Earth Science Frontiers ›› 2022, Vol. 29 ›› Issue (4): 448-454.DOI: 10.13745/j.esf.sf.2021.11.29
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CHI Minghui1,2(), QIN Yanwen1,2, YANG Chenchen1,2, WEN Quan1,2, SUN Ning1,2, ZHU Huailin1,2, ZHANG Lei1,2,*()
Received:
2021-05-06
Revised:
2021-11-08
Online:
2022-07-25
Published:
2022-07-28
Contact:
ZHANG Lei
CLC Number:
CHI Minghui, QIN Yanwen, YANG Chenchen, WEN Quan, SUN Ning, ZHU Huailin, ZHANG Lei. Distribution and evaluation of nitrogen, phosphorus and organic matter in sediments of the middle reaches of the Chaobai River[J]. Earth Science Frontiers, 2022, 29(4): 448-454.
河流名称 | OM | TN | TP | 数据来源 | |||
---|---|---|---|---|---|---|---|
平均值/% | 范围/(g·kg-1) | 平均值/(g·kg-1) | 范围/(g·kg-1) | 平均值/(g·kg-1) | 范围/(g·kg-1) | ||
潮白河中游 | 5.32 | 0.17~13.15 | 0.192 | 0.005~1.028 | 1.662 | 0.367~4.825 | 本研究 |
海河 | 1.012 | 0.131~4.938 | 0.874 | 0.01~11.42 | 文献[26] | ||
沙溪河 | 1.333 | 0.813~2.038 | 0.54 | 0.25~0.723 | 文献[27] | ||
沂沭河 | 0.18 | 0.01~0.74 | 0.067 | 0.003~0.29 | 0.064 | 0.003~0.247 | 文献[28] |
清潩河 | 4.73 | 1.11~15.76 | 5.557 | 2.14~9.47 | 文献[29] | ||
梁滩河 | 1.8 | 1.25~2.68 | 0.22 | 0.12~0.46 | 文献[30] | ||
抚河 | 1.625 | 0.509~2.575 | 1.85 | 1.04~2.74 | 0.84 | 0.11~1.32 | 文献[31] |
Table 1 Comparisons of OM content, TN or TP in surface sediments between different rivers
河流名称 | OM | TN | TP | 数据来源 | |||
---|---|---|---|---|---|---|---|
平均值/% | 范围/(g·kg-1) | 平均值/(g·kg-1) | 范围/(g·kg-1) | 平均值/(g·kg-1) | 范围/(g·kg-1) | ||
潮白河中游 | 5.32 | 0.17~13.15 | 0.192 | 0.005~1.028 | 1.662 | 0.367~4.825 | 本研究 |
海河 | 1.012 | 0.131~4.938 | 0.874 | 0.01~11.42 | 文献[26] | ||
沙溪河 | 1.333 | 0.813~2.038 | 0.54 | 0.25~0.723 | 文献[27] | ||
沂沭河 | 0.18 | 0.01~0.74 | 0.067 | 0.003~0.29 | 0.064 | 0.003~0.247 | 文献[28] |
清潩河 | 4.73 | 1.11~15.76 | 5.557 | 2.14~9.47 | 文献[29] | ||
梁滩河 | 1.8 | 1.25~2.68 | 0.22 | 0.12~0.46 | 文献[30] | ||
抚河 | 1.625 | 0.509~2.575 | 1.85 | 1.04~2.74 | 0.84 | 0.11~1.32 | 文献[31] |
指标 | OM | TN | TP |
---|---|---|---|
OM | 1 | ||
TN | 0.476** | 1 | |
TP | 0.288** | 0.622** | 1 |
Table 2 Pearson correlation coefficients between OM content, TN and TP in surface sediments of the study area
指标 | OM | TN | TP |
---|---|---|---|
OM | 1 | ||
TN | 0.476** | 1 | |
TP | 0.288** | 0.622** | 1 |
评价标准 | 有机指数范围 | 有机氮范围 | ||||||
---|---|---|---|---|---|---|---|---|
<0.05 | 0.05~<0.20 | 0.20~<0.50 | ≥0.50 | <0.033 | 0.033~<0.066 | 0.066~<0.133 | ≥0.133 | |
类型 | 清洁 | 较清洁 | 尚清洁 | 有机污染 | 清洁 | 较清洁 | 尚清洁 | 有机氮污染 |
等级 | Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅰ | Ⅱ | Ⅲ | Ⅳ |
Table 3 Assessment standards for sediment organic pollution index evaluation
评价标准 | 有机指数范围 | 有机氮范围 | ||||||
---|---|---|---|---|---|---|---|---|
<0.05 | 0.05~<0.20 | 0.20~<0.50 | ≥0.50 | <0.033 | 0.033~<0.066 | 0.066~<0.133 | ≥0.133 | |
类型 | 清洁 | 较清洁 | 尚清洁 | 有机污染 | 清洁 | 较清洁 | 尚清洁 | 有机氮污染 |
等级 | Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅰ | Ⅱ | Ⅲ | Ⅳ |
分区 | 有机指数 | 有机氮 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
最大值 | 最小值 | 平均值 | 类型 | 等级 | 最大值/% | 最小值/% | 平均值/% | 类型 | 等级 | |
A区 | 0.512 | 0.000 41 | 0.068 | 较清洁 | Ⅱ | 0.087 | 0.000 64 | 0.018 | 清洁 | Ⅰ |
B区 | 0.745 | 0.000 97 | 0.081 | 较清洁 | Ⅱ | 0.098 | 0.000 92 | 0.021 | 清洁 | Ⅰ |
C区 | 0.216 | 0.000 13 | 0.069 | 较清洁 | Ⅱ | 0.048 | 0.001 4 | 0.018 | 清洁 | Ⅰ |
D区 | 0.285 | 0.000 50 | 0.063 | 较清洁 | Ⅱ | 0.050 | 0.000 48 | 0.016 | 清洁 | Ⅰ |
研究区 | 0.745 | 0.000 13 | 0.071 | 较清洁 | Ⅱ | 0.098 | 0.000 48 | 0.018 | 清洁 | Ⅰ |
Table 4 Statistical table for organic pollution indexes and organic nitrogen contents in surface sediments of different sections of the study area
分区 | 有机指数 | 有机氮 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
最大值 | 最小值 | 平均值 | 类型 | 等级 | 最大值/% | 最小值/% | 平均值/% | 类型 | 等级 | |
A区 | 0.512 | 0.000 41 | 0.068 | 较清洁 | Ⅱ | 0.087 | 0.000 64 | 0.018 | 清洁 | Ⅰ |
B区 | 0.745 | 0.000 97 | 0.081 | 较清洁 | Ⅱ | 0.098 | 0.000 92 | 0.021 | 清洁 | Ⅰ |
C区 | 0.216 | 0.000 13 | 0.069 | 较清洁 | Ⅱ | 0.048 | 0.001 4 | 0.018 | 清洁 | Ⅰ |
D区 | 0.285 | 0.000 50 | 0.063 | 较清洁 | Ⅱ | 0.050 | 0.000 48 | 0.016 | 清洁 | Ⅰ |
研究区 | 0.745 | 0.000 13 | 0.071 | 较清洁 | Ⅱ | 0.098 | 0.000 48 | 0.018 | 清洁 | Ⅰ |
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