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Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
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Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors

DOI:
10.3791/58553-v

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07:59 min

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December 06, 2018

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, ,
1Campus UAB,CREAF, 2Center for Advanced Studies of Blanes, (CEAB, CSIC), 3CSIC

Capítulos

  • 00:04Título
  • 00:32Sediment Core Collection
  • 02:37Calibration of the Nitrous Oxide (N2O) Microsensors
  • 03:45Core Preparation and Acetylene Inhibition
  • 04:42Denitrification (N2O Accumulation Measure)
  • 05:36Final Measurement Steps and Denitrification Rate Calculations
  • 06:35Results: Nitrate Limitation of Denitrification Rates in a Mountain Lake
  • 07:10Conclusion

Summary

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This method estimates sediment denitrification rates in sediment cores using the acetylene inhibition technique and microsensor measurements of the accumulated N2O. The protocol describes procedures for collecting the cores, calibrating the sensors, performing the acetylene inhibition, measuring the N2O accumulation, and calculating the denitrification rate.

Tags

Keywords: Sediment DenitrificationNitrogen CycleGreenhouse Gas EmissionsN2O MicrosensorsSediment CoresWater-sediment InterfaceGravity CoringNitrous Oxide Calibration

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