Characteristics and Formation of so-called Red-Yellow Podzolic Soils in the Humid Tropics (Sarawak-Malaysia) J.P, Andriesse Characteristics and Formation of so-called Red-Yellw Podzolic Soils in the Humid Tropics (Sarawak-Malaysia) This thesis will also be published as Communication nr. 66 of the Royal Tropical Institute, Amsterdam Characteristics and Formation of so-called Red^ellow Podzolic Soils in the Humid Tropics (Sarawak-Malaysia) Proefschrift ter verkrijging van de graad van doctor in de Wiskunde en Natuur- wetenschappen aan de Rijksuniversiteit te Utrecht, op gezag van de Rector Magnificus Prof. Dr. Sj. Groenman, volgens besluit van het College van Dekanen in het openbaar te verdedigen op 8 decem- ber 1975 des namiddags te 4.15 uur door Jacobus Pieter Andriesse geboren op 28 maart 1929 te Middelburg Scanned from original by ISRIC - World Soil Information, as ICSU World Data Centre for Soils. The purpose is to make a safe depository for endangered documents and to make the accrued information available for consultation, following Fair Use' Guidelines. Every effort is taken to respect Copyright of the materials within the archives where the identification of the .Copyright holder is clear and, where feasible, to contact the originators. For questions please contact
[email protected] indicating the item reference number concerned. Promotores: Prof.Dr.Ir. L.J. Pons, Landbouwhogeschool, Wageningen Prof.Dr. R.D. Schuiling Dit proefschrift kwam in zijn volledigheid tot stand onder leiding van Prof.Dr.Ir. F.A. van Baren f Preface Sarawak - a geography of life 'Extensive, almost inaccessible swamps, stretching along the coast, must be passed to reach the hills which in their monotonous repetition of heights and valleys wear down the traveller, but from where the lofty mountains beyond beckon to carry on' I dedicate this thesis to the memory of my late parents who through their efforts enabled me to receive the basic education which opened the door for my professional career, but who through their premature decease could not witness the results of their labour.