3. co2 measurement
TRANSCRIPT
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
New dark
The Chamber guideOld transparent New transparent
Automatic transparent New extension
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
The Chamber guideHow to tell the difference and why bother
Old transparent New transparent
V=0,316m3 V=0,296m3
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
The Plots
• Manual: three repetitions in each plot, they are named:HI, HII, HIII
• Automatic: Four repetitions in the plot, they are namedHI, HII, HIII, HIV
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
Closed Chamber MethodTransparent extension
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
The ventilatorwhy is it important ?
CO2-Handmessung mit und ohne Lüfter
600
700
800
900
1000
1100
1200
1 51 101 151 201 251 301
Zeit (5s)
CO
2 (p
pm
)
mit Lüfter
mit Lüfter
ohne Lüfter ohne Lüfter
ohne Lüfter
This is the linearity we are trying to measure
Measuring here instead would be BAAAD
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
The LoggersThere are 7 loggers, they differ slightly in shape and size
H1, H2, H3
H4, H5
H6, H7CR 200, shows one parameter at the time anddoesn´t have a clock build in
bring a clock with you
CR1000, display shows all the parameters that you need for the protocol
… and in components
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
The LoggersThe measurements of the loggers are depended on the flow through. This does not stabilize till after 10-15min – do not make measurements the first 10min after turning on the logger
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
The LoggersThe measurements of the loggers are depended on the flow through. This does not stabilize till after 10-15min – do not make measurements the first 10min after turning on the logger
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
What is wrong here
• Clouds in the sky = bad PAR