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Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.




Introduction to CO2
  measurements
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.



                The Chamber guide
            Old transparent                         New transparent




Automatic transparent    New dark
                                                        New extension
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.



     The Chamber guide
  How to tell the difference and why bother
 Old transparent                        New transparent




V=0,316m           3              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
  named
  HI, HII, HIII,
  HIV
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.


             Chambers
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.




Closed Chamber Method
       Transparent extension
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.




Closed Chamber Method
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.



Remember the ventilator
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.


                                                 The ventilator
                                                 why is it important ?
This is the linearity                                     Measuring here
we are trying to                                          instead would be
measure                                                   BAAAD
                                                     CO2-Handmessung mit und ohne Lüfter


                  1200


                                                  mit Lüfter
                  1100
                              ohne Lüfter                           ohne Lüfter



                  1000
      CO2 (ppm)




                                                                                           mit Lüfter
                  900




                  800
                                                                                                              ohne Lüfter


                  700




                  600
                         1                  51        101            151             201                251          301
                                                                        Zeit (5s)
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.


                             The Loggers
         There are 7 loggers, they differ slightly in shape and size
         … and in components




                                               H4, H5
                                     CR1000, display shows
                                     all the parameters that
                                     you need for the protocol




    H1, H2, H3
CR 200, shows one parameter at                                     H6, H7
the time and
doesn´t have a clock build in
bring a clock with you
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.


                  The Loggers
The 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 Loggers
The 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.


Closed Chamber Method
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.




Closed Chamber Method
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.


Closed Chamber Method
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.




Closed Chamber Method
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.




Closed Chamber Method
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.


  What is wrong here
                           • Clouds in the sky =
                             bad PAR
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V.




Closed Chamber Method

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3. co2 measurement