Environmental changes must be initiated by forest harvesting. The harvesting of timber has affected forest ecosystems in various ways which includes degradation, shortage of forest water supply, soil loss and green house gas emission. Selective cutting, clear-cut, fire and burning are major cause...
Kobayashi S.
,
Yarwudhi, C.
,
Suksawang S.
,
[Changes of soil and understory biomass before and after the harvesting of Eucalyptus camaldulensis plantation in Thong Pha Phum, Kanchanaburi, Thailand]
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Changes of soil and understory biomass before and after the harvesting of Eucalyptus camaldulensis plantation in Thong Pha Phum, Kanchanaburi, Thailand
Soil samples from permanent sample plots of natural mixed deciduous, logged-over mixed deciduous and the secondary stands in the tropical seasonal forest were analysed for physical and chemical properties. Bulk density and soil hardness of A-horizon in the natural stand were slightly higher than ...
Yarwudhi, C.
,
Kobayashi, S.
,
Tanaka, N.
,
Suksawang, S.
,
[Soil conditions under natural logged-over and secondary stands of tropical seasonal forest in Thailand]
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Soil conditions under natural logged-over and secondary stands of tropical seasonal forest in Thailand
Dynamics of tree populations were studied from 1992 to 1995 in 4 ha permanent plots placed both in a natural and a disturbed tropical seasonal forest in Mae Klong Watershed Research Station, Kanchanaburi, Western Thailand. In the natural forest, the recruitment, mortality, gain and loss rate in b...
Yarwudhi, C.
,
Kobayashi, S.
,
Kutintara, U.
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Takahashi, M.
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Marrod, D.
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Hirai, K.
,
Eiadtong, W.
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Tanaka, H.
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Nakashizhuka, T.
,
[Structure and community dynamics of a natural and a disturbed tropical seasonal forest in Thailand]
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Structure and community dynamics of a natural and a disturbed tropical seasonal forest in Thailand
The plot for the study on vegetation changes was established in a deforested area of the Maeklong Watershed Research Station, Kanchanaburi, western Thailand. The plot (100 x 400 m2) was divided into four hundred 10 x 10 m2 sub-quadrats. We found six major vegetation types in the sub-quadrats: bam...
Takahashi, M.
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Nakashizuka, T.
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Kobayashi, S.
,
Yarwudhi, C.
,
Kutintara
,
Hirai, K.
,
[Biomass and successional changes in vegetation in a deforested area of Thailand]
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Biomass and successional changes in vegetation in a deforested area of Thailand
The research was carried out at the Forest Industry Organization’s Thongphaphum Plantation in Kanchanaburi province, Thailand. The main objective was to determine the effects of different thinning methods on coppicing ability of 17-year-old teak leading to two canopy levels. Teak stumps were plan...
Thaiutsa, B.
,
Puangchit, L.
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Yarwudhi, C.
,
Wacharinrat, C.
,
Kobayashi, S.
,
[Coppicing ability of teak (Tectona grandis) after thinning]
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Coppicing ability of teak (Tectona grandis) after thinning