应用生态学报2017，Vol.28Issue(4)：1145-1154,10.DOI:10.13287/j.1001-9332.201704.040
艾比湖湿地典型植物群落土壤酶活性季节变化特征
Seasonal variations of soil enzyme activities in typical plant communities in the Ebinur Lake wetland, China
摘要
Abstract
In this study,the soil catalase,phosphatase and urease activities of typical plant communities of reed (Phragmites australis) and tamarisk (Tamarix ramosissima) and their influencing factors were investigated in Ebinur Lake wetland.The results showed that three soil enzyme activities of reed and tamarisk had seasonal dynamic characteristics during different growth periods.For the reed community,the peak concentrations of soil catalase,phosphatase and urease appeared at vigorous stage with 3.26,0.60 and 0.33 mg · g-1,respectively,and the minimum value occurred at budding stage and leaf-expansion stage.For the tamarisk community,the peak values of three soil enzyme activities appeared at withered stage with values of 6.33,0.58 and 0.21 mg · g-1,respectively,and the valley values were observed at flowering and vigorous stages.Urease was stable during different growth periods,and it could be used as an indicator to identify the differences of soil enzyme activities in the wetlands.The enzyme activities of reed and tamarisk had significant positive correlation with soil organic matter and total P in all growth periods,while there was no significant relationship between enzyme activities and soil water content.The enzyme activities of reed had significant positive correlation with ammonium nitrogen in the rapid growth period.There were no significant relationships between enzyme activities and soil salinity in both communities.The soil enzyme activities of reed and tamarisk were controlled by many factors.Soil organic matter,soil water and soil temperature were the main factors influencing the enzyme activities in the Ebinur Lake wetland.关键词
芦苇/柽柳/土壤酶/生长期Key words
Phragmites australis/Tamarix ramosissima/soil enzyme/growth period引用本文复制引用
朱海强,李艳红,李发东..艾比湖湿地典型植物群落土壤酶活性季节变化特征[J].应用生态学报,2017,28(4):1145-1154,10.基金项目
本文由新疆维吾尔自治区重点实验室开放课题项目(2015KL015)、国家自然科学基金项目(41561104)、新疆师范大学地理学博士点支撑学科开放课题项目(XJNU-DL-201617)和天山学者项目资助 This work was supported by the Key Laboratory Open Topics of Xinjiang Uygur Autonomous Region (2015KL015),the National Natural Science Foundation of China (41561104),the Xinjiang Normal University Doctoral Program of Geography Support Subject (XJNU-DL-201617),and the Tianshan Talents Program of Xinjiang Uygur Autonomous Region. （2015KL015）
