| 不同耕作方式对稻田土壤动物、微生物及酶活性的影响研究 |
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| 引用本文： | 高明,周保同,魏朝富,谢德体,张磊.不同耕作方式对稻田土壤动物、微生物及酶活性的影响研究[J].应用生态学报,2004,15(7):1177-1181. |
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| 作者姓名： | 高明 周保同 魏朝富 谢德体 张磊 |
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| 作者单位： | 1. 西南农业大学资源环境学院,重庆,400716
2. 西南师范大学资源环境学院,重庆,400716 |
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| 基金项目： | 国家自然科学基金重点资助项目 ( 4 0 2 3 10 16) |
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| 摘 要： | 以长期定位试验为基本材料，研究了不同耕作方式对土壤动物、微生物及酶活性的影响．结果表明，0～20cm土壤层内大、中、小型土壤动物垄作免耕为14700个·m^-22，冬水免耕为10450个·m^-22水旱轮作为7950个·m^-22常规平作为6275个·m^-22，垄作免耕处理土壤动物的数量是常规平作的2．34倍．土壤微生物数量和土壤微生物生物量氮因季节而异，总体上是春秋多而夏季少,土壤酶活性表现出表层高，底层低．土壤微生物数量、土壤微生物生物量氮及土壤酶活性不同处理间仍是垄作免耕>水旱轮作>冬水免耕>常规平作，表明垄作免耕有利于改善稻田土壤生态环境。有利于土壤肥力的提高。
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| 关 键 词： | 耕作方式 稻田 垄作免耕 土壤动物 土壤微生物 土壤酶活性 |
| 文章编号： | 1001-9332(2004)07-1177-05 |
| 修稿时间： | 2003年6月9日 |
Effect of tillage system on soil animal,microorganism and enzyme activity in paddy field |
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| GAO Ming,ZHOU Baotong,WEI Chaofu,XIE Deti,ZHANG Lei.Effect of tillage system on soil animal,microorganism and enzyme activity in paddy field[J].Chinese Journal of Applied Ecology,2004,15(7):1177-1181. |
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| Authors: | GAO Ming ZHOU Baotong WEI Chaofu XIE Deti ZHANG Lei |
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| Affiliation: | College of Resource and Environment, Southwest Agricultural University, Chongqing 400716, China. gaoming@swau.cq.cn |
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| Abstract: | A long-term experiment showed that under ridge-no-tillage, the amount of soil animal in 0 - 20 cm layer was 14700 ind. x m(-2), while under no-tillage and fallow in winter, paddy-upland rotation, and conventional tillage, it was 10450, 7950 and 6275 ind. x m(-2), respectively. Soil microbial biomass and microbial biomass N were more in spring and autumn, and less in summer. Soil enzyme activity was higher in surface soil layer and lower in bottom soil layer. The amount of soil animal, microbial biomass and microbial biomass N and soil enzyme activity was in order of ridge-no-tillage > paddy-upland rotation > no-tillage and fallow in winter > conventional tillage. The results also indicated that ridge-no-tillage was advantageous to improve soil ecological environment and soil fertility in paddy field. |
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| Keywords: | Tillage system Paddy field Ridge-no-tillage Soil animal Soil microorganism Soil enzyme activity |
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