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应用生态学报 ›› 2017, Vol. 28 ›› Issue (4): 1145-1154.doi: 10.13287/j.1001-9332.201704.040

• 目次 • 上一篇    下一篇

艾比湖湿地典型植物群落土壤酶活性季节变化特征

朱海强1,2, 李艳红1,2*, 李发东1,2,3,4   

  1. 1新疆师范大学地理科学与旅游学院, 乌鲁木齐 830054
    2新疆维吾尔自治区重点实验室, 新疆干旱区湖泊环境与资源实验室, 乌鲁木齐 830054
    3中国科学院地理科学与资源研究所, 北京 100101
    4中国科学院大学资源与环境学院, 北京 100190
  • 收稿日期:2016-08-16 出版日期:2017-04-18 发布日期:2017-04-18
  • 通讯作者: * E-mail: lyh0704@126.com
  • 作者简介:朱海强,男,1992年生,硕士研究生.主要从事干旱区资源开发与规划研究.E-mail:974467061@qq.com
  • 基金资助:
    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

Seasonal variations of soil enzyme activities in typical plant communities in the Ebinur Lake wetland, China

ZHU Hai-qiang1,2, LI Yan-hong1,2*, LI Fa-dong1,2,3,4   

  1. 1College of Geographic Science and Tourism, Xinjiang Normal University, Urumqi 830054, China
    2Key Laboratory of Xinjiang Uygur Autonomous Region, Xinjiang Laboratory of Lake Environment and Resources in Arid Area, Urumqi 830054, China
    3Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    4College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China
  • Received:2016-08-16 Online:2017-04-18 Published:2017-04-18
  • Contact: * E-mail: lyh0704@126.com
  • Supported by:
    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

摘要: 对艾比湖湿地典型芦苇和柽柳群落土壤过氧化氢酶、磷酸酶和脲酶及其影响因素进行了分析.结果表明: 在植物不同的生长期,土壤酶活性具有明显的季节变化特征,芦苇群落土壤过氧化氢酶、磷酸酶和脲酶峰值均出现在生长旺盛期(3.26、0.60、0.33 mg·g-1),谷值出现在萌芽期和展叶期,而柽柳群落的峰值出现在枯黄期(6.33、0.58、0.21 mg·g-1),谷值出现在开花期和生长旺盛期;脲酶在不同生长期较为稳定,是湿地土壤酶活性差异的指示指标;芦苇和柽柳群落不同生长期土壤酶活性与土壤有机质和全磷含量呈显著正相关,而与土壤含水量的相关性不显著;芦苇群落迅速生长期土壤酶活性与土壤铵态氮呈显著正相关;两种植物群落土壤盐分与酶活性的相关性不显著.芦苇和柽柳群落不同生长期土壤酶活性受多因素的共同影响,土壤有机质和水热因子是影响艾比湖高盐湖泊湿地土壤酶活性的主导因子.

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.