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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。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
The static box method was used to study the methane fluxes of five mangrove communities at four sites in Dongzhaigang, Hainan Province. The results showed that the average methane flux in the forest soils was 0.81 m g · m-2 · d-1. The methane fluxes of 6 species of mangrove leaves were measured by the closed bag method of polyethylene bags. The results showed that mangrove leaves had the effect of absorbing atmospheric methane. The study of mangroves through Bruguiera sexangula also showed that the diurnal variation of methane fluxes in forest soils was related to inundation of tidal flat in the forest. The difference of methane fluxes in different beach soil of Hailianlin is related to soil water content. Seasonal variations of methane flux in soil show two forms depending on vegetation types or soil properties