Vegetation Productivity/Stability and Other Possible Ecological Invariant Relationships Demonstrated in a Microplot Multispecies Pasture Sward

Table 11

Mean percentage proportions of biomass and density of five species observed and modeled with fitted functions for growth and mortality only and for particle packing models and of allowance for conformity requirements.

Species	Biomass					Density					EMS
	A	B	D	G	J	A	B	D	G	J
Observed (4 harvests mean)	40	14	11	5	1	10	12	11	8	9
Growth and mortality only	39	15	11	2	2	10	12	11	6	10	5.3
Packing models alone
Self-thin	33	23	11	3	<1	10	10	9	11	10	25.8
High large	27	25	12	4	<1	13	12	12	9	7	32.9
Regular	64	16	3	<1	<1	1	2	6	6	34	97.5
Both
Log/lin (22%)	39	15	8	3	3	13	13	7	5	12	9.0
Self-thin (18%)	42	20	11	2	1	16	14	14	8	9	24.4
High large (8%)	40	16	11	2	2	12	11	12	5	11	12.5
Regular (8%)	41	17	10	2	2	12	11	11	7	10	8.2