徐州市城区土壤pH值、有机质与磁化率特征研究
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摘要
采用野外调查与室内分析相结合的方法,对徐州市城区表层土壤进行了系统采样分析,测定其pH值、有机质和磁化率,并结合相关分析法研究土壤有机质和磁化率间的相关关系。结果表明,徐州市城区土壤总体上呈碱性,但也存在酸化趋势;土壤有机质含量偏低但不同区域差异较大;土壤磁化率总体偏高而频率磁化率较低,表现出污染土壤特征。相关分析表明,土壤有机质含量与磁化率间的相关性较弱,反映了土壤受人为活动的影响较为强烈。
The topsoil samples in urban region of Xuzhou city were analyzed by means of field survey and laboratory analysis,and then the soil p H value,organic matter content and magnetic susceptibility in the samples were measured and the relationship between organic matter content and magnetic susceptibility was studied with the aid of correlation analysis.The results indicated that the urban soil in the mass was alkaline and tended to be acidified gradually,and the content of soil organic matter had a low average with a large fluctuation range,and the magnetic susceptibility was low and frequency susceptibility was relatively high,which showed that the soil may be polluted. The correlation between organic matter and magnetic susceptibility was very weak because of strong influence by anthropogenic disturbance.
The topsoil samples in urban region of Xuzhou city were analyzed by means of field survey and laboratory analysis,and then the soil p H value,organic matter content and magnetic susceptibility in the samples were measured and the relationship between organic matter content and magnetic susceptibility was studied with the aid of correlation analysis.The results indicated that the urban soil in the mass was alkaline and tended to be acidified gradually,and the content of soil organic matter had a low average with a large fluctuation range,and the magnetic susceptibility was low and frequency susceptibility was relatively high,which showed that the soil may be polluted. The correlation between organic matter and magnetic susceptibility was very weak because of strong influence by anthropogenic disturbance.
引文
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[8]解文艳,周怀平,杨振兴,等.黄土高原东部潇河流域农田土壤有机质时空变异及影响因素[J].农业资源与环境学报,2019,36(1):96-104.
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[11]刘宇峰,张仁霞,高改妮,等.城市不同功能区绿地土壤有机质和磁化率特征及其相关性研究———以咸阳市为例[J].科学技术与工程,2015,15(5):311-317.
[12]闫慧,曹军芬,张坤龙,等.许昌市典型区域土壤磁化率与有机质含量的相关性研究[J].地球与环境,2018,46(3):231-236.
[2]袁哲,奚璐翊.土壤污染防治的现状与对策浅析[J].污染防治技术,2018,31(3):19-21,29.
[3]陈秀玲,李志忠,靳建辉,等.福州城市土壤p H值、有机质和磁化率特征研究[J].水土保持通报,2011,31(5):176-181.
[4]姚刚,刘纪元,刘文青.基于扎根理论的城市转型中的城市形象定位研究—以徐州市为例[J].现代城市研究,2014(2):20-24,46.
[5]毛应明,桑树勋,王学松,等.徐州市城区土壤p H值分布特征研究[J].环境科学与技术,2013,36(8):77-80.
[6] Mao Y,Sang S,Liu S,et al. Spatial distribution of pH and organic matter in urban soils and its implications on site-specific land uses in Xuzhou,China[J]. Comptes Rendus Biologies,2014,337:332-337.
[7]于法展,尤海梅,李保杰,等.徐州市不同功能城区绿地土壤的理化性质分析[J].水土保持研究,2007,14(3):85-88.
[8]解文艳,周怀平,杨振兴,等.黄土高原东部潇河流域农田土壤有机质时空变异及影响因素[J].农业资源与环境学报,2019,36(1):96-104.
[9]刘焕军,谢雅慧,潘越,等.黑土区田块土壤有机质空间分异及分布研究[J].土壤通报,2018,49(6):1445-1451.
[10] Karimi R,Ayoubi S,Jalalian A,et al. Relationships between magnetic susceptibility and heavy metals in urban topsoils in the arid region of Isfahan,central Iran[J]. Journal of Applied Geophysics,2011,74:1-7.
[11]刘宇峰,张仁霞,高改妮,等.城市不同功能区绿地土壤有机质和磁化率特征及其相关性研究———以咸阳市为例[J].科学技术与工程,2015,15(5):311-317.
[12]闫慧,曹军芬,张坤龙,等.许昌市典型区域土壤磁化率与有机质含量的相关性研究[J].地球与环境,2018,46(3):231-236.