首页 | 本学科首页   官方微博 | 高级检索  
     检索      

崇明西滩芦苇湿地土壤酶活性特征的研究
引用本文:付,杰,赵,丹,蒋敏芝等.崇明西滩芦苇湿地土壤酶活性特征的研究[J].安徽农业科学,2014(7):1969-1972.
作者姓名:        蒋敏芝等
作者单位:[1]华东师范大学资源与环境科学季院,上海200062 [2]上海市城市化生态过程与生态恢复重点实验室,上海200062
基金项目:上海市城市化生态过程与生态恢复重点实验室开放课题基金项目(11DZ2274700).
摘    要:目的]为了解崇明岛西滩芦苇湿地的土壤酶活性特征,以便深入研究潮滩芦苇湿地碳源碳汇的生物学机制。方法]分别于生长季和非生长季在崇西芦苇湿地和光滩采集不同深度的土层样品,研究土壤过氧化氢酶、蔗糖酶、淀粉酶及纤维素酶的活性特征;同时,对比分析各种酶在生长季、非生长季及在不同深度下的活性变化特征;结合相关酶的特性及所研究区域的环境特征,分析相关变化特征的产生原因。结果]芦苇湿地土壤过氧化氢酶活性在(0.20±0.01)~(0.26±0.04)ml/(h·g)之间;芦苇湿地土壤过蔗糖酶活性在(0.42±0.02)~(3.44±0.17)mg/g之间;芦苇湿地土壤淀粉酶活性在(0.018±0.004)~(1.335±0.070)mg/g之间;芦苇湿地土壤纤维素酶活性在(0.059±0.005)~(2.614±0.090)mg/g之间。结论]崇西芦苇湿地过氧化氢酶、淀粉酶和纤维素酶活性基本上呈现出表层土低于根层土的特征;过氧化氢酶、淀粉酶和纤维素酶活性均表现为生长季低于非生长季的特征。这3种酶受土壤深度、季节影响较大。

关 键 词:崇明西滩  湿地  土壤酶活性

Soil Enzyme Activities in Chongming Xitan Wetlands Dominated with Phragmites australis
FU Jie,LI Xiu-yan.Soil Enzyme Activities in Chongming Xitan Wetlands Dominated with Phragmites australis[J].Journal of Anhui Agricultural Sciences,2014(7):1969-1972.
Authors:FU Jie  LI Xiu-yan
Institution:et ai ( College of Resource and Environment East China-Normal University, Shanghai 200062 ; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, Shanghai 200062)
Abstract: Objective ] The research aimed to understand soil enzyme characteristics of Chongming Xitan wetlands, and further study the mi- crobiology mechanism in Chongming Xitan wetlands. Method]Soil enzyme activities (catalase, invertase, amylase and cellulase) of Chongming Xitan wetlands with Phragmites australis had been studied. Soil samples in different soil layers were collected in growing season and nongrowing season. Enzyme activities in different layers and different seasons were analyzed. Relevant variations were analyzed combined with characters of specific enzyme and environment character of sampling sites. Result] Catalase activities were (0.20 ±0.01 ) - (0.26±0.04) ml/( h · g). Invertase activities were (0.42 ±0.02) - (3.44±0.17) mg/g. Amylase activities were (0.018 ± 0. 004) - ( 1. 335 ± 0.070) mg/g. And invertase activities were (0. 059 ± 0. 005 ) - (2. 614 ± 0.09 ) mg/g. Conclusion ] Catalase, amylase and cellulase activities in surface layers were higher than those in bottom layers, and those in growing season were lower than those in the non-growing season. Soil depth and seasonal shifts could cause an major influence on catalase, amylase and cellulase activities.
Keywords:Chongming Xitan  Wetland  Soil enzyme activity
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号