东北地区城市不同土地利用类型土壤有机碳含量特征  

Contents of Organic Canbon Urban Soil in Different Land Use Type Areas,Northeast China

作　　者：段迎秋[1] 魏忠义[1] 韩春兰[1] 孔令苏[1] 王秋兵[1] 

机构地区：[1]沈阳农业大学土地与环境学院,沈阳110161

出　　处：《沈阳农业大学学报》2008年第3期324-327,共4页Journal of Shenyang Agricultural University

基　　金：国家自然科学基金项目(40235054);辽宁省自然科学基金项目(2040520)

摘　　要：以辽宁省沈阳市为例,采用传统的SPSS统计方法对城市土壤(0～10cm)有机碳(总有机碳、颗粒态有机碳、易氧化态有机碳、黑碳)含量特征进行了分析,揭示了不同土地利用类型城市土壤有机碳含量变化规律,为城市土壤的合理利用以及保护城市环境提供依据。结果表明:不同土地利用方式下,总有机碳、颗粒态有机碳、易氧化态有机碳、黑碳含量的平均值最大值分别出现在工业区、居民区、公园、工业区,分别为22.134 g.kg-1、9.092 g·kg-1、3.129 g·kg-1和17.232 g·kg-1,对应的变异系数分别为94.3%、64.0%、36.0%和113.4%。城市土壤有机碳含量具有一定的富集,且变异性较大,这与城市人为活动有密切关系。Taking Shenyang City as an example,traditional statistics mothed was applied to reveal the content characteristics of urban soil, including tutal organic carbon, particulate carbon, readily oxidizable organic and black carbon in the top soil （0- 10cm）. The results showed that the content of total organic carbon, particulate carbon, readily oxidizable organic and black carbon in industrial area, residential district, park, industrial areas in turn were 22.134g·kg^-1, 9.092g·kg^-1, 3.129g·kg^-1 and 17.232 g·kg^-1. The corresponding variation coefficients were 94.3%, 64.0%, 36.0% and 113.4%. The organic carbon content of urban soils have accumulated in a certain degree,and the variability of urban soils was great. The characteristics of urban soil organic carbon content were closely related to human activities.

关 键 词：城市土壤 有机碳 利用类型 变异性 

分 类 号：S227.9[农业科学—农业机械化工程] S232.9[农业科学—农业工程]