Nitrate concentrations at different soil depths in the soil columns from three sites dominated by different vegetation types in Qixing River Wetland National Nature Reserve.

Nitrate concentrations at different soil depths in the soil columns from three sites dominated by different vegetation types in Qixing River Wetland National Nature Reserve.</p

Temporal variation of concentration at different soil depth in the soil columns from site dominated <i>C</i>. <i>epigeios</i>.

Temporal variation of concentration at different soil depth in the soil columns from site dominated C. epigeios.</p

Temporal variation of concentration at different soil depth in the soil columns from site dominated <i>P</i>. <i>australis</i>.

Temporal variation of concentration at different soil depth in the soil columns from site dominated P. australis.</p

Soil characteristics of the three studied wetland vegetation sites (<i>C</i>. <i>epigeios</i>, <i>P</i>. <i>australis</i> and <i>C</i>. <i>schnimdtii</i>) in Qixing River National Nature Reserve wetland.

Results are in mean ± SE.</p

Hourly fluxes of surface water at different soil depths in laboratory setup incubated for 30 days.

(a) Soil from site dominated by C. epigeios, (b) soil from site dominated by P. australis, (c) soil from site dominated by C. schnimdtii. Error bars represent standard error of the mean.</p

Ammonium concentrations at different soil depths in the soil columns from three sites dominated by different vegetation types in Qixing River Wetland National Nature Reserve.

Ammonium concentrations at different soil depths in the soil columns from three sites dominated by different vegetation types in Qixing River Wetland National Nature Reserve.</p

Temporal variation of concentration at different soil depth in the soil columns from site dominated by <i>C</i>. <i>schnimdtii</i>.

Temporal variation of concentration at different soil depth in the soil columns from site dominated by C. schnimdtii.</p

A schematic diagram of the laboratory experiment set up (not drawn into scale).

A schematic diagram of the laboratory experiment set up (not drawn into scale).</p

Fluxes of N₂O from soil in laboratory setup from Qixing River Wetland National Nature Reserve incubated for 30 days.

(a) Soil from site dominated by C. epigeios, (b) soil from site dominated by P. australis, (c) soil from site dominated by C. schnimdtii. Error bars represent standard error of the mean.</p

Nitrate () and ammonium () concentrations measured at different depths (upper inlet (5cm above soil-water surface) and lower outlet (30cm)) of the laboratory experiment soil columns.

Results are in mean ± SE for the whole study period (30 day time period).</p