Land-use suitability assessment and land capability classification in Ibulao watershed, Philippines.

Persistent Link:
http://hdl.handle.net/10150/184989
Title:
Land-use suitability assessment and land capability classification in Ibulao watershed, Philippines.
Author:
Cruz, Rex Victor Oafallas.
Issue Date:
1990
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A geographically-based framework for landuse suitability assessment and land capability classification in Ibulao watershed, Philippines was developed and used in this study. Landuse suitability assessment was based primarily on soil erosion, the results of which were compared with the outcome of suitability assessments based on two land classification systems in the Philippines. The Ibulao watershed was subdivided into 10-ha cells, and each cell was independently evaluated with the aid of a geographic information system called MAP. The soil erosion rates for each cell were estimated using the MUSLE. The surface runoff and peak runoff rates were simulated using an infiltration-kinematic routing model, an event-based stochastic rainfall duration model, and the CREAMS model. The land capability classification was based on erosion index representing the inherent soil erodibility of a cell computed on the basis of runoff erosivity factor, soil erodibility factor, and the slope length-gradient factor. The results of capability classification were used to identify the different alternative uses of any cell in the watershed. The framework described in this study for landuse suitability assessment and land capability classification illustrated potentials for applications to the management and allocation of land resources in the Philippines. An erosion-based landuse assessment and land capability classification appears to be a better alternative to a slope-based system as far as the following are concerned: (1) identification of landuses which would not jeopardize the long term productivity and stability of an area; (2) a more accurate and meaningful land capability description and classification; and (3) making more lands available for various alternative uses by using criteria such as soil erosion which can easily be manipulated.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Watershed management -- Philippines
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Renewable Natural Resources; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Ffolliott, P.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleLand-use suitability assessment and land capability classification in Ibulao watershed, Philippines.en_US
dc.creatorCruz, Rex Victor Oafallas.en_US
dc.contributor.authorCruz, Rex Victor Oafallas.en_US
dc.date.issued1990en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractA geographically-based framework for landuse suitability assessment and land capability classification in Ibulao watershed, Philippines was developed and used in this study. Landuse suitability assessment was based primarily on soil erosion, the results of which were compared with the outcome of suitability assessments based on two land classification systems in the Philippines. The Ibulao watershed was subdivided into 10-ha cells, and each cell was independently evaluated with the aid of a geographic information system called MAP. The soil erosion rates for each cell were estimated using the MUSLE. The surface runoff and peak runoff rates were simulated using an infiltration-kinematic routing model, an event-based stochastic rainfall duration model, and the CREAMS model. The land capability classification was based on erosion index representing the inherent soil erodibility of a cell computed on the basis of runoff erosivity factor, soil erodibility factor, and the slope length-gradient factor. The results of capability classification were used to identify the different alternative uses of any cell in the watershed. The framework described in this study for landuse suitability assessment and land capability classification illustrated potentials for applications to the management and allocation of land resources in the Philippines. An erosion-based landuse assessment and land capability classification appears to be a better alternative to a slope-based system as far as the following are concerned: (1) identification of landuses which would not jeopardize the long term productivity and stability of an area; (2) a more accurate and meaningful land capability description and classification; and (3) making more lands available for various alternative uses by using criteria such as soil erosion which can easily be manipulated.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectWatershed management -- Philippinesen_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorFfolliott, P.en_US
dc.contributor.committeememberFogel, M.en_US
dc.contributor.committeememberGuertin, P.en_US
dc.contributor.committeememberHendricks, D.en_US
dc.contributor.committeememberPost, D.en_US
dc.identifier.proquest9024501en_US
dc.identifier.oclc703887469en_US
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