Xinjiang Agricultural Sciences ›› 2022, Vol. 59 ›› Issue (8): 2033-2040.DOI: 10.6048/j.issn.1001-4330.2022.08.025
• Plant Protection·Agricultural Product Analysis and Detection·Agricultural Equipment Engineering and Mechanization • Previous Articles Next Articles
LIU Guohong1(), LENG Bingbing2(
), BIAN Qingyong3, WEI Yayuan3, WANG Zhiguo4
Received:
2021-11-03
Online:
2022-08-20
Published:
2022-10-01
Correspondence author:
LENG Bingbing
Supported by:
刘国宏1(), 冷冰冰2(
), 扁青永3, 魏亚媛3, 王治国4
通讯作者:
冷冰冰
作者简介:
刘国宏(1979-),男,新疆奇台人,副研究员,研究方向为土壤耕作与水肥高效利用,(E-mail) lghdjs@163.com
基金资助:
CLC Number:
LIU Guohong, LENG Bingbing, BIAN Qingyong, WEI Yayuan, WANG Zhiguo. Characteristics and Risk Assessment of Heavy Metals As and Cd in Typical Soils in Xinjiang[J]. Xinjiang Agricultural Sciences, 2022, 59(8): 2033-2040.
刘国宏, 冷冰冰, 扁青永, 魏亚媛, 王治国. 新疆典型区域土壤重金属As和Cd分布特征及评价[J]. 新疆农业科学, 2022, 59(8): 2033-2040.
指数 Index | 范围 Range | 污染水平 Pollution level |
---|---|---|
单因子污染指数 | Pi≤0.7 | 清洁 |
Single factor pollution index( Pi) | 0.7<Pi≤1.0 | 尚清洁 |
Pi>1.0 | 超标 | |
综合污染指数 | Px≤0.7 | 清洁 |
Comprehensive | 0.7<Px≤1.0 | 尚清洁 |
Pollution index(Px) | Px>1.0 | 超标 |
Table 1 The grading of soil pollution indexes
指数 Index | 范围 Range | 污染水平 Pollution level |
---|---|---|
单因子污染指数 | Pi≤0.7 | 清洁 |
Single factor pollution index( Pi) | 0.7<Pi≤1.0 | 尚清洁 |
Pi>1.0 | 超标 | |
综合污染指数 | Px≤0.7 | 清洁 |
Comprehensive | 0.7<Px≤1.0 | 尚清洁 |
Pollution index(Px) | Px>1.0 | 超标 |
潜在生态 风险系数 Potential ecological risk coefficient | 单因子生态危险指数 Single factor ecological risk | 潜在生态风险指数 Potential ecological risk index(RI) | 潜在生态危害程度 Potential ecological damage degree |
---|---|---|---|
| 低 | RI<150 | 低 |
40≤ | 中 | 150≤RI<300 | 中 |
80≤ | 高 | 300≤RI<600 | 高 |
160≤ | 重 | 600≤RI | 重 |
320≤ | 严重 |
Table 2 Assessment standards of potential ecological risk coefficient(Eir)and risk indices(RI) of heavy metals
潜在生态 风险系数 Potential ecological risk coefficient | 单因子生态危险指数 Single factor ecological risk | 潜在生态风险指数 Potential ecological risk index(RI) | 潜在生态危害程度 Potential ecological damage degree |
---|---|---|---|
| 低 | RI<150 | 低 |
40≤ | 中 | 150≤RI<300 | 中 |
80≤ | 高 | 300≤RI<600 | 高 |
160≤ | 重 | 600≤RI | 重 |
320≤ | 严重 |
项目item | As | Cd |
---|---|---|
平均值Mean | 8.75 | 0.08 |
范围值Range | 7.43~9.71 | 0.02~0.12 |
标准差Standard deviation | 0.84 | 0.01 |
变异系数%coefficient of variation | 9.6 | 8.7 |
背景值background value | 11.20 | 0.12 |
比值Ratio | 0.78 | 0.66 |
Table 3 Soil heavy metal content in the Sixty Household Township s of Urumqi County( mg / kg )
项目item | As | Cd |
---|---|---|
平均值Mean | 8.75 | 0.08 |
范围值Range | 7.43~9.71 | 0.02~0.12 |
标准差Standard deviation | 0.84 | 0.01 |
变异系数%coefficient of variation | 9.6 | 8.7 |
背景值background value | 11.20 | 0.12 |
比值Ratio | 0.78 | 0.66 |
采样样点 Sampling Sample points | 食用农产品产地环境质量评价标准 Environmental Quality Requirements for Green Food Soil | ||
---|---|---|---|
单因子污染指数Pi Single factor pollution index Pi | 综合污染指数Px Comprehensive pollution index Px | ||
As | Cd | ||
1 | 0.45 | 0.40 | 0.44 |
2 | 0.42 | 0.40 | 0.42 |
3 | 0.48 | 0.40 | 0.46 |
4 | 0.49 | 0.48 | 0.48 |
5 | 0.42 | 0.45 | 0.44 |
6 | 0.37 | 0.43 | 0.41 |
平均值Mean | 0.44 | 0.43 | 0.44 |
Table 4 The grading of soil pollution indexes
采样样点 Sampling Sample points | 食用农产品产地环境质量评价标准 Environmental Quality Requirements for Green Food Soil | ||
---|---|---|---|
