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外源镧的吸附对红壤阳离子交换量和溶液组成的影响

DOI: 10.7685/j.issn.1000-2030.2000.02.015, PP. 61-64

Keywords: ,吸附,阳离子代换量,溶液组成,红壤

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Abstract:

采用不同用量外源稀土镧,研究其在红壤上的吸附及对红壤阳离子交换量和溶液组成的影响。结果表明,红壤对La3+具有较大的吸附容量和具有较高的可解吸性。当外源La3+浓度小于400mg/kg时,被吸附的La3+具有较高的非交换性。阳离子交换量受外源镧的影响不显著;当外源镧浓度大于300mg/kg时,土壤盐基饱和度与有效阳离子交换量显著降低,而交换性酸和交换性铝显著增加。浸出液中的盐基离子浓度随外源镧浓度提高而增加,且当外源镧浓度大于50mg/kg时呈极显著差异

References

[1]  叶奕秀,潘国良,高芹.稀土农用的效果及推广中应注意的问题[J].稀土.1995,16(5):64-67
[2]  刘洪章,李亚东,郝瑞.稀土对黑德醋栗若干生理效应的的影响[J].中国稀土学报.1995,13(9):283-285
[3]  Derome J,Lindroos A J.Effects of heavy metal contamination on macronutrient availability and acidification parameters in forest soil in the vicinity of the Harjavalta Cu-Ni smelter[J].Environmental Pollution.1998,99(2):225-232
[4]  Kochian L V.Cellular mechanism of aluminum toxicity and resistance in plants[J].Annual Review of Plant Physiology and Plant Molecular Biology.1995,46:237-260
[5]  潘登魁,郭春绒.LaCl3对油粉种子萌发过程酯酶同工酶的影响[J].稀土.1996,17(2):70-72
[6]  中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科学技术出版社.1978:593
[7]  Gillman G P,Sumner M E.Surface charge characterization and soil solution composition of four soils from the Southern Piedmont in Geofgia[J].Soil Science Society of America Journal.1987,51:589-594
[8]  Zheng S J,Ma J F,Matstumoto H.High aluminum resistance in buchwheat[J].Plant Physiology.1998,117:745-751

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