called dry Mixed-Evergreen Forests or Moist Deciduous Forests. These
forests are the most widespread forests in the island, that characterize
the lowland dry zone at elevations less than 600m where average
rainfall is only 1400- 2000 mm with a distinct dry season of three
to six months between April/May and September.
are the climax communities of the Dry Zone and consist of two poorly
defined layers of evergreen and semi deciduous species of trees.
The canopy stratum reaches to about 18 meters with some rare , mostly
semi deciduous emergents , which reach to about 25m.. The sub canopy
is dominated by Weera( Drypetes sepiaria)
Monsoon forests provide catchment protection to ancient and modern
irrigation tanks in the Dry Zone.
FOR MONSOON FORESRTS
Indian Cuckoo (Cuculus micropterus)
Satinwood (Chloroxylon swietenia)
Leopard (Panthera pardus)
Crested serpent Eagle (spilornis cheela)
Welang (Pterospermum canescens)
Blue Faced Malkoha (Phaenicophaeus viridirostris)
Greater Racket-tailed Drongo (Dicrurus Paradiseus)
consist of economically important and some, valuable species of
timber, like Satinwood ,(Chloro xylon swietenia),Ebony (Diospyros
ebenum),Trincomalee Wood (Berrya cordifolia )., Palu (Manilkara
hexandra) and Ceylon Oak (Schleichera oleosa). However, the number
of endemic species in this eco system is markedly lower than that
in the Wet Zone.
There are around
244,000 ha of Monsoon Forest left in large patches in the dry Zone.Hurulu
Forest reserve, Wasgomuwa, Wilpaththu and Yala National parks ,
as well as Ritigala Strict Nature Reserve.
this forest type is under threat from Slash and Burn Agriculture
(Chena cultivation), encroachments and illicit felling of timber.
In fact some species of timber, like satinwood and Ebony are considered
to be over exploited.