Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (14): 41-47.doi: 10.11924/j.issn.1000-6850.casb2022-0498
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LI Baizhong(), HUANG Daoyou, XU Chao(), ZHU Hanhua, ZHANG Quan
Received:
2022-06-13
Revised:
2022-09-18
Online:
2023-05-09
Published:
2023-05-09
LI Baizhong, HUANG Daoyou, XU Chao, ZHU Hanhua, ZHANG Quan. Comparative Study on Remediation of Slight and Moderate Cadmium Contaminated Paddy Fields by Energy Sorghum (Sorghum bicolor L.)[J]. Chinese Agricultural Science Bulletin, 2023, 39(14): 41-47.
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URL: https://www.casb.org.cn/EN/10.11924/j.issn.1000-6850.casb2022-0498
地点 | pH | 有机质/(g/kg) | 全氮/(g/kg) | 速效氮/(mg/kg) | 有效磷/(mg/kg) | 阳离子交换量/(cmol/kg) | 全Cd/(mg/kg) | 有效Cd/(mg/kg) |
---|---|---|---|---|---|---|---|---|
湘潭县 | 6.9 | 48.3 | 2.21 | 212 | 19.2 | 19.9 | 0.59 | 0.19 |
渌口区 | 6.8 | 54.9 | 2.35 | 213 | 6.9 | 19.9 | 1.89 | 0.47 |
地点 | pH | 有机质/(g/kg) | 全氮/(g/kg) | 速效氮/(mg/kg) | 有效磷/(mg/kg) | 阳离子交换量/(cmol/kg) | 全Cd/(mg/kg) | 有效Cd/(mg/kg) |
---|---|---|---|---|---|---|---|---|
湘潭县 | 6.9 | 48.3 | 2.21 | 212 | 19.2 | 19.9 | 0.59 | 0.19 |
渌口区 | 6.8 | 54.9 | 2.35 | 213 | 6.9 | 19.9 | 1.89 | 0.47 |
污染程度 | 品种编号 | 富集系数 | 转移系数 |
---|---|---|---|
轻度污染 | V1 | 1.53±0.08c | 0.25±0.03c |
V2 | 2.61±0.35b | 0.37±0.09b | |
V3 | 1.73±0.13c | 0.25±0.02c | |
V4 | 3.38±0.41a | 0.68±0.10a | |
V5 | 1.98±0.20c | 0.32±0.02b | |
中度污染 | V1 | 0.82±0.10d | 0.24±0.03d |
V2 | 0.72±0.09d | 0.25±0.02d | |
V3 | 1.22±0.08b | 0.35±0.01b | |
V4 | 1.65±0.10a | 0.43±0.02a | |
V5 | 1.05±0.04c | 0.30±0.01c |
污染程度 | 品种编号 | 富集系数 | 转移系数 |
---|---|---|---|
轻度污染 | V1 | 1.53±0.08c | 0.25±0.03c |
V2 | 2.61±0.35b | 0.37±0.09b | |
V3 | 1.73±0.13c | 0.25±0.02c | |
V4 | 3.38±0.41a | 0.68±0.10a | |
V5 | 1.98±0.20c | 0.32±0.02b | |
中度污染 | V1 | 0.82±0.10d | 0.24±0.03d |
V2 | 0.72±0.09d | 0.25±0.02d | |
V3 | 1.22±0.08b | 0.35±0.01b | |
V4 | 1.65±0.10a | 0.43±0.02a | |
V5 | 1.05±0.04c | 0.30±0.01c |
污染程度 | 品种编号 | 全Cd/(mg/kg) | 有效Cd/(mg/kg) | 全Cd降低率/% | 有效Cd降低率/% |
---|---|---|---|---|---|
轻度污染 | 试验前 | 0.59±0.03a | 0.19±0.03a | ||
V1 | 0.55±0.04a | 0.18±0.02a | 6.78 | 4.66 | |
V2 | 0.55±0.03a | 0.19±0.01a | 6.78 | 1.55 | |
