The effects of different land-use types on quality of urban soils
KANG Ling-fen1, LI Feng-rui1, HUA Wei2, TAN Jian-an2, YANG Fa-wang2, HEI Wen-long2
1. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000; 2. Center Laboratory of Gansu Province, Lanzhou 730050, China
320 topsoil samples(0~10cm)were collected from five different land-use sites(i.e.industrial areas,roadsides,agricultural areas,residential areas and parks)in Xigu District of Lanzhou city,northwest China.Physical-chemical properties and contents of Pb、Zn、Cu、Cd and Hg in these samples were analyzed to examine the effects of the different land-use types on quality of urban soils.The results showed that(1)soil samples from the industrial areas had the lowest pH but the highest electric conductivity among the five sites;(2)the contents of organic carbon in the roadside soil samples were significantly higher than those in the agricultural,residential and park soils;(3)the contents of Pb,Zn,Cu,Cd and Hg varied significantly between the five sites but were consistently higher than the background values of local soils;and(4)the calculated Nemerow integrated pollution indices were 4.9,3.7,4.0,2.4 and 2.2 for the industrial areas,roadsides,agricultural areas,residential areas and parks,respectively.This study suggests the differential effects of the five different land-use types on the physical-chemical properties and accumulation of heavy metals in urban soils,with the strongest influence by industrial activities,followed by traffic activities,agricultural activities and inhabitant living activities.
康玲芬1, 李锋瑞1*, 化伟2, 谈建安2, 杨发旺2, 黑文龙2. 不同土地利用方式对城市土壤质量的影响[J]. , 2006, 25(1): 59-63.
KANG Ling-fen1, LI Feng-rui1, HUA Wei2, TAN Jian-an2, YANG Fa-wang2, HEI Wen-long2. The effects of different land-use types on quality of urban soils. , 2006, 25(1): 59-63.
[3] Chen T B,Wong J W C,Zhou H Y,et al.1997.Assessment of trace metal distribution and contamination in surface soils of Hong Kong[J].Environmental Pollution,96(1):61-68.
[5] Imperato M,Adamo P,Naimo D,et al.2003.Spatial distribution of heavy metals in urban soils of Naples city(Italy)[J].Environmental Pollution,124:247-256.
[6] Madrid L,Diaz-Barrientos E,Madrid F,et al.2002.Distribution of heavy metal contents of urban soils in parks of Seville[J].Chemosphere,49:1301-1308.
[8] Lu Y,Gong Z T,Zhang G L,et al.2003.Concentrations and chemical speciations of Cu,Zn,Pb and Cr of urban soils in Nanjing,China[J].Geoderma,115:101-111.
[9] Li X D,Lee S C,Wong S C,et al.2004.The study of metal contamination in urban soils of Hong Kong using a GIS-based approach.Environmental Pollution,129:113-124.
[10] Moller A,Müller H W,Abdullah A,et al.2005.Urban soil pollution in Damascus,Syria:concentrations and patterns of heavy metals in the soils of the Damascus Ghouta[J].Geoderma,124:63-71.
[16] Klumpp A,Hintemann T,Santana L,et al.2003.Bioindication of air pollution effects near a copper smelter in Brazil using mango trees and soil microbiological properties[J].Environmental Pollution,126:313-321.
[17] Benfenati E,Valzacchi S,Mariani G,et al.1992.PCDD,PCDF,PCB,PAH,cadmium and lead in roadside soil:relationship between road distance and concentration[J].Chemosphere,24(8):1077-1083.
[18] Tuhácková J,Cajthaml T,Novák K,et al.2001.Hydrocarbon deposition and soil microflora as affected by highway traffic[J].Environmental Pollution,113:255-262.
[19] Hayat S,Ahmad I,Azam Z M,et al.2002.Effect of long-term application of oil refinery wastewater on soil health with special reference to microbiological characteristics[J].Bioresource Technology,84:159-163.
[20] Fakayode S O,Olu-Owolabi B I.2003.Heavy metal contamination of roadside topsoil in Osogbo,Nigeria:its relationship to traffic density and proximity to highways[J].Environmental Geology,44:150-157.
