The Soils of the Philippines

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As an archipelago of more than 7.100 islands, the Philippines is blessed with a natural diversity of soil resources. The task of configuring these soil resources, classifying the soils on the basis of its natural history, assessing it's agricultural potential in terms of suitability to economically important crops, and productivity for sustainable production-falls on the Bureau of Soils and Water Management. The soil classification of Philippines was based on the USDA Soil Taxonomy system. Based on the Soil Map of the Philippines (1993) at 1 : 1,000,000 scale, eight soil monoliths representing seven soil orders were collected in November to December, 1999 by two teams of technical staff form Soil Survey Division and the Agricultural Land Management and Evaluation Division of the Bureau of Soils and Water Management (BSWM) to show the representative profiles of the major soil orders. The soil peel monoliths were collected from the following areas : for Entisois which are recently formed soils-Porac, Pampanga; for Inceptisols which are embryonic soils of few diagnostic features-Famy, Laguna; for Altisols which are high-base status soils-Bustos, Bulacan; for Ultisols which are low base status forest soils-Tanay, Rizal and Mataybalay, Bukidnon; for Oxisols which are the sesquioxide-rich, highly weathered soils of the intertropical region-Clave, Surigao del Sur; for Vertisols which are the shrinking and swelling dark clay soils-San Leonardo, Nueva Ecija; and for Andisols which are the volcanic ash soils-Naga, Camgrines Sur. The soil peel monolith collection modified the presently used direct preparation of soil monolith.
2002-03-31

The Soils of the Philippines

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