水土保持研究2013，Vol.20Issue(3)：55-59,5.
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
Study on the Soil Enzyme Activity Dynamics under Different Ecological Restoration Models on Earquake-Induced Bareland in Mt.Longmen, Pengzhou
摘要
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.关键词
汶川地震/次生演替/生态恢复/土壤酶活性/龙门山Key words
Wenchuan earthquake/ secondary succession/ ecological restoration/ soil enzyme activities/ Mt.Longmen分类
农业科技引用本文复制引用
秦纪洪,武艳镯,孙辉,王琴..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(3):55-59,5.基金项目
成都市科技局项目(10YTYB130SF-023) （10YTYB130SF-023）
成都大学校基金(2010XJZ13)和中央高校基本科研业务费(2010SCU22007) （2010XJZ13）
