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Environmental Complex in relation to plant growth and distribution (plant…
Environmental Complex in relation to plant growth and distribution
Metadata
W.D. Billings
The Quarterly Review of Biology
1952
plant growth and distribution
influenced by
right time
maximum tolerance
minimum requirement
limiting factor
reaction
trigger factor
compensation
one factor
for another
environmental extrems
growth and reproduction
ecotypes
biotypes
physical factors
distribution
critical stages
germination
flowering
fruiting
governed by
interaction of
gene mechanism
environment
vegetation as indicator
whole environment
known tolerances of characteristics
statistical florestic methods
physical environments
factors
light
water
elements
compounds
heat
complexity
break into factors
arbitrarily
study effect
chalenge
interrelation
groups of factors
subdivide
insoluble mathematical sense
dimension
time
Theory's
Liebig's Law
minimum requirements
most critical year
climatic cycle
most critical season
Good's theory
exist and reproduce
definite range
climatic
edaphic
tolerance
external conditions
few data available
lack of fundamental information
Cain
approximate mathematical
v = quantitative property of vegetation
v = f(cl, p, r, o, t)
V = plant comunity
V = f(cl, p, r, o, t)
focus on single variable
v = f(p)cl, r, o, t
V = f(p)cl, r, o, t
mathematical independent
biological dependent
simplification
five large factors
climate cl
parent material p
organism o
relief r
time t