单因子污染指数Pi Single factor pollution index Pi | 综合污染指数Px Comprehensive pollution index Px | ||
As | Cd | ||
1 | 0.45 | 0.40 | 0.44 |
2 | 0.42 | 0.40 | 0.42 |
3 | 0.48 | 0.40 | 0.46 |
4 | 0.49 | 0.48 | 0.48 |
5 | 0.42 | 0.45 | 0.44 |
6 | 0.37 | 0.43 | 0.41 |
平均值Mean | 0.44 | 0.43 | 0.44 |
样区编码 Sample codes | 单因子潜在生态风险系数 Potential ecological risk coefficient of single factor( | 综合潜在生态风险指数 RIPotential ecological risk coefficient of comprehensive pollution index(RI) | |
---|---|---|---|
As | Cd | ||
1 | 8.03 | 40.00 | 48.03 |
2 | 7.53 | 40.00 | 47.53 |
3 | 8.50 | 40.00 | 48.50 |
4 | 8.67 | 47.50 | 56.17 |
5 | 7.52 | 45.00 | 52.52 |
6 | 6.63 | 42.50 | 49.13 |
平均值Mean | 7.81 | 42.50 | 50.31 |
Table 5 Potential ecological risk coefficients(E r i) and risk indices(RI) of heavy metals
样区编码 Sample codes | 单因子潜在生态风险系数 Potential ecological risk coefficient of single factor( | 综合潜在生态风险指数 RIPotential ecological risk coefficient of comprehensive pollution index(RI) | |
---|---|---|---|
As | Cd | ||
1 | 8.03 | 40.00 | 48.03 |
2 | 7.53 | 40.00 | 47.53 |
3 | 8.50 | 40.00 | 48.50 |
4 | 8.67 | 47.50 | 56.17 |
5 | 7.52 | 45.00 | 52.52 |
6 | 6.63 | 42.50 | 49.13 |
平均值Mean | 7.81 | 42.50 | 50.31 |
项目Item | As | Cd |
---|---|---|
平均值Mean | 21.39 | 0.11 |
范围值Range | 8.25~80.00 | 0.1~0.24 |
标准差Standard deviation | 4.23 | 0.04 |
变异系数%coefficient of variation | 19.78 | 26.67 |
背景值background value | 11.20 | 0.12 |
比值Ratio | 1.91 | 0.92 |
Table 6 Soil heavy metals contents of each survey point
项目Item | As | Cd |
---|---|---|
平均值Mean | 21.39 | 0.11 |
范围值Range | 8.25~80.00 | 0.1~0.24 |
标准差Standard deviation | 4.23 | 0.04 |
变异系数%coefficient of variation | 19.78 | 26.67 |
背景值background value | 11.20 | 0.12 |
比值Ratio | 1.91 | 0.92 |
样点编码 Sample point coding | 单因子污染指数 Pi Single factor pollution index(Pi) | 综合污染指数 Px Comprehensive Pollution index(Px) | |
---|---|---|---|
As | Cd | ||
1 | 0.68 | 0.42 | 0.39 |
2 | 0.70 | 0.53 | 0.32 |
3 | 0.74 | 0.44 | 0.42 |
4 | 0.49 | 0.49 | 0.35 |
5 | 0.44 | 0.41 | 0.30 |
6 | 0.62 | 0.61 | 0.44 |
平均值Mean | 0.61 | 0.48 | 0.37 |
Table 7 The grading of soil pollution indexes
样点编码 Sample point coding | 单因子污染指数 Pi Single factor pollution index(Pi) | 综合污染指数 Px Comprehensive Pollution index(Px) | |
---|---|---|---|
As | Cd | ||
1 | 0.68 | 0.42 | 0.39 |
2 | 0.70 | 0.53 | 0.32 |
3 | 0.74 | 0.44 | 0.42 |
4 | 0.49 | 0.49 | 0.35 |
5 | 0.44 | 0.41 | 0.30 |
6 | 0.62 | 0.61 | 0.44 |
平均值Mean | 0.61 | 0.48 | 0.37 |
样区编码 Sample codes | 单因子潜在生态风险系数 Potential ecological risk coefficient of single factor( | 综合潜在生态风险指数 RI Potential ecological risk coefficient of comprehensive pollution index(RI) | |
---|---|---|---|
As | Cd | ||
1 | 1.52 | 1.06 | 46.85 |
2 | 7.14 | 1.33 | 111.43 |
3 | 1.66 | 1.10 | 49.71 |
4 | 1.09 | 1.23 | 47.65 |
5 | 0.99 | 1.03 | 40.88 |
6 | 1.38 | 1.53 | 59.68 |
平均值Mean | 2.30 | 1.21 | 22.96 |
Table 8 Potential ecological risk coefficients(E r i) and risk indices(RI) of heavy metals
样区编码 Sample codes | 单因子潜在生态风险系数 Potential ecological risk coefficient of single factor( | 综合潜在生态风险指数 RI Potential ecological risk coefficient of comprehensive pollution index(RI) | |
---|---|---|---|
As | Cd | ||
1 | 1.52 | 1.06 | 46.85 |
2 | 7.14 | 1.33 | 111.43 |
3 | 1.66 | 1.10 | 49.71 |
4 | 1.09 | 1.23 | 47.65 |
5 | 0.99 | 1.03 | 40.88 |
6 | 1.38 | 1.53 | 59.68 |
平均值Mean | 2.30 | 1.21 | 22.96 |
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