Interrelationships of Huisache Canopy Cover with Range Forage on the Costal Prairie
Citation
Scifres, C. J., Mutz, J. L., Whitson, R. E., & Drawe, D. L. (1982). Interrelationships of huisache canopy cover with range forage on the coastal prairie. Journal of Range Management, 35(5), 558-562.Publisher
Society for Range ManagementJournal
Journal of Range ManagementDOI
10.2307/3898637Additional Links
https://rangelands.org/Abstract
Grass production was monitored based on seasonal harvests under various canopy covers of huisache on a Coastal Prairie blackland range site during 1978 and 1979. Grass production (Y) was not decreased in 1978, compared to that on essentially brush-free areas, until huisache canopy cover (X) exceeded 30% based on the relationship, the average of Y = 2,346 + 20X - $0.62X^2. Texas wintergrass standing crop apparently increased as huisache canopy cover increased to 25%, and its growth during winter partly compensated for standing crop losses of warm season species during the winter. In 1979, the contribution of the cool-season species was masked by greater production of warm-season species. Consequently, grass production decreased with increasing huisache canopy cover according to the relationship, the average of Y = 4,047 - 14.9X - $0.29X^2. Based on the functional relationship the average of Y = a – b1X-b2X^2, coefficients of determinations (r2) ranged from 0.50 to 0.96 when estimates of annual production of grasses or production for the growing season only were regressed against huisache canopy cover.Type
textArticle
Language
enISSN
0022-409Xae974a485f413a2113503eed53cd6c53
10.2307/3898637