兰州百合在不同生长年限根际与非根际土壤酶活性的变化
Changes of Rhizosphere and Non-Rhizosphere Soil Enzyme Activities of Lilium davidii var. unicolor during Different Growth Years
摘要: 在自然生长条件下，研究了不同生长年限兰州百合根际和非根际土壤酶(蔗糖酶、纤维素酶和脲酶)的活性变化规律。结果表明：在同一生长年限的兰州百合种植地，根际土壤和非根际土壤酶活性的变化规律基本一致，且根际土壤酶活性均高于非根际土壤。随着兰州百合生长年限的增加，纤维素酶活性逐渐升高，而蔗糖酶和脲酶活性先升高后降低。二年生长年限的根际土壤蔗糖酶活性最高，比一年期显著升高了29.5%；比三年期升高了66.4%。三年生长年限的根际土壤纤维素酶活性最高，比一年期显著升高了145%，比二年期显著升高了52.9% (P < 0.05)。二年生长年限的根际土壤脲酶活性最高，比一年期显著升高了46.7%，比三年期显著升高了269.3%。不同生长年限土壤酶相比，蔗糖酶和纤维素酶的根际效应不显著，二年期土壤脲酶的根际效应显著(P < 0.05)。蔗糖酶、纤维素酶和脲酶的平均R/S值均为正。说明兰州百合根际和非根际土壤酶活性明显受生长年限的影响，且具有很强的根际效应。
Abstract: The activities of soil enzymes (sucrase, cellulose, and urease) in the rhizosphere and non-rhizosphere soil of Lilium davidii var. unicolor were studied under natural growth conditions. The results indicate that the changes in enzyme activities in rhizosphere soil and non-rhizosphere soil were basically the same, and the enzyme activities in rhizosphere soil were higher than that in non-rhizosphere soil. With the increase of the growth years, the cellulase activities increased gradually, while the activities of sucrase and urease first increased and then decreased. The activity of sucrase in rhizosphere soil of two years was the highest, which was significantly increased by 29.5% than that of one year. This represents an increase of 66.4% over the triennium. The cellulase activity of rhizosphere soil was the highest in three years, which was significantly increased by 145% compared with that in one year and 52.9% compared with that in the second year (P < 0.05). The activity of urease in rhizosphere soil was the highest in biennial soil, which was significantly in-creased by 46.7% than that of one year, and 269.3% compared with that in three-year soil. The rhizosphere effect of sucrase and cellulase was not significant compared with that of soil enzymes in different growth years, but the rhizosphere effect of soil urease in two years was significant (P < 0.05). The average R/S values of sucrase, cellulose, and urease were all positive. The results showed that the rhizosphere and non-rhizosphere soil enzyme activities of Lilium davidii var. unicolor were significantly affected by the growth years and had a strong rhizosphere effect.
文章引用：赵婧, 张宇, 杨丽英, 宋晓庆, 李雪. 兰州百合在不同生长年限根际与非根际土壤酶活性的变化[J]. 土壤科学, 2022, 10(3): 123-129. https://doi.org/10.12677/HJSS.2022.103016

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