Soil Erosion in a Coastal River Basin: A Case Study from the Philippines

DuBois, Random

     These two sets of factors characteristic of many tropical coastal watersheds form the basis of the research problem: (1) increasing encroachment of upland marginal lands in the presence of ecologically and economically important coastal ecosystems, and (2) the absence of needed information with regard to range and magnitude of impact and the underlying social-economic processes contributing to the conflict. . . . Specific topics . . . examined in the present study are: (1) the nature, significance, and implications of nonsustainable watershed land-use practices on coastal resource-user systems; (2) the perceptions and knowledge of upland and coastal resource users regarding land-use practices and river basin processes that in combination contribute to conflict; (3) the adjustments employed by coastal resource users in response to changing environmental conditions attributable to upstream land-use practices; (4) social forces contributing to existing land-use practices; and (5) selected policies that may be contributing to or mitigating the conflict."
     Owing to the paucity of information and a limited budget, the approach selected for the research was the case study. The location of the study was a small coastal watershed in the Central Visayan island-province of Siquijor in the Philippines. The specific approach entailed two components: (1) the conduct of an environmental assessment an year-long biophysical monitoring program; and (2) the development and use of a survey questionnaire together with a number of special studies designed to examine specific social questions pertaining to land use, environmental perceptions, social dynamics, and policies relevant to intrabasin resource issue conflicts. The information derived from these two components, together with a detailed historical literature review, . . . [provides] the basis for the subsequent integrative analysis and conclusions.