Chin J Plant Ecol ›› 2008, Vol. 32 ›› Issue (1): 168-175.DOI: 10.3773/j.issn.1005-264x.2008.01.019
• Research Articles • Previous Articles Next Articles
LONG Xin-Xian1(), WANG Yan-Hong1,2, LIU Hong-Yan1
Received:
2006-12-05
Accepted:
2007-07-17
Online:
2008-12-05
Published:
2008-01-30
Contact:
LONG Xin-Xian
LONG Xin-Xian, WANG Yan-Hong, LIU Hong-Yan. GROWTH RESPONSE AND UPTAKE DIFFERENCES BETWEEN TWO ECOTYPES OF SEDUM ALFREDII TO SOILS Cd[J]. Chin J Plant Ecol, 2008, 32(1): 168-175.
Cd添加量 Cd added (mg·kg-1 soil) | 干重 Dry biomass(g·pot-1) | Cd含量 Cd concentration(mg·kg-1) | 富集系数 Accumulation factor | |||||||
---|---|---|---|---|---|---|---|---|---|---|
矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | 矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | 矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | |||||
CK | 1.25±0.20bc | 1.85±0.36ab | 5.63±0.29f | 1.18±0.11d | 170.61 | 35.76 | ||||
12.5 | 1.77±0.05abc | 1.23±0.16bc | 538.7±47.0e | 117.7±12.2bc | 42.98 | 9.39 | ||||
25 | 1.32±0.12bc | 1.62±0.46abc | 676.2±37.8de | 127.2±28.3b | 27.01 | 5.08 | ||||
50 | 1.08±0.10bcd | 1.09±0.16bcd | 753.0 ±22.4d | 178.4±10.6b | 15.05 | 3.57 | ||||
100 | 1.74±0.53abc | 1.04±0.15cd | 903.5±17.7c | 177.2±5.5a | 9.03 | 1.77 | ||||
200 | 1.68±0.27abc | 0.43±0.09de | 1550 ±80.0b | 182.1±5.6a | 7.75 | 0.91 | ||||
300 | 2.11±0.31a | 0.21±0.04e | 1632±115.8b | 178.2±6.7a | 5.44 | 0.59 | ||||
400 | 1.81±0.14abc | 0.18±0.07e | 2763 ±95.8a | 108.9±5.3c | 6.91 | 0.27 |
Table 1 Dry biomass and Cd accumulation in shoots of two different ecotype of Sedum alfredii at the first harvest
Cd添加量 Cd added (mg·kg-1 soil) | 干重 Dry biomass(g·pot-1) | Cd含量 Cd concentration(mg·kg-1) | 富集系数 Accumulation factor | |||||||
---|---|---|---|---|---|---|---|---|---|---|
矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | 矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | 矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | |||||
CK | 1.25±0.20bc | 1.85±0.36ab | 5.63±0.29f | 1.18±0.11d | 170.61 | 35.76 | ||||
12.5 | 1.77±0.05abc | 1.23±0.16bc | 538.7±47.0e | 117.7±12.2bc | 42.98 | 9.39 | ||||
25 | 1.32±0.12bc | 1.62±0.46abc | 676.2±37.8de | 127.2±28.3b | 27.01 | 5.08 | ||||
50 | 1.08±0.10bcd | 1.09±0.16bcd | 753.0 ±22.4d | 178.4±10.6b | 15.05 | 3.57 | ||||
100 | 1.74±0.53abc | 1.04±0.15cd | 903.5±17.7c | 177.2±5.5a | 9.03 | 1.77 | ||||
200 | 1.68±0.27abc | 0.43±0.09de | 1550 ±80.0b | 182.1±5.6a | 7.75 | 0.91 | ||||
300 | 2.11±0.31a | 0.21±0.04e | 1632±115.8b | 178.2±6.7a | 5.44 | 0.59 | ||||
400 | 1.81±0.14abc | 0.18±0.07e | 2763 ±95.8a | 108.9±5.3c | 6.91 | 0.27 |
