| 石灰岩退化生态系统不同恢复阶段土壤酶活性研究 |
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| 引用本文： | 何跃军,钟章成,刘济明,刘锦春,金静,李青雨. 石灰岩退化生态系统不同恢复阶段土壤酶活性研究[J]. 应用生态学报, 2005, 16(6): 1077-1081 |
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| 作者姓名： | 何跃军 钟章成 刘济明 刘锦春 金静 李青雨 |
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| 作者单位： | 1. 西南师范大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆 400715;2. 贵州大学林学院, 贵阳 550025 |
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| 基金项目： | 国家自然科学基金资助项目(30370279). |
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| 摘 要： | 研究了石灰岩退化生态系统不同恢复阶段的土壤酶活性.结果表明,石灰岩退化生态系统土壤酶活性在土壤剖面上无明显的递减规律;随着演替进展,土壤酶活性增强,土壤酶活性随植被特征、土壤类型以及酶本身的性质不同而表现各异.整体上石灰岩各阶段土壤酶活性:灌木林>柏木乔林>草本,同一植被类型下石灰岩柏木林>紫色砂岩柏木林.石灰岩退化生态系统土壤酶活之间以及酶活与pH值之间无显著相关性,而含水率和土壤全氮则与土壤酶活性呈显著或极显著相关,说明水分以及养分是石灰岩地区生态恢复的关键性因子.不同类型的土壤酶在同一植被土壤系统中酶活性表现不一,同一种酶在同一土壤类型而不同的生态恢复阶段酶活性表现不一,同一植被类型下的不同土壤类型中酶活性也有分异.
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| 关 键 词： | 石灰岩 退化生态系统 土壤酶 |
| 文章编号： | 1001-9332(2005)06-1077-05 |
| 收稿时间： | 2004-08-16 |
| 修稿时间： | 2004-08-16 |
Soil enzyme activities of limestone degraded ecosystem at its different restoration phases |
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| HE Yuejun,ZHONG Zhangcheng,Liu Jiming,Liu Jinchun,JIN Jing,LI Qingyu. Soil enzyme activities of limestone degraded ecosystem at its different restoration phases[J]. The journal of applied ecology, 2005, 16(6): 1077-1081 |
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| Authors: | HE Yuejun ZHONG Zhangcheng Liu Jiming Liu Jinchun JIN Jing LI Qingyu |
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| Affiliation: | 1. Key Laboratory of Eco-Environments in Three Gorges Reservoir Region of Education Ministry, College of Life Science, Southwest China Normal University, Chongqing 400715, China;2. College of Forestry, Guizhou University, Guiyang 550025, China |
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| Abstract: | The study showed that there was no distinct descending of enzyme activities along the soil profile of limestone degraded ecosystem,which were enhanced with progressive succession,and varied with vegetation characteristics,soil types,and soil enzyme properties.On the whole,soil enzyme activities enhanced in order of herb < Cupressuss funebris high forest
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| Keywords: | Limestone Degraded ecosystem Soil enzyme. |
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