猫儿山不同海拔典型植被带土壤酶活性变化特征

发布时间：2018-04-12 20:05

本文选题：海拔 + 植被带　；参考：《基因组学与应用生物学》2016年12期

【摘要】：为研究猫儿山不同海拔典型植被带土壤酶活性的变化规律,对该保护区内4个不同海拔植被带的5种土壤酶活性进行了分析测定。结果表明:随着海拔的上升,土壤磷酸酶、多酚氧化酶和过氧化氢酶活性随海拔上升呈递增趋势,而土壤脲酶和蔗糖酶活性呈递减趋势。不同海拔植被带土壤酶活性与土壤理化性质的相关性分析结果表明,除了全磷外,土壤过氧化氢酶活性与其它理化性质之间的相关性均达到显著或极显著水平。土壤过氧化氢酶活性与脲酶和蔗糖酶活性之间呈显著负相关关系。土壤过氧化氢酶活性与土壤理化性质及其它酶活性之间的相关性最为显著。猫儿山不同海拔典型植被带土壤酶活性呈现一定的变化规律,该结果揭示了不同海拔土壤酶活性的差异及空间分布特点,为猫儿山不同海拔森林土壤的利用和改良提供理论依据。
[Abstract]:In order to study the changes of soil enzyme activities in typical vegetation zones at different elevations in Maoershan, five kinds of soil enzyme activities in four different elevation vegetation zones in this reserve were analyzed and determined.The results showed that the activities of soil phosphatase, polyphenol oxidase and catalase increased with elevation, but the activities of soil urease and sucrase decreased.The correlation between soil enzyme activity and soil physical and chemical properties in different altitude vegetation zones showed that the correlation between soil catalase activity and other physical and chemical properties was significant or extremely significant except for total phosphorus.There was a significant negative correlation between soil catalase activity and urease and sucrase activity.The correlation between soil catalase activity and soil physical and chemical properties and other enzyme activities was most significant.The soil enzyme activities in typical vegetation zones of Maoer Mountain showed a certain variation law. The results revealed the differences of soil enzyme activities and their spatial distribution characteristics at different elevations.It provides a theoretical basis for the utilization and improvement of forest soil at different altitudes in Maoershan.
【作者单位】：中国林业科学研究院资源昆虫所;广西壮族自治区林业科学研究院;广西壮族自治区亚热带作物研究所;猫儿山国家级自然保护区管理局;
【基金】：国家林业局公益性行业科研专项项目(201204101-11) 广西自然科学基金(项目任务书编号2016GXNSFBA380051) 广西林科院基金(林科201614号);广西林科院基金(林科201616号) 广西优良用材林资源培育重点实验室开放课题(14B0202)共同资助
【分类号】：S154.2

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