Perbandingan antara Mahoni Afrika (Khaya anthoteca) dengan Mahoni amerika (Swietenia macrophylla) dan pengeruh tegakan terhadap kondisi lingkungan

African mahogany (K. anthotheca C.DC) and american mahogany (Swietenia macrouhxlla King) trees are exotic species which have good prospect for industrial plantation forest due to the woods can be used for luxurious furniture and attractive plywood. Howevet, the influence of monoculture mahogany plantation to the soil fertility, biodiversity of ground covet, population of insect, microorganism, pest and disease was limited. The purpose of the study was to investigate the growth and wood characteristics of african and american mahogany and its effects to environmental condition. The study was conducted by choosing african and american mahogany stands which have similar age and open area nearby the stands as a control in Cikampek and Pasir Hantap Experimental Forest. The height and stem diameter growth of the trees, the soil fertility, the biodiversity of ground covet, the population of microorganism, pest and disease were compar£d among those two areas. The wood characteristics of both species were identified. The results showed that african mahogany trees grew fastet, had straighter stem and longer stem free from branches than those of american mahogany trees grew fastet, had straighter stem and longer stem free from branches than those of american mahogany trees. The soil pH under african and american mahogany stand tend to be lower than those in open area, either in Cikampek or in Pasir Hantap, but the soil fertility under those three areas were not so different. The biodiversity of ground covet, insect and population of micro organism in open area (236,5 -297,5 million/gram of soil) were higher than those under african (66,5 -127 million/gram of soil) or american mahogany (60,8 -65,8 million/gram of soil) stands. There was no disease attack african and american mahogany trees or seedlings in Cikampek and Pasir Hantap. But natural regeneration seedlings of both species 4,8 percent were attacked by Hypsipyla robusta and 12,9 percent attacked byXyleborussp. in Cikampek, whereas 24,1 percent american mahogany seedlings were attacked by H. robusta pest in Pasir Hantap. The physical and mechanical characteristics of african mahogany woods were similat.

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: .,

Deskripsi Fisik

Buletin Penelitian Hutan : No.635

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Indonesia

ISBN/ISSN

1410-0649

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Perpustakaan R.I. Ardi Koesoema

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