Light Penetration for E001

Readings were taken .5m from the front and back of each plot. The distance from the left or right edge varies from year to year. If light readings were taken before the vegetation is sampled that year, the light readings were taken in the location of the clip strip. If light readings were taken after the vegetation had been clipped, the location of the light readings is moved to one side, or the other, of the clip strip so the bare spot will not affect the readings. Usually, a set of readings was taken from the front of the plot and a second set was taken from the back of the plot. The date, time, field, plot, side (left or right), front or back, distance from the side of the plot, range value (before 1988) and the display reading are all recorded for each measurement.

If there was a gopher mound where the light reading was to be taken, the sensor was moved in from the edge of the plot until it was no longer over a gopher mound. This was then recorded on the data sheet.

See light measurements for details on equipment and other field methods.