Methane concentration in water column and in pore water of a coastal lagoon (Cabiúnas lagoon, Macaé, RJ, Brazil)
Methane concentration in water column and in pore water of a coastal lagoon (Cabiúnas lagoon, Macaé, RJ, Brazil)
复制标题
DOI：
10.1590/s1516-89132004000200018
复制
发表时间：
2004-06-01
影响因子：
1
通讯作者：
Esteves, Francisco de Assis
中科院分区：
文献类型：
--
作者：
Fonseca, André Luiz dos Santos;Minello, Murilo;Esteves, Francisco de Assis
本研究的目的是评估甲烷浓度的水柱和孔隙水在湖沼和沿岸的地区的沿海泻湖。在沿岸的地区，样品取自三个单种的大型植物林分（香蒲domingensis。Eleocharis interstincta和Potamogeton stenostachys）。孔隙水中的甲烷浓度在沿岸的区域高于浓度发现在湖沼区的沉积物的每个部分。在P. stenostachys林中，沉积物的表面部分（0-2 cm）中的甲烷浓度较高（3.7 mM）。这是唯一的显著差异（p0.05）。可见，水生植物对孔隙水甲烷浓度有较大影响。
The aim of this study was to evaluate methane concentration in water column and pore water at limnetic and littoral regions of a coastal lagoon. At the littoral region samples were taken from three monospecfic macrophytes stands (Typha domingensis. Eleocharis interstincta and Potamogeton stenostachys). The methane concentration in the pore water at the littoral region was higher in than the concentration found at the limnetic region in each fraction of the sediment. The higher methane concentration in the superficial fraction of the sediment (0-2 cm) was shown at the P. stenostachys stand (3.7 mM). It was the only significantly different (p0.05). It could be concluded that there was a high influence of aquatic macrophytes on the pore water methane concentration.