Correlation of Exposure and Potential Solar Radiation to Plant Frequency of Agropyron desertorum

Mayland, H.F. (1972) Correlation of Exposure and Potential Solar Radiation to Plant Frequency of Agropyron desertorum. Ecology. 53(6):1204-1206.

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Abstract

The hypothesis that exposure and potential solar beam radiation are useful
parameters in describing frequency response of a monoculture bunchgrass was tested. Slope,
aspect [sine (azimuth angle +68°)]; and daily potential solar beam radiation (June 22)
accounted for 18%, 8% and 13%, respectively, and 22% collectively, of the variation in
Agropyron desertorum plant frequency. Maximum plant numbers occurred on south- to-west
exposures, but these exposures had more steeply inclined slopes and actually received less
potential solar radiation than others during the summer solstice. Aspect data alone are inadequate
for interpreting plant response to soil moisture, temperature, and solar radiation,
especially when a wide range in slope is involved.

Item Type:	Article
NWISRL Publication Number:	0220
Subjects:	Irrigated crops > Grass forage Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:51
Last Modified:	24 Feb 2017 19:34
Item ID:	218
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/218