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| 退化喀斯特植被恢复过程中土壤酶活性特征研究 | |
| 引用本文： | 邹军,喻理飞,李媛媛. 退化喀斯特植被恢复过程中土壤酶活性特征研究[J]. 生态环境, 2010, 19(4): 894-898 |
| 作者姓名： | 邹军 喻理飞 李媛媛 |
| 作者单位： | 1. 贵州省森林病虫检疫防治站,贵州,贵阳,550001 2. 贵州大学林学院,贵州,贵阳550025 3. 贵州省植物园,贵州,贵阳,550003 |
| 基金项目： | 国家科技支撑计划，国家重点基础研究发展规划(973计划)，贵州省农业攻关项目 |
| 摘 要： | 采用空间代替时间的方法,在贵州西南部花江典型喀斯特峡谷区选择裸地、草本、灌木、乔林四个植被恢复阶段作为退化植被恢复过程中不同恢复阶段。然后在一年中四个季节的每一季节分别对四个阶段样地进行取土,带回实验室风干磨细。分别用比色法测定脲酶活性,用比色法测定淀粉酶活性,用碘量滴定法测定多酚氧化酶活性。通过一年的实验结果表明,土壤酶活性随植被恢复过程逐渐提高,即裸地阶段〈草本群落阶段〈灌木群落阶段〈乔林阶段。土壤酶在土壤中分布是根际土大于非根际土,垂直剖面上,A层总是大于B层。脲酶、淀粉酶、多酚氧化酶活性在一年中总体表现为春夏季高,冬季低的特点,具体的酶表现不尽相同。各层次酶活性季节性变化趋势相同。 |
| 关 键 词： | 土壤酶活性 植被恢复过程 季节变化 喀斯特 |
Study on soil enzyme activity characteristics during succession of degraded karst vegetation |
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| ZOU Jun,YU Lifei,LI Yuanyuan. Study on soil enzyme activity characteristics during succession of degraded karst vegetation[J]. Ecology and Environmnet, 2010, 19(4): 894-898 | |
| Authors: | ZOU Jun YU Lifei LI Yuanyuan |
| Affiliation: | ZOU Jun1,YU Lifei2,LI Yuanyuan3 1.Forest pest management , quarantine station of Guizhou province,Guiyang 550001,China,2.College of Forestry,Guizhou University,Guiyang 550025,3.Guizhou Botanical Garden,Guiyang 550003 |
| Abstract: | Adopting the method of space instead of time in this paper,taking bare land,herb,shrub and arbor community as four different recovery stages of during succession of degraded karst vegetation in huajiang typical Karst valley of southwest Gui zhou.The soil samples of different restoration stages were collected and air-dried in each season of one year.Urease activity and amylase activity were measured by using colorimetry,polyphenol oxidase activity using iodine titration way.The results showed that soil enzym... |
| Keywords: | soil enzyme activity vegetation recovery procedure Seasonal variation karst |
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