| 免耕生态系统中土壤动物对土壤养分影响的研究 |
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| 引用本文： | 黄伦先,沈世华.免耕生态系统中土壤动物对土壤养分影响的研究[J].生态与农村环境学报,1996(4). |
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| 作者姓名： | 黄伦先 沈世华 |
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| 作者单位： | 西南农业大学资源环境学院 |
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| 摘 要： | 对紫色水稻土自然免耕生态系统中土壤动物群落结构的变化及其对土壤养分的影响进行了调查研究。结果表明．水稻土免耕耕作制度有利于土壤动物的生长繁殖．并能改善土壤化学性质。土壤动物平均密度是垄作免耕＞垄作常耕＞平作免耕＞平作常耕。免耕土壤中有效氮、有效磷、有效钾和有机质含量均分别高于常耕土壤。
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| 关 键 词： | 紫色水稻土，免耕，土壤动物，群落结构，土壤养分 |
A Study of the Effects of Soil Animals on Soil Nutrients in Non-tillage Ecosystem |
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| .Huang Lunxian et al.A Study of the Effects of Soil Animals on Soil Nutrients in Non-tillage Ecosystem[J].Journal of Ecology and Rural Environment,1996(4). |
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| Authors: | Huang Lunxian |
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| Abstract: | The differen structures of soil animal communitites and their effects on soil nutrients have been investigated and studied in non-tillage violet soil paddy field ecosystems.The results show that paddy soil non-tillage cropping system is beneficial to the growth and reproduction of soil animals,and is also helpful to the improvement of soil chemical properties.The results also indicate that the average density of soil animal in non-tillage ridge cultured soil is the highest,in conventional tillage ridge cultured soil the second,in non-tillage level cultured soil the third,and in conventional tillage level cultured soil the lowest.The contents of available N,P,K and organic matter in non-tillage soil are all higher than that of in conventional tillage soil. |
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| Keywords: | violet paddy soil non-tillage soil animal community structure soil nutrient |
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