| 施肥对I-107杨树人工林土壤根际效应的影响 |
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| 引用本文： | 孔令刚,刘福德,王华田,姜岳忠,董玉峰,焦绪娟.施肥对I-107杨树人工林土壤根际效应的影响[J].中国水土保持科学,2006,4(5):60-65. |
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| 作者姓名： | 孔令刚 刘福德 王华田 姜岳忠 董玉峰 焦绪娟 |
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| 作者单位： | 1. 山东农业大学林学院,271018,山东泰安
2. 山东省林业科学研究院,251000,济南 |
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| 摘 要： | 通过研究施用有机肥、化学肥料和生物菌肥对I-107杨树人工林根际和非根际土壤微生物数量和土壤酶活性的影响,分析土壤酶活性与土壤微生物数量的关系。研究结果表明:不同种类肥料使用后3个月,林地根际土壤和非根际土壤微生物总量均有显著增长,其中有机肥处理土壤微生物数量增长幅度最大,菌肥处理最小。施肥处理显著提高土壤脲酶、碱性磷酸酶、过氧化氢酶、过氧化物酶活性,但尿素和菌肥处理土壤多酚氧化酶活性降低。施用有机肥处理对土壤微生物和土壤酶根际效应值影响最明显,菌肥处理影响最小。尿素处理土壤pH值高于对照,有机肥和菌肥处理小于对照,但不同处理间土壤pH值的根际效应值差异性不明显。土壤微生物数量与土壤酶活性之间存在一定的相关性,其中:土壤脲酶活性与好气性纤维素分解菌之间、土壤碱性磷酸酶活性与氨化细菌、真菌、放线菌、亚硝酸细菌之间,土壤过氧化氢酶与好气性纤维素分解菌、真菌、放线菌之间相关性显著。
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| 关 键 词： | 杨树人工林 土壤微生物 土壤酶 根际效应 |
| 收稿时间： | 2006-04-08 |
| 修稿时间： | 2006-08-05 |
Effect of fertilization on soil microflora and enzyme rhizosphere effect in poplar forestland |
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| Kong Linggang,Liu Fude,Wang Huatian,Jiang Yuezhong,Dong Yufeng,Jiao Xujuan.Effect of fertilization on soil microflora and enzyme rhizosphere effect in poplar forestland[J].Science of Soil and Water Conservation,2006,4(5):60-65. |
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| Authors: | Kong Linggang Liu Fude Wang Huatian Jiang Yuezhong Dong Yufeng Jiao Xujuan |
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| Institution: | 1. Forestry College of Shandong Agricultural University, 271018, Taian, Shandong; 2. Shandong Academy of Forestry, 251000, Jinan, China |
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| Abstract: | Effect of fertilization on soil microfiora mass and soil enzyme activity between rhizosphere and non-rhizosphere space in I-107 poplar forestland was studied, and the correlation between soil enzyme activity and soil microflora was analyzed. Results showed that, fertilization treatment increased both rhizosphere and non-rhizosphere total soil microflora amount significantly, compared with CK. Amount of soil microflora in organic fertilizer treatment was more than urea treatment and biological fungus fertilizer treatment. Activity of soil urease, alkaline phosphatase, catalase, peroxidase all increased significantly in every fertilization treatment, but activity of polyphenol oxidase in urea and biological fungus fertilizer treatment decreased. Soil enzyme and microflora rhizosphere effect of urea fertilizer treatment and biological fungus fertilizer treatment was less than organic fertilizer treatment. Soil pH value of urea fertilizer treatment was more than CK, and that of biological fungus and organic fertilizer treatment was less than CK. Rhizosphere effect value of soil pH in different treatment had no difference. Correlation between soil urease activity and cellulose decomposing bacterium, soil alkaline phosphatase activity and ammonificator, fungi, actinomyces, nitrosotying bacteria, soil catalase and cellulose decomposing bacterium, fungi, actinomyces was significant at 0.05 levels. |
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| Keywords: | poplar plantation soil microflora soil enzyme rhizosphere effect |
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