Cd处理 (mg·kg-1) | 地上部 Shoot | 根系 Root | ||||
---|---|---|---|---|---|---|
矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | 矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | |||
CK | 2.42±0.73a | 2.37±0.12a | 0.176±0.08a | 0.182±0.03a | ||
12.5 | 2.12±0.22ab | 1.38±0.49bc | 0.135±0.05ab | 0.120±0.06b | ||
25 | 2.45±0.43a | 1.13±0.36bc | 0.122±0.04ab | 0.101±0.05bc | ||
50 | 1.98±0.26ab | 0.86±0.62cd | 0.087±0.04b | 0.064±0.03cd | ||
100 | 2.41±0.42ab | 1.69±0.34b | 0.109±0.04ab | 0.081±0.02bcd | ||
200 | 2.07±0.23ab | 0.93±0.29c | 0.146±0.03ab | 0.028±0.01d | ||
300 | 1.80±0.21b | - | 0.107±0.05ab | - | ||
400 | 2.20±0.53ab | - | 0.133±0.06ab | - |
Table 2 Dry biomass of shoots and roots of two different ecotype of Sedum alfredii at the second harvest (g·pot-1)
Cd处理 (mg·kg-1) | 地上部 Shoot | 根系 Root | ||||
---|---|---|---|---|---|---|
矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | 矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | |||
CK | 2.42±0.73a | 2.37±0.12a | 0.176±0.08a | 0.182±0.03a | ||
12.5 | 2.12±0.22ab | 1.38±0.49bc | 0.135±0.05ab | 0.120±0.06b | ||
25 | 2.45±0.43a | 1.13±0.36bc | 0.122±0.04ab | 0.101±0.05bc | ||
50 | 1.98±0.26ab | 0.86±0.62cd | 0.087±0.04b | 0.064±0.03cd | ||
100 | 2.41±0.42ab | 1.69±0.34b | 0.109±0.04ab | 0.081±0.02bcd | ||
200 | 2.07±0.23ab | 0.93±0.29c | 0.146±0.03ab | 0.028±0.01d | ||
300 | 1.80±0.21b | - | 0.107±0.05ab | - | ||
400 | 2.20±0.53ab | - | 0.133±0.06ab | - |
Fig.2 Cd concentration in shoots and roots of two different ecotype of Sedum alfredii at the second harvest Bars denote means and standard errors of four replicates. Different letters show the significant difference (p>0.05)
土壤Cd添加量 Cd added to soils (mg·kg-1) | 土壤总Cd量(A) Total soil Cd content (mg·pot-1) | 地上部Cd积累量 Cd accumulation in shoots (mg·pot-1) | B/A×100 | ||
---|---|---|---|---|---|
第一茬(B1) At first harvest | 第二茬(B2) At second harvest | B1+B2 (B) | |||
矿山生态型 Mining ecotype | |||||
12.5 | 6.27 | 0.95±0.10 | 1.09±0.12 | 2.04±0.08 | 32.68 |
25 | 12.52 | 0.89±0.05 | 1.75±0.40 | 2.64±0.44 | 21.15 |
50 | 25.02 | 0.81±0.24 | 3.15±0.97 | 3.96±1.07 | 15.83 |
100 | 50.02 | 1.57±0.45 | 3.14±0.81 | 6.10±1.21 | 9.43 |
200 | 100.02 | 2.60±0.35 | 3.62±0.50 | 6.22±0.74 | 6.22 |
300 | 150.02 | 3.44±0.54 | 4.05±0.47 | 7.49±0.56 | 4.99 |
400 | 200.02 | 5.00±0.47 | 6.41±1.43 | 11.41±1.15 | 5.71 |
非矿山生态型 non-mining ecotype | |||||
12.5 | 6.27 | 0.145±0.02 | 0.025±0.01 | 0.170±0.03 | 2.71 |
25 | 12.52 | 0.206±0.04 | 0.021±0.02 | 0.227±0.05 | 1.84 |
50 | 25.02 | 0.194±0.02 | 0.061±0.02 | 0.255±0.02 | 1.02 |
