soil carbon storage.