湖北农业科学 ›› 2020, Vol. 59 ›› Issue (11): 25-30.doi: 10.14088/j.cnki.issn0439-8114.2020.11.005

• 资源·环境 • 上一篇    下一篇

草海湿地湖滨带不同类型土壤甲烷产生与氧化潜力的研究

寇永珍1, 林陶2   

  1. 1. 贵州省贵阳市花溪区久安乡生态保护站, 贵阳 550025;
    2. 贵州师范大学贵州省山地环境重点实验室, 贵阳 550001
  • 收稿日期:2019-07-18 出版日期:2020-06-10 发布日期:2020-08-06
  • 通讯作者: 林陶(1964-), 四川资中人, 副教授, 博士, 主要从事环境生物学、水环境生态学、污染物控制与生态修复研究, (电话)13984100839(电子信箱) lintao@gznu.edu.cn。
  • 作者简介:寇永珍(1988-), 女, 甘肃陇南人, 工程师, 硕士, 主要从事水土污染防治与生态修复研究, (电话)15185142275(电子信箱)1034267039@qq.com;

Methane production and oxidation potential of different types of soils in Caohai wetland lakeside zone

KOU Yong-zhen1, LIN Tao2   

  1. 1. Jiu’an Ecological Protection Station of Huaxi District, Guiyang 550025, China;
    2 Guizhou Provincial Key Laboratory of Mountain Environment, Guizhou Normal University, Guiyang 550001, China
  • Received:2019-07-18 Online:2020-06-10 Published:2020-08-06

摘要: 采用室内模拟培养技术, 研究了草海湿地湖滨带不同类型土壤甲烷产生及氧化潜力规律。结果表明, 草海湿地表层土(0~5 cm)为甲烷产生潜力最大区域。甲烷产生潜力大小排序为沼泽草甸>草甸>原生沼泽>耕地, 分别为10.448、3.188、0.741、0.042 μg/(g·d)。甲烷氧化累积潜力大小排序为沼泽草甸>草甸>耕地>原生沼泽, 分别为0.155 7、0.079 6、0.011 9、0.003 7 μg/(g·d)。随着土层深度的增加, 各类型土地甲烷产生潜力明显下降。草海湿地各类型土壤氧化潜力均低于产生潜力, 即草海高原湿地湖滨地土壤不具有从大气中吸收甲烷而使得大气中甲烷减少的潜力。

关键词: 甲烷, 产生潜力, 氧化潜力, 草海湿地

Abstract: The methane production and oxidation potential of different types of soils in the lake-shore zone of Caohai wetland were studied by means of laboratory simulation culture technique. Results showed that the potential of methane production in Caohai wetland surface soil (0~5 cm) was the largest. The order of methane production potential was 10.448 μg/(g·d) of swamp meadow, 3.188 μg/(g·d) of meadow, 0.741 μg/(g·d) of primary swamp, 0.042 μg/(g·d) of cultivated land. The cumulative potential of methane oxidation was 0.155 7 μg/(g·d) of swamp meadow soil, 0.079 6 μg/(g·d) of meadow soil, 0.011 9 μg/(g·d) of cultivated land, 0.003 7 μg/(g·d) of primary swamp soil. With the increase of soil depth, the methane production potential of various types of land decreased obviously. The oxidation potential of all types of soils in Caohai wetland is lower than that in the production potential, which meaned, the soil in the lakeside soil of the Caohai plateau wetland did not have the potential to absorb methane from the atmosphere and reduce the methane in the atmosphere.

Key words: methane, generating potential, oxidation potential, Caohai wetland

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