Conference Presentations by June Anne Caladcad
IEEE Asia-Pacific Conference on Geoscience, Electronics and Remote Sensing Technology (AGERS) , 2023
Cacao (Theobroma cacao L.) is widely cultivated in the cacao belt-l0 to 20 degrees north and sout... more Cacao (Theobroma cacao L.) is widely cultivated in the cacao belt-l0 to 20 degrees north and south of the equator-where the Philippines is situated. Nonetheless, the country suffers from low cacao yield and imports cacao products. The country's cacao roadmap for 2017–2022 identified environmental stress factors such as light intensity, relative humidity, temperature, rainfall, soil quality, flooding, shade, and insect pests and diseases. Conventionally, cacao farmers apply the ground survey method in detecting stress factors, which is prone to human error. This study assessed a cacao farm's stress level through its top environmental stress factors by applying an advanced monitoring system. A combination of the hierarchical modeling in AHP and the GIS method is applied on a specific five-hectare cacao farm to manage the decreasing cacao production. The area boundary was extracted through drone mapping and using an AHP pairwise matrix for an expert ranking of the identified stress factors. In addition, a Sentinel-2 image was used to calculate the normalized difference vegetation index (NDVI) to classify identified areas as healthy, stressed, and very stressed. The NDVI map showed that Zone 3 has the highest average stress level among the four zones. The top five stress factors are insect pests and diseases, floods, soil quality, temperature, and rainfall. Policy implications are derived from these results to mitigate the effects of these stress factors.
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Conference Presentations by June Anne Caladcad