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来源：百度知道 编辑：UC知道 时间：2024/09/28 14:26:01
Inorganic nitrogen and soluble reactive phosphate (o-P) concentrations were measured in the water of a marsh and in its interstitial water at two sites, and in the river water of a floodplain marsh of the Lower Paran?River. These values were compared with the N and P concentration in sediments and macrophyte biomass in order to assess nutrient availability, fate and storage capacity. High variability was found in the interstitital water using a 1 cm resolution device. Nitrate was never detected in the pore water. Depth averaged NH4C concentrations in the upper 30 cm layer often ranged from N = 1.5 to 1.8 mg l􀀀1, but showed a pronounced minimum (0.5–0.7 mg l􀀀1), close to (March 95), or relatively soon after (May 94) the end of the macrophyte growing season. Soluble phosphate showed a large variation between P = 0.1–1.1 mg l􀀀1 without any discernible seasonal pattern. NH4C depletion in the pore water concentration and low N/P ratios (3.7 by weight) within the m

Inorganic nitrogen and soluble reactive phosphate (o-P) concentrations were measured in the water of a marsh and in its interstitial water at two sites, and in the river water of a floodplain marsh of the Lower Parana River.
在两处分别测量湿地及其孔隙水中，以及巴拉那河下游洪泛区湿地河水中无机氮和可溶活性磷酸盐（o-P）的浓度。
These values were compared with the N and P concentration in sediments and macrophyte biomass in order to assess nutrient availability, fate and storage capacity.
这些数值被用来与沉淀物和大型动植物中的氮磷浓度相比较，由此得出营养物质的有效性，去向和储存量。
High variability was found in the interstitial water using a 1 cm resolution device. Nitrate was never detected in the pore water.
用1厘米的分辨率在孔隙水中发现了高可变性。在孔隙水中未检测出硝酸盐。
Depth averaged NH4C concentrations in the upper 30 cm layer often ranged from N = 1.5 to 1.8 mg l􀀀1, but showed a pronounced minimum (0.5–0.7 mg l􀀀1), close to (March 95), or relatively soon after (May 94) the end of the macrophyte growing season.
深度为30厘米的上层NH4C的平均浓度，氮含量通常是N = 1.5到1.8mg