Publications

2018

Bulked gold, riverine trade, hiking trails, and WorldView2 satellite remote sensing in Northwestern Luzon: The Angaqui network

By Canilao, Michael Armand P.

Abstract:

This paper is based on a case study of the Angaqui gold trade network in Northwestern Luzon during the Early Historical to Historical Period (10th to early 20th c). Multiple data sources including GIS predictive modelling and remote sensing through high-resolution and multispectral WorldView2 satellite imagery, written primary historical and secondary historical sources, indigenous peoples oral tradition, and results of systematic archaeological survey and excavation were integrated in the research to come close to a wholistic view. Availability of the satellite imagery facilitates a more regional and multi-scalar approach to archaeology of the region. Remote sensing has revealed segments of old trails within the network. The written and oral tradition both complement each other when correlated with available archaeological data. Availability of historical visual documentation also provides a means to reconstructing the gold evanescent market encounter in Northwestern Luzon.

2017

Weight of Evidence Geospatial Analysis and Potential Locations of Ancient Gold Mining Settlements in Benguet in the 16th and 18th Centuries

By Canilao, Michael Armand P.

Abstract:

Using the Weight of Evidence method in the analysis of geographic patterns, this paper sought to identify areas with high probability for being ancient settlement locations of small- scale subsistence gold miners in Benguet Province of Northwestern Luzon between the 16th to the 18th centuries. The training points used in this project include 24 known ancient village locations that are based on Spanish missionary accounts in the 18th century. The evidential themes that were used include: 1) distance from gold placer mines, 2) Slope class, and 3) Land-use class. Incidentally, the distance to placer mines is the same as distance to fresh water source for habitation purposes. The resulting response theme or unique conditions map shows areas that may potentially contain archaeological sites. The final map shows areas where there is a high probability of encountering an archaeological site.

2017   Weight of Evidence Geospatial Analysis and Potential Locations of Ancient Gold Mining Settlements in Benguet in the 16th and 18th Centuries in Philippine Journal of Science 146(2): 187-192

WorldView2 satellite imagery in remote sensing a past gold trading trail in Luzon: testing Ethnohistory-based and GIS- based models

By Canilao, Michael Armand P.

Abstract:

This article examines the application of image enhancement techniques on high resolution and multi-spectral WorldView 2 satellite images in aid of remote sensing a past gold trading trail in Northwestern Luzon that was used from the PreSpanish Contact Period 10th to 16th c and the Spanish Contact Period (17th to 19th c). In delineating the corridor for the research, several ethnohistorical accounts were followed as interlocutors. The article posits that segments of the Aringay-Tonglo-Balatok gold trail are still visible on the landscape while other segments may have been converted to contemporary farm-to-market roads. Identification of the segments was made possible by application of image enhancement techniques on WorldView2 satellite imagery including resolution merge using Brovey transform, unsupervised classification using a fusion of built-up index and vegetation index. Satellite band combination for mining operations (yellow-NIR1-red edge), modified false color Infrared (NIR1-green-blue), and soils and constructions (red-blue-yellow) have also been of immense utility.

2017   WorldView2 satellite imagery in remote sensing a past gold trading trail in Luzon: testing Ethnohistory-based and GIS- based models, in Journal of Archaeological Science- Reports 12C: 363-377

Predictive Model of the Balatok- Tonglo- Aringay Gold Trade Trail in Southwestern Cordillera [Research Note]

By Canilao, Michael Armand P.

Abstract:

Using the Least Cost Path method in raster GIS analysis, a predictive model was created to estimate the location of an ancient gold trail connecting the Balatok/ Acupan mines with Tonglo gold bulking center and Aringay coastal settlement within Benguet and La Union Provinces. To derive the model, ASTER global digital elevation model was used in tandem with WorldView2 multispectral and high resolution imagery. The paper shows that GIS and Remote Sensing methods immensely aid in delimiting the research study area in the search for trails thereby resulting to efficient targeting of time and resources for second order excavations.

2017   Predictive Model of the Balatok- Tonglo- Aringay Gold Trade Trail in Southwestern Cordillera [Research Note], in Philippine Journal of Science 146(1): 81-84

When Exclusion Includes: Democratic and Cosmopolitan Engagements in Contending Self- determination Struggles

By Canuday, Jose Jowel P.

Canuday, Jose Jowel (2017) "When Exclusion Includes: Democratic and Cosmopolitan Engagements in Contending Self- determination Struggles", Philippine Sociological Review, 65 103-131.

Citizen Participation and Decentralization in the Philippines

By Porio, Emma E.

This chapter appears in Citizenship and Democratization in Southeast Asia, edited by W. Berenschot, H.S. Nordholt, and L. Bakker (published by Brill Online)

Making an Identity out of Diversity: Horacio de la Costa’s Interpretation of a Process

By Zialcita, Fernando N.

‘Making an Identity out of Diversity: Horacio de la Costa’s Interpretation of a Process’. In: Soledad REYES, ed. Reading Horacio de la Costa, SJ: Views from the 21st century. Quezon City: Ateneo de Manila University Press, 2017, pp. 157–86.

Uncovering Changing Prescriptions and Practices Around Organic Agriculture in Metro Manila, the Philippines

By Saloma-Akpedonu, Czarina

AuthorsMarlyne Sahakian, Tiphaine Leuzinger and Czarina Saloma

Abstract:

Through the lens of social practice theories, we consider the emergence of organic food in the Philippines and relate this to sustainable food production and consumption. In particular, we analyze the various practices of groups engaged in “organic” food production and consumption in the capital region, Metro Manila—in a country that has a vibrant organic agriculture movement and which has recently introduced a national law promoting organic food. Using qualitative data, we assess the development of new prescriptions or guidelines and the tensions that arise between prescriptions and public policies. We argue that, as people take on new competencies and meanings in relation to organic produce, social inequalities among consumers are highlighted, affecting the trajectories of organic food.

KEYWORDS: Metro Manilaorganic foodprescriptionssocial practicesthe Philippines