KAJIAN KEPELBAGAIAN DAN EKOLOGI RUMPAI DI KAWASAN HUTAN PAYA SEMENANJUNG MALAYSIA
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Date
2001-04
Authors
MANSOR, ASYRAF
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Abstract
The intrusions of weedy and exotic species into disturbed and undisturbed peat swamp
forests can cause a major problem which need proper attention. The study on the
diversity and ecology of weeds in 20 swamp forests of Peninsula Malaysia has found
that the agricultural areas on reclaimed peat swamps have the highest diversity and
composition of weedy species compared with other types of peatland forests. A total of
54 families, which comprising of 97 genera dan 132 species have been recorded from
ten peat swamps and ten freshwater swamps. Broad-leaves weeds are the most dominant
type of weedy species recorded with 33 families, 54 genera and 69 species. Clidermia
hirta and Melastoma malabathricum (Melastomataceae) are the most dominant species.
in tenn of their presence at all study sites. Three noxious aquatic weeds, Salvinia
molesta, Hydrilla verticillata and Lemna perpusilla have been recorded in peat swamp
and fresh water swamp areas. The intrusion of the most noxious semi aquatic weed,
Mimosa pigra in two sites of peat swamps and one site of freshwater swamp have
shown that the distrubution of this species is still under controlled. However continous
monitoring should be conducted to ensure that this particular species will not poses a
threat to the population of endemic species and also will not spread to other areas. The
comparision between peat swamp forests and freshwater swamps has shown that
freshwater swamps harbour more weedy species number (135 species) than the peat
swamp areas. The Clustering and Principle Component Analysis revealed the similarity
of types, sources and phase of disturbances between the study sites based on presences
and also distribution of weedy species in the study locations.
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Keywords
EKOLOGI RUMPAI , HUTAN PAYA