[1]秦纪洪,武艳镯,孙辉,等.彭州市龙门山不同地震裸地次生演替初期土壤酶活性研究[J].水土保持研究,2013,20(03):55-59.
　QIN Ji-hong,WU Yan-zhuo,SUN Hui,et al.Study on the Soil Enzyme Activity Dynamics under Different Ecological Restoration Models on Earquake-Induced Bareland in Mt. Longmen, Pengzhou[J].Research of Soil and Water Conservation,2013,20(03):55-59.
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彭州市龙门山不同地震裸地次生演替初期土壤酶活性研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年03期 页码: 55-59 栏目: 出版日期: 2013-06-28
Title:
Study on the Soil Enzyme Activity Dynamics under Different Ecological Restoration Models on Earquake-Induced Bareland in Mt. Longmen, Pengzhou
作者:
秦纪洪1, 武艳镯2, 孙辉2, 王琴2
1. 成都大学 城乡建设学院环境工程系, 成都 610106;
2. 四川大学 环境科学与工程系, 成都 610065
Author(s):
QIN Ji-hong1, WU Yan-zhuo2, SUN Hui2, WANG Qin2
1. Department of Environmental Engineering, College of Urban and Rural Construction, Chengdu University, Chengdu 610106, China;
2. Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China
关键词:
汶川地震; 次生演替; 生态恢复; 土壤酶活性; 龙门山
Keywords:
Wenchuan earthquake; secondary succession; ecological restoration; soil enzyme activities; Mt. Longmen
分类号:
S154.2
摘要:
地震形成的次生裸地的生态恢复包括植被和土壤的结构与功能恢复两个方面。选取彭州龙门山地震崩塌地、泥石流冲积扇、滑坡体等震后形成的三个典型次生裸地恢复3 a后，对表土（0—30 cm）有机碳、水溶性氮、有效磷和土壤酶活性等性质进行了研究，以评价恢复初期不同次生裸地的土壤恢复状况。结果显示，自然恢复3 a，土壤有机碳恢复到原生样地的27%~42%，可溶性碳恢复至原生样地的25%~46%，可溶性氮恢复至原生样地的6%~14%，有效磷恢复至原生样地的21%~83%。土壤酶中，过氧化氢酶活性恢复较快，达到对照样地过氧化氢酶活性的70%以上，而脲酶、蔗糖酶、碱性磷酸酶活性恢复较慢，分别为对照样地的5%~19%，6%~48%，6%~26%，因此地震形成的次生裸地上土壤肥力质量与土壤酶活性的恢复是一个长期的过程。
Abstract:
Ecological restoration on those secondary bareland induced by earthquake generally includes restoration of vegetation and soil structure and function. Topsoils (0-30 cm) were sampled from three typical sites of secondary bareland caused by 5·12 Wenchuan Earthquake, i.e., earthquake collapse, debris flow alluvial fan, and landslide site in Mt. Longmen, soil enzyme activities, soil organic carbon, dissolved N, and available P were examined to determine soil restoration status after 3 years of earthquake. Results showed that after three years of natural restoration of vegetation, soil organic carbon, dissolved organic C, dissolved nitrogen, available phosphorus have been recovered to 27%~42%, 25%~46%, 6%~14%, 21%~83% of those in control plots, respectively. For soil enzymes, catalase activity was restored to more than 70% of that undisturbed plots, while activities of urease, sucrase, and alkaline phosphatase restored slowly, only were restored to 5%~19%, 6%~48%, and 6%~26% of those in undisturbed plots respectively, which indicated that restoration of soil fertility and soil enzyme activity is a long-term process for those secondary bare lands induced by earthquake.

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备注/Memo

收稿日期:2012-10-12;改回日期:2012-11-16。
基金项目:成都市科技局项目（10YTYB130SF-023）；成都大学校基金（2010XJZ13）和中央高校基本科研业务费（2010SCU22007）
作者简介:秦纪洪(1981-),女,四川成都人,博士,讲师,主要从事环境变化背景下高寒生态系统效应方面的研究。E-mail:floodqjh@gmail.com
通讯作者:孙辉(1971-),男,四川南充人,副研究员,主要从事土壤退化过程及恢复生态方面的研究。E-mail:sunhuifiles@gmail.com

更新日期/Last Update: 1900-01-01