Analisa Vegetasi Jenis Pohon pada Kawasan Hutan di Kampung Tablanusu Distrik Depapre Kabupaten Jayapura
Abstract: Tropical rain forest
of Papua is very diverse in its Tropical rain forest of Papua is very diverse
in its floristic composition. Increasing human population cause the loss of
forest for farming, urban areas or other human activities which cause deforestation.
The objective of this study was to obtain the description of composition and
structure as well as ecological value of forest area at Tablanusu Village,
District of Depapre. Study was carried out from January-June 2009. Quadrat plot
(50 x 50 m) were placed at 30 m asl and 200 m asl. Index of Shannon-Wieners was
used to determine the level of species diversity and Index of similarity to
indicate degree of similarity of composition between two different altitudes.
Result of the study revealed that at 30 m asl occupied by 25 species that
grouped into 18 families of trees (O > 10 cm) with total 146 trees., sapling
(O 2 - 10 cm) was consisted of 26 species of 15 families and 74 individuals.
While at 200 m asl, there were 18 species of tress (O >10 cm) which grouped
into 13 families with 93 individuals, 23 species of sapling (O 2 - 10 cm) that
grouped into 20 families with total number of individu was 82. The value of
similarity indices of the tree at 30 m asl and 200 m asl was 0% (no
similarity), on the other hand for sapling its value showed 12,24%. It means
that there was a differences in the species composition on both areas.
Futhermore, the species wich has highest important value at 30 m aslwas cocos
nucifera L. (63,84%) for trees and Kleinhovia hospita L. (37,61%) for sapling.
While at 200 m asl, this highest value for trees was found in Instia bijuga OK.
(81,67%) and Mastixiodendron pachyclados K.Sch (41,31%) for sapling. Eventhough
the regeneration procees in those forest was slow, but it has high ecological
value, for example as water suply, preventing erotion, habitat of fauna and
maintaining the microclimate.
Penulis: Rosye H.R. Tanjung,
Supeni Sufaati, Lucia Runggeari
Kode Jurnal: jpbiologidd100048
