New Zealand Journal of Agricultural Research abstracts
Constancy in pasture composition? Empirical measurements and mathematical models
D. Scott
AgResearch
P.O. Box 60
Lincoln, New Zealand
Abstract A review of 702 sets of published pasture
data show there is some constancy in the relative contribution of
different species in pasture, with a high linear correlation between
logarithm of percentage contribution and rank of a species. The best
explicit model for mathematical description of pasture composition was
the geometric series. The best of the random models was the pre-emptive
function. The results are discussed in relation to the general theory
of pasture composition and alternative pasture sampling techniques.
Keywords pasture composition; simulation models
A04030; Received 12 April 2004; accepted 9 December 2005; Online publication date 16 May 2006
New Zealand Journal of Agricultural Research, 2006, Vol. 49: 183–190
0028–8233/06/4902–0183 © The Royal Society of New Zealand 2006
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