植物生态学报 ›› 2000, Vol. 24 ›› Issue (1): 87-90.

所属专题: 红树林及红树植物 碳水能量通量

• 论文 • 上一篇    下一篇

海南岛东寨港红树林群落甲烷通量研究

卢昌义,叶勇,黄玉山,谭凤仪   

  • 发布日期:2000-01-10
  • 通讯作者: 卢昌义

Methane Fluxes from Mangrove Communities at Dongzhai Harbour, Hainan

LU Chang-Yi, YE Yong, WONG Yuk-Shan and TAM N.F.Y .   

  • Published:2000-01-10
  • Contact: LU Chang-Yi

摘要:

采用静态箱法对海南东寨港4个站位的5个红树林群落的土壤甲烷通量进行了研究,结果表明林地土壤平均甲烷通量为0.81mg·m-2·d-1。利用聚乙烯袋密闭法测定了6种红树植物叶片的甲烷通量,发现红树植物叶片具有吸收大气甲烷的效应。通过海莲(Bruguiera sexangula)红树林的研究还表明,林地土壤甲烷通量的日变化与林内潮水淹浸状况有关。海莲林不同滩面土壤甲烷通量的差异与土壤含水量有关。土壤甲烷通量的季节差异因植被类型或土壤性质不同而表现为两种形式。

关键词: 海南岛, 红树林, 甲烷通量

Abstract:

Using a static chamber technique, methane fluxes from sediments of five mangrove communities at four sites were studied. An average value of 0.81mg·m-2·d-1 was observed. Using polyethylene bags, methane fluxes through leaves of six mangrove species were also studied. It indicates that mangrove leaves generally absorbed atmospheric methane as an overall effect. Diurnal variations of methane fluxes from sediments of Bruguiera sexangula community at Changning site were related to tidal conditions in the forest while flat variations of methane fluxes from sediments of this community were related to soil water contents. There were two different seasonal patterns of methane flux from soils in the five mangrove communities.

Key words: Hainan Island, Mangrove, Methane flux