Quantifying Plant Water Use in the Native Coteau Rangelands of North Dakota

Table 3


 

Table 3. Average photosynthetic active photon flux density (PPFD, in μmol m-2 s-1) and air temperature (˚C) for selected days for which leaf gas exchange data are shown. The values are based on measured data made between 10:00am to 6:00pm local time. Included in parentheses are the standard deviations of the data.

Date

PPFD(μmol m-2 s-1)

Air temperature(˚C)

22 Jun. 2001

1665 (321)

27.2 (1.3)

25 Aug. 2001

1653 (231)

36.6 (0.9)

24 Sep. 2001

1718 (220)

21.4 (2.0)

25 Sep. 2001

1708 (161)

24.7 (1.8)

 

Return to Results 2001 

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