| 原始土壤酶活性与肥力形成实质初探 |
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| 引用本文： | 李勇.原始土壤酶活性与肥力形成实质初探[J].水土保持研究,1987,0(1):29-38. |
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| 作者姓名： | 李勇 |
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| 摘 要： | 本文首次对我国原始土壤的酶活性及其与土壤肥力因素的相关性作了初步研究。结果表明:随着岩生地衣向苔藓、草甸的演替。过氧化氢酶。转化酶、脲酶、蛋白酶、磷酸酶活性逐渐降低，多酚氧化酶活性逐渐升高；转化酶、蛋白酶、磷酸酶和脲酶活性与有机质非常显著相关(10.0
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The Initial Research on Enzyme Activities and Essence of Fertility Formation in Primary Soils |
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| Li Yong.The Initial Research on Enzyme Activities and Essence of Fertility Formation in Primary Soils[J].Research of Soil and Water Conservation,1987,0(1):29-38. |
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| Authors: | Li Yong |
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| Abstract: | This paper discussed the changes of enzyme activities in the process of primary soil formation under the influence of rock-bearing organisms in China.The results obtained are as follows. 1.The occurence of rock-bearing lichen is the crux stage of primary soil genesis and fertility development or evolution.Bryophyta bearing is the stage of development and improvement of primary soil fertility level.Enzyme activities of catalase,invertase,urease,protease,phosphatase decrease and polyphenol oxidase activity increases gradually with the evolution of rockbearing organisms from lichen to bryophyta and primary meadow. 2.The essence of formation and development of the primary soil fertility is synthesis of the biochemical process catalyzed by various enzymes secreted from rock-bearing organisms.The activities of invertase, protease,phosphatase and urease were significantly(P<0.05)or very significantay(p<0.01)correlated with organic matter,significantly with total N.The activities of catalase,invertase,protease and phosphatase were significantly or very significantly or extremely significantly(P<0.001)correlated with available N and availableP respectively.Urease was very significantly correlated with total P. 3.The total activities of catalase,polyphenol oxidase,invertase, protease,urease and phosphatase can be used as important indexes in evaluating primary soil fertility level. |
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