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8 9  : No. /- ῍,**,῎*+,-./01234&536789:;<=>?'@A@ABC89DEF<3GH3I3GJKLMNOPQIR?'MSTUVWXῌYZ23I[\G89]3GH3?'4^23_ῌ]3`L`abIc`dR?'e( fgfghJijkdRlm<0nGoL)῎῍῏ῌ ῌFAO (+331) State of the World’s Forest, +331. Food and Agriculture
Organization, Rome, Italy. ῌFolster, S. and Khanna, P.K. (+331) Dynamics ofnutrient supply in plantation soils. In Management of soil, nutrient and water intropical plantation forests. Ed. Nambiar, E.K.S. and Brown, A.G., p. -0/, ACIAR,
Canberra. · Golley, F.B. (+32-) Nutrient cycling and nutrient conservation. In F.B.
Golley ed. “Tropical Rain Forest Ecosystems”, pp. +.2, +/,, Elsevier, Amste.
ῌJordan, C.F. (+32/) Nutrient Cycling in Tropical Forest Ecosystems, pp. -+, -1ῌ.-,+*.ῌ+*1, +,1ῌ+,2, John Wiley & Sons, Ltd., Chichester. ῌHirai (+331) Soils anddistribution of Dryobalanops aromatica and D. lanceorata in mixed dipterocarp
forests.A case study at Lamibir Hill National Park, Sarawak, Malaysia, Tropics, 1: ,+ῌ--. ῌ+33.
  !"#$% & ,3 : .0ῌ/. ῌOhta, S. (+33* a) Inﬂuence of deforestation on
the soils of the Pantabangan area, Central Luzon, the Philippins. Soil Sci. Plant
Nutr., -0 : /0+ῌ/1-. · Ohta, S. (+33* b) Initial changes associated with a#orestation
with Acacia auriculiformis and Pinus kesiya in denuded grassland of the
Pnatabangan area, Central Luzon, the Philippins. Soil Sci. Plant Nutr., -0 : 0--ῌ0.-.
ῌOhta, S. and E#endi, S. (+33, a) Ultisols of “Lowland Dipterocarp Forest” in East
Kalimantan, Indonesia. I. Morphology and physical properties. Soil Sci. Plant Nutr.,-2 : +31ῌ,*0. ῌOhta, S. and E#endi, S. (+33, b) Ultisols of “Lowland Dipterocarp
Forest” in East Kalimantan, Indonesia. II. Status of carbon, nitrogen, and phosphorous. Soil Sci. Plant Nutr., -2 : ,*1ῌ,+0. ῌOhta, S., E#endi, S., Tanaka, N. and Miura,
S. (+33-) Ultisols of “Lowland Dipterocarp Forest” in East Kalimantan, Indonesia. III.
Clay minerals, free Oxides and exchangeable cations. Soil Sci. Plant Nutr., -3 : +ῌ+,.
ῌOhta, S., Morisada, K., Tanaka, N., Kiyono, Y. and E#endi, S. (,***) Are soils in
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