Heavy metal soil pollution in the Qinhuai River riparian zone

LI Dong-lin; JIN Ya-qin; ZHANG Ji-lin; RUAN Hong-hua

Volume 25 Issue 2

Jun. 2018

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LI Dong-lin, JIN Ya-qin, ZHANG Ji-lin, RUAN Hong-hua. Heavy metal soil pollution in the Qinhuai River riparian zone[J]. Journal of Zhejiang A&F University, 2008, 25(2): 228-234.

Citation:

LI Dong-lin, JIN Ya-qin, ZHANG Ji-lin, RUAN Hong-hua. Heavy metal soil pollution in the Qinhuai River riparian zone[J]. Journal of Zhejiang A&F University, 2008, 25(2): 228-234.

Heavy metal soil pollution in the Qinhuai River riparian zone

1.
College of Forest Resource and Environment, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;
2.
Forestry Academy of Jiangsu, Nanjing 211153, Jiangsu, China;
3.
Department of Horticulture, Jinling Institute of Technology, Nanjing 210038, Jiangsu, China

Received Date: 2007-06-28
Rev Recd Date: 2007-09-30
Publish Date: 2008-04-10

Abstract

Qinhuai River is the main river in Nanjing City,the overall length is more than 100 km,having 16 prongs and 2 630 km2 river valley. This objective is to rebuild and protect ecological system of the Qinhuai River riparian zone,pollution levels of five heavy metals(Cd,Zn,Cu,Cr,and Pb) in a riparian zone along the Qinhuai River of Nanjing were analyzed with sample plot method. Five plots were set,including Dongping of Lishui City,Yinxiang and Chalukou of Jiangning District,Dajiaochang of Qinhuai District and Zhongheqiao of Nanjing City,and each plot fell into near-riparian zone(0-30 m near river) and far-riparian zone(5-10 m near river). Results indicated that soil heavy metals in the riparian zone manifested spatial heterogeneity. Soil heavy metal content of the near-riparian zone was much than the far-riparian zone,and for topsoil(0-10 cm in depth) it was much than the subsoil(10-20 cm in depth). In different plots soil heavy metal content was distinctive. Also,in the upper reaches,due to less human interaction,soil heavy metal content was less than the middle and lower reaches.Both Cd and Cr content of the soil in Yinxiang were much than the standard level(Pn > 3.0); so soil pollution was heavy. Soil from Chalukou had an intermediate degree of pollution(Pn > 2.0),and soil came from Daojiaochang was lightly polluted(Pn > 1.0). The pollution index ranking for these five heavy metals in the riparian zone was Cd > Zn > Cu > Cr > Pb. There were positive correlations between soil Cu with Cd(PPPPPPP<0.05).
- soil ecology,
- Qinhuai River,
- riparian zone,
- soil heavy metals,
- pollution analysis and assessment

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Heavy metal soil pollution in the Qinhuai River riparian zone

1. College of Forest Resource and Environment, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;

2. Forestry Academy of Jiangsu, Nanjing 211153, Jiangsu, China;

3. Department of Horticulture, Jinling Institute of Technology, Nanjing 210038, Jiangsu, China

Received Date: 2007-06-28

Rev Recd Date: 2007-09-30

Publish Date: 2008-04-10

Key words:

Abstract: Qinhuai River is the main river in Nanjing City,the overall length is more than 100 km,having 16 prongs and 2 630 km2 river valley. This objective is to rebuild and protect ecological system of the Qinhuai River riparian zone,pollution levels of five heavy metals(Cd,Zn,Cu,Cr,and Pb) in a riparian zone along the Qinhuai River of Nanjing were analyzed with sample plot method. Five plots were set,including Dongping of Lishui City,Yinxiang and Chalukou of Jiangning District,Dajiaochang of Qinhuai District and Zhongheqiao of Nanjing City,and each plot fell into near-riparian zone(0-30 m near river) and far-riparian zone(5-10 m near river). Results indicated that soil heavy metals in the riparian zone manifested spatial heterogeneity. Soil heavy metal content of the near-riparian zone was much than the far-riparian zone,and for topsoil(0-10 cm in depth) it was much than the subsoil(10-20 cm in depth). In different plots soil heavy metal content was distinctive. Also,in the upper reaches,due to less human interaction,soil heavy metal content was less than the middle and lower reaches.Both Cd and Cr content of the soil in Yinxiang were much than the standard level(Pn > 3.0); so soil pollution was heavy. Soil from Chalukou had an intermediate degree of pollution(Pn > 2.0),and soil came from Daojiaochang was lightly polluted(Pn > 1.0). The pollution index ranking for these five heavy metals in the riparian zone was Cd > Zn > Cu > Cr > Pb. There were positive correlations between soil Cu with Cd(PPPPPPP<0.05).

Heavy metal soil pollution in the Qinhuai River riparian zone

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

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