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 .81m g.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。
Using a static chamber technique,methane fluxes from sediments of five mangrove communities at four sites were studied.An average value of 0.81 mg·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.
出处
《植物生态学报》
CAS
CSCD
北大核心
2000年第1期87-90,共4页
Chinese Journal of Plant Ecology
基金
国家自然科学基金!( 4 96762 98)
香港科技大学资助
