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选取5种植被恢复模式,研究了不同模式对土壤酶活性的影响以及土壤肥力与土壤酶活性的关系。结果表明,植被恢复后土壤蔗糖酶、过氧化氢酶和碱性磷酸酶活性相比光板地都有明显提高,顺序依次为酸角>小桐子>印楝;同种植被的土壤酶活性表现出根际大于非根际的特性;不同的植被恢复模式和种植方式对酶活性都有较大的影响,等高垄沟模式具有较好的保土保肥能力,创造了良好的微生物环境,增强了土壤酶活性;植被恢复模式下酶活性与土壤肥力之间的关系密切,特别是有机质、全氮与土壤蔗糖酶、过氧化氢酶和碱性磷酸酶的相关性较好。因此,用土壤酶活性来评价植被恢复的效果是可靠的。
Five vegetation restoration models were selected to study the effects of different patterns on soil enzyme activities and the relationships between soil fertility and soil enzyme activities. The results showed that the activity of soil invertase, catalase and alkaline phosphatase increased significantly after the restoration of vegetation, and the sequence of acid invertase> Jatropha curcas> Neem, the soil enzyme activity of the same vegetation showed The rhizosphere was greater than the non-rhizosphere characteristics; different vegetation restoration patterns and planting methods had a greater impact on enzyme activity, contour ditch pattern has better soil conservation and fertilizer, and create a good microbial environment, enhanced Soil enzyme activity, enzyme activity and soil fertility were closely related to vegetation restoration mode, especially organic matter. The correlation between total nitrogen and soil invertase, catalase and alkaline phosphatase was good. Therefore, using soil enzyme activity to evaluate the effect of vegetation restoration is reliable.