Calibration of the Nitrous Oxide (N2O) Microsensors
3:45
Core Preparation and Acetylene Inhibition
4:42
Denitrification (N2O Accumulation Measure)
5:36
Final Measurement Steps and Denitrification Rate Calculations
6:35
Results: Nitrate Limitation of Denitrification Rates in a Mountain Lake
7:10
Conclusion
Transkript
This method can help answer key questions in biogeochemistry related to denitrification in sediments which are relevant for understanding the nitrogen cycle and the greenhouse gas emissions. The main advantages of this technique are the low distur
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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.