V3 | 0.59±0.02a | 0.18±0.03a | 0.00 | 5.70 | |
V4 | 0.56±0.04a | 0.18±0.02a | 5.08 | 6.22 | |
V5 | 0.59±0.03a | 0.20±0.02a | 0.00 | -4.15 | |
中度污染 | 试验前 | 1.89±0.03a | 0.47±0.03a | ||
V1 | 1.77±0.02bc | 0.44±0.02ab | 6.35 | 6.55 | |
V2 | 1.89±0.03a | 0.48±0.03a | 0.00 | -2.11 | |
V3 | 1.80±0.02b | 0.42±0.01b | 4.76 | 10.78 | |
V4 | 1.79±0.03b | 0.45±0.03ab | 5.29 | 5.71 | |
V5 | 1.74±0.04c | 0.45±0.02ab | 7.94 | 4.86 |
污染程度 | 品种编号 | 全Cd/(mg/kg) | 有效Cd/(mg/kg) | 全Cd降低率/% | 有效Cd降低率/% |
---|---|---|---|---|---|
轻度污染 | 试验前 | 0.59±0.03a | 0.19±0.03a | ||
V1 | 0.55±0.04a | 0.18±0.02a | 6.78 | 4.66 | |
V2 | 0.55±0.03a | 0.19±0.01a | 6.78 | 1.55 | |
V3 | 0.59±0.02a | 0.18±0.03a | 0.00 | 5.70 | |
V4 | 0.56±0.04a | 0.18±0.02a | 5.08 | 6.22 | |
V5 | 0.59±0.03a | 0.20±0.02a | 0.00 | -4.15 | |
中度污染 | 试验前 | 1.89±0.03a | 0.47±0.03a | ||
V1 | 1.77±0.02bc | 0.44±0.02ab | 6.35 | 6.55 | |
V2 | 1.89±0.03a | 0.48±0.03a | 0.00 | -2.11 | |
V3 | 1.80±0.02b | 0.42±0.01b | 4.76 | 10.78 | |
V4 | 1.79±0.03b | 0.45±0.03ab | 5.29 | 5.71 | |
V5 | 1.74±0.04c | 0.45±0.02ab | 7.94 | 4.86 |
指标 | 根Cd含量 | 地上部Cd含量 | 累积量 | 转移系数 | 富集系数 | 土壤全Cd含量 | 土壤有效态Cd含量 |
---|---|---|---|---|---|---|---|
根Cd含量 | 1 | 0.660* | 0.527 | -0.274 | -0.682* | 0.924** | 0.914** |
地上部Cd含量 | 0.660* | 1 | 0.817** | 0.502 | 0.046 | 0.560 | 0.545 |
累积量 | 0.527 | 0.817** | 1 | 0.394 | 0.052 | 0.376 | 0.357 |
转移系数 | -0.274 | 0.502 | 0.394 | 1 | 0.804** | -0.246 | -0.255 |
富集系数 | -0.682* | 0.046 | 0.052 | 0.804** | 1 | -0.745* | -0.746* |
土壤全Cd含量 | 0.924** | 0.560 | 0.376 | -0.246 | -0.745* | 1 | 0.996** |
土壤有效态Cd | 0.914** | 0.545 | 0.357 | -0.255 | -0.746* | 0.996** | 1 |
指标 | 根Cd含量 | 地上部Cd含量 | 累积量 | 转移系数 | 富集系数 | 土壤全Cd含量 | 土壤有效态Cd含量 |
---|---|---|---|---|---|---|---|
根Cd含量 | 1 | 0.660* | 0.527 | -0.274 | -0.682* | 0.924** | 0.914** |
地上部Cd含量 | 0.660* | 1 | 0.817** | 0.502 | 0.046 | 0.560 | 0.545 |
累积量 | 0.527 | 0.817** | 1 | 0.394 | 0.052 | 0.376 | 0.357 |
转移系数 | -0.274 | 0.502 | 0.394 | 1 | 0.804** | -0.246 | -0.255 |
富集系数 | -0.682* | 0.046 | 0.052 | 0.804** | 1 | -0.745* | -0.746* |
土壤全Cd含量 | 0.924** | 0.560 | 0.376 | -0.246 | -0.745* | 1 | 0.996** |
土壤有效态Cd | 0.914** | 0.545 | 0.357 | -0.255 | -0.746* | 0.996** | 1 |
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