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Coordinated and published by The Grassroots Institute, the Grassroots Journal of Natural Resources (GJNR) is an international journal dedicated to the latest advancements in natural resources throughout the world. The goal of this journal is to provide a platform for scientists, social scientists, policy analysts, managers and practitioners (on all academic and professional levels) all over the world to promote, discuss and share various new issues and developments in different arenas of natural