Impacts of Typhoon Soulik on Dissolved Methane, Acetate, Etc.in Soil Porewater of Marshes in the Min River Estuary
Typhoon is an important form of natural disturbance in coastal wetland ecosystem in tropical and temperate regions.To assess the impacts of typhoon on concentrations of porewater acetate, formic, sulfate,dissolved carbon dioxide and dissolved methane in coastal marshes, above indicators were measured prior to and after Typhoon Soulik in July 2013 in a Spartina alterniflora marsh and a Cyperus malaccensis marsh in the Min River estuary.Typhoon Soulik caused a distinct decrease of the concentrations of acetate, dissolved carbon dioxide and dissolved methane in porewater (p＜0.05), however, increased the sulfate concentration significantly (p＜0.05).Compared with the Cyperus malaccensis marsh, the effects of Typhoon Soulik on the Spartina alterniflora marsh was greater.There was obvious difference of the impact degree of Typhoon Soulik on the concentrations of acetate, sulfate, dissolved carbon dioxide and dissolved methane in porewater of soil layer of depth of 10-20 cm and other soil layers in the Cyperus malaccensis marsh, but the responses of the pore water concentrations of acetate, dissolved carbon dioxide and dissolved methane to Typhoon Soulik in different soil layers were more complex in the Spartina alterniflora marsh.
porewateracetatedissolved methanedissolved carbon dioxideTyphoon SoulikMin River estuary
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万方数据
