Struktur Populasi Alstonia scholaris (L) R.Br di Kawasan Air Terjun Bajuin Tanah Laut
Abstract: Alstonia scholaris (L) R.Br is one useful
plant species in region South Borneo especially in the bajuin waterfall areas. According
to local people,
Alstonia scholaris (L)
R.Br diminishing numbers.
Determining the status
or situation in a habitat can be done by studying the population
structure. It is very important to be done in an effort to perform
against the preservation
of the population.
The purpose of
this research is
to review the
population structure of Alstonia
scholaris (L) R.Br
in the region
of bajuin waterfall
Tanah Laut. The
method used in
this research is survey 10 m x 10 m quadrant for the seeedling, sapling,
pole and tree, systematically on two regions above and
below waterfall each
500 m x
250 m quadrant.
The results showed
that the population
structure of Alstonia scholaris
(L) R.Br in one region there is a number of trees 56 individual/ha, the pole 28
individuals/ha, sapling 16 individuals/ha and
seedling 8 individuals/ha, whereas
the second region
there are number
tree 80 individuals/ha, the pole
52 individuals/ha, sapling 76 individuals/ha and seedling 48 individuasl/ha .
In both regions show a number lot of the adult age group which means the plants
in a state of decline or threated and
obtained a description of the shape of a pyramid population structure shape urn
that is disturbed.
Penulis: Heri Setiono,
Dharmono, Muchyar
Kode Jurnal: jpbiologidd150501
