Phenology parameters

PHENOLOGY <phenology></phenology>

Variable	Units	Description
retained_carbon_fraction	fraction ranging from 0-1.	Fraction of carbon translocated from leaf to storage before leaf scenecence
theta_crit	fraction ranging from 0-1.	This is a soil water threshold. When soil water (as a fraction of saturation) sinks below this threshold, drought deciduous plants drop their leaves. When soil water (as a fraction of saturation) rises above this threshold, drought deciduous plants flush their leaves.
dl_tr	minutes	daylength threshold used in Botta et al. phenology scheme
st_tr1	K	soil temperature threshold used in Botta et al. phenology scheme
st_tr2	K	soil temperature threshold used in Botta et al. phenology scheme
phen_a	days	parameter used to determine timing of leaf flush in Botta et al. phenology scheme.
phen_b	days	parameter used to determine timing of leaf flush in Botta et al. phenology scheme.
phen_c	1/days	parameter used to determine timing of leaf flush in Botta et al. phenology scheme.
iphen_scheme	categorical	Flag specifying which phenology scheme to use. 0 - Botta et al. for cold deciduous. Simple theta_crit threshold for drought deciduous. 1 - Prescribed phenology. 2 - Botta et al. for cold deciduous. Kim et al. for drought deciduous. 3 - Botta et al. for cold deciduous. Kim et al. for drought deciduous and light phenology (not tested).
iphenys1	(year)	If using a prescribed phenology scheme, this is the earliest year for which spring phenology data exists.
iphenysf	(year)	If using a prescribed phenology scheme, this is the latest year for which spring phenology data exists.
iphenyf1	(year)	If using a prescribed phenology scheme, this is the earliest year for which fall phenology data exists.
iphenyff	(year)	If using a prescribed phenology scheme, this is the latest year for which fall phenology data exists.