100 | 50.02 | 0.184±0.02 | 0.103±0.01 | 0.288±0.03 | 0.58 |
200 | 100.02 | 0.078±0.02 | 0.182±0.09 | 0.260±0.10 | 0.26 |
300 | 150.02 | 0.037±0.01 | 0.037±0.01 | 0.02 | |
400 | 200.02 | 0.020±0.00 | - | 0.020±0.00 | 0.01 |
Table 3 Total soil Cd content and Cd accumulation in shoots of the two different ecotype of Sedum alfredii (mg·pot-1)
土壤Cd添加量 Cd added to soils (mg·kg-1) | 土壤总Cd量(A) Total soil Cd content (mg·pot-1) | 地上部Cd积累量 Cd accumulation in shoots (mg·pot-1) | B/A×100 | ||
---|---|---|---|---|---|
第一茬(B1) At first harvest | 第二茬(B2) At second harvest | B1+B2 (B) | |||
矿山生态型 Mining ecotype | |||||
12.5 | 6.27 | 0.95±0.10 | 1.09±0.12 | 2.04±0.08 | 32.68 |
25 | 12.52 | 0.89±0.05 | 1.75±0.40 | 2.64±0.44 | 21.15 |
50 | 25.02 | 0.81±0.24 | 3.15±0.97 | 3.96±1.07 | 15.83 |
100 | 50.02 | 1.57±0.45 | 3.14±0.81 | 6.10±1.21 | 9.43 |
200 | 100.02 | 2.60±0.35 | 3.62±0.50 | 6.22±0.74 | 6.22 |
300 | 150.02 | 3.44±0.54 | 4.05±0.47 | 7.49±0.56 | 4.99 |
400 | 200.02 | 5.00±0.47 | 6.41±1.43 | 11.41±1.15 | 5.71 |
非矿山生态型 non-mining ecotype | |||||
12.5 | 6.27 | 0.145±0.02 | 0.025±0.01 | 0.170±0.03 | 2.71 |
25 | 12.52 | 0.206±0.04 | 0.021±0.02 | 0.227±0.05 | 1.84 |
50 | 25.02 | 0.194±0.02 | 0.061±0.02 | 0.255±0.02 | 1.02 |
100 | 50.02 | 0.184±0.02 | 0.103±0.01 | 0.288±0.03 | 0.58 |
200 | 100.02 | 0.078±0.02 | 0.182±0.09 | 0.260±0.10 | 0.26 |
300 | 150.02 | 0.037±0.01 | 0.037±0.01 | 0.02 | |
400 | 200.02 | 0.020±0.00 | - | 0.020±0.00 | 0.01 |
生态型 Ecotype | 土壤Cd添加量 Cd added to soils (mg·kg-1) | 种植前 Before planting | 第一茬 At first harvest | 第二茬 At second harvest |
---|---|---|---|---|
矿山生态型 Mining ecotype | CK | 0.100±0.00a | 0.001±0.00b | 0.002±0.00b |
12.5 | 3.20±0.08a | 1.73±0.02b | 0.97±0.03c | |
25 | 6.70±0.20a | 4.76±0.09b | 3.39±0.18c | |
50 | 16.61±0.74a | 11.58±0.29b | 8.85±0.36c | |
100 | 34.62±1.05a | 28.41±0.94b | 22.76±0.51c | |
200 | 85.20±2.97a | 59.01±3.06b | 56.69±2.07b | |
300 | 136.1±2.62a | 104.1±3.25b | 95.39±0.98c | |
400 | 195.3±2.20a | 151.4±7.59b | 134.5±3.31c | |
非矿山生态型 Non-mining ecotype | CK | 0.100±0.00a | 0.065±0.00b | 0.05±0.00c |
12.5 | 3.20±0.08a | 2.37±0.04b | 2.33±0.05b | |
25 | 6.70±0.20a | 5.20±0.15b | 4.96±0.19b | |
50 | 16.61±0.74a | 12.39±0.70b | 12.52±0.51b | |
100 | 34.62±1.05a | 26.53±1.23b | 27.65±0.83b | |
200 | 85.20±2.97a | 65.00±2.98b | 59.95±3.38b | |
300 | 136.1±2.62a | 109.0±2.77b | 101.2±2.63c | |
400 | 195.3±2.20a | 156.9±6.68b | 151.7±10.83b |
Table 4 Concentration of ammonium acetate-extractable Cd (NH4OAc-Cd) in soils before and after plantings Sedum alfredii (mg·kg-1)
生态型 Ecotype | 土壤Cd添加量 Cd added to soils (mg·kg-1) | 种植前 Before planting | 第一茬 At first harvest | 第二茬 At second harvest |
---|---|---|---|---|
矿山生态型 Mining ecotype | CK | 0.100±0.00a | 0.001±0.00b | 0.002±0.00b |
12.5 | 3.20±0.08a | 1.73±0.02b | 0.97±0.03c | |
25 | 6.70±0.20a | 4.76±0.09b | 3.39±0.18c | |
50 | 16.61±0.74a | 11.58±0.29b | 8.85±0.36c | |
100 | 34.62±1.05a | 28.41±0.94b | 22.76±0.51c | |
200 | 85.20±2.97a | 59.01±3.06b | 56.69±2.07b | |
300 | 136.1±2.62a | 104.1±3.25b | 95.39±0.98c | |
400 | 195.3±2.20a | 151.4±7.59b | 134.5±3.31c | |
非矿山生态型 Non-mining ecotype | CK | 0.100±0.00a | 0.065±0.00b | 0.05±0.00c |
12.5 | 3.20±0.08a | 2.37±0.04b | 2.33±0.05b | |
25 | 6.70±0.20a | 5.20±0.15b | 4.96±0.19b | |
50 | 16.61±0.74a | 12.39±0.70b | 12.52±0.51b | |
100 | 34.62±1.05a | 26.53±1.23b | 27.65±0.83b | |
200 | 85.20±2.97a | 65.00±2.98b | 59.95±3.38b | |
300 | 136.1±2.62a | 109.0±2.77b | 101.2±2.63c | |
400 | 195.3±2.20a | 156.9±6.68b | 151.7±10.83b |
土壤Cd添加量 Cd added to soils (mg·kg-1) | 矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | |||||
---|---|---|---|---|---|---|---|
第一茬 At first harvest | 第二茬 At second harvest | 第一茬 At first harvest | 第二茬 At second harvest | ||||
0 | 0.001±0.00b | 0.002±0.00a | 0.000±0.00c | 0.001±0.00b | |||
12.5 | 0.051±0.01b | 0.036±0.01b | 0.046±0.00b | 0.079±0.01a | |||
25 | 0.125±0.01ab | 0.119±0.03b | 0.104±0.01b | 0.161±0.04a | |||
50 | 0.239±0.03c | 0.324±0.04ab | 0.312±0.04b | 0.369±0.02a | |||
100 | 0.682±0.07b | 0.638±0.10b | 1.048±0.10a | 0.728±0.08b | |||
200 | 1.822±0.22b | 1.658±0.39b | 3.822±0.30a | 1.588±0.25b | |||
300 | 3.292±0.21b | 2.634±0.22c | 4.618±0.42a | 2.740±0.23c | |||
400 | 4.009±0.52b | 3.562±0.47b | 5.363±0.55a | 4.253±0.77b |
Table 5 Changes in the concentration of water-extractable Cd (H2O-Cd) in soils (mg·kg-1)
土壤Cd添加量 Cd added to soils (mg·kg-1) | 矿山生态型 Mining ecotype | 非矿山生态型 Non-mining ecotype | |||||
---|---|---|---|---|---|---|---|
第一茬 At first harvest | 第二茬 At second harvest | 第一茬 At first harvest | 第二茬 At second harvest | ||||
0 | 0.001±0.00b | 0.002±0.00a | 0.000±0.00c | 0.001±0.00b | |||
12.5 | 0.051±0.01b | 0.036±0.01b | 0.046±0.00b | 0.079±0.01a | |||
25 | 0.125±0.01ab | 0.119±0.03b | 0.104±0.01b | 0.161±0.04a | |||
50 | 0.239±0.03c | 0.324±0.04ab | 0.312±0.04b | 0.369±0.02a | |||
100 | 0.682±0.07b | 0.638±0.10b | 1.048±0.10a | 0.728±0.08b | |||
200 | 1.822±0.22b | 1.658±0.39b | 3.822±0.30a | 1.588±0.25b | |||
300 | 3.292±0.21b | 2.634±0.22c | 4.618±0.42a | 2.740±0.23c | |||
400 | 4.009±0.52b | 3.562±0.47b | 5.363±0.55a | 4.253±0.77b |
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