生态与农村环境学报 ›› 2016, Vol. 32 ›› Issue (6): 908-913.doi: 10.11934/j.issn.1673-4831.2016.06.007

• 区域环境与发展 • 上一篇    下一篇

芜湖城区表层土壤黑碳含量及分布特征

朱哲1, 方凤满1,2, 邓正伟1   

  1. 1. 安徽师范大学国土资源与旅游学院, 安徽 芜湖 241003;
    2. 安徽自然灾害过程与防治研究省级实验室, 安徽 芜湖 241003
  • 出版日期:2016-11-25 发布日期:2016-11-30
  • 通讯作者: 方凤满,E-mail:fangfengman74@163.com E-mail:fangfengman74@163.com
  • 作者简介:朱哲(1991-),女,安徽淮南人,硕士生,主要从事土壤与环境研究。E-mail:zhuzhe323921@163.com
  • 基金资助:

    国家自然科学基金(41371480);高等学校博士学科点专项科研基金(20123424120003)

Content and Distribution of Black Carbon in Surface Soil of the Urban Area of Wuhu

ZHU Zhe1, FANG Feng-man1,2, DENG Zheng-wei1   

  1. 1. College of Territorial Resources and Tourism, Anhui Normal University, Wuhu 241003, China;
    2. Anhui Key Laboratory of Natural Disaster Process and Prevention, Wuhu 241003, China
  • Online:2016-11-25 Published:2016-11-30

摘要:

为了解城市化进程中人类活动对城市土壤黑碳积累的影响,以芜湖市区(分为镜湖区、鸠江区、弋江区、三山区和开发区)为例,采集154个表层土壤样品,测定土壤中黑碳及有机碳含量。结果表明,芜湖市土壤黑碳含量在0.02~26.16 g·kg-1之间,平均值为5.87 g·kg-1,变异系数为62.98%;各功能区土壤黑碳含量平均值由高到低排序为镜湖区、鸠江区、三山区、弋江区和开发区;芜湖市土壤黑碳含量主要分布在>5~10 g·kg-1之间,占样品总数的50%。城市土壤黑碳与有机碳含量比值变幅为0.01~0.88,平均值为0.58,表明芜湖市城市土壤黑碳的主要来源为矿物燃料燃烧。各功能区黑碳含量分布存在较大空间差异,这与城市人为活动影响有密切关联。

关键词: 黑碳, 土壤, 城市, 分布特征, 芜湖

Abstract:

In order to investigate effects of human activities in the process of urbanization on accumulation of black carbon in the soil, a total of 154 soil samples were collected from the surface soil of the urban area of Wuhu, including five different function zones, for analysis of contents of organic carbon (OC) and black carbon (BC). Results show that the content of black carbon in the soil of Wuhu varied in the range of 0.02-26.16 g·kg-1, being 5.87 g·kg-1 on average and 62.98% in variation coefficient. The five function zones followed a decreasing order of Jinghu >Jiujiang >Sanshan >Yijiang >the development zone in terms of mean BC content. About 50% of the samples were found to have black carbon >5-10 g·kg-1 in content. The BC/OC ratio in the urban soil varied in the range of 0.01-0.88, being 0.58 on average, which indicates that the BC in the soil of Wuhu City originates mainly from combustion of fossil fuel. BC content varied sharply with function zone in spatial distribution, which is held to be closely related to human activities in the city of Wuhu.

Key words: black carbon, soil, urban, distribution, Wuhu City

中图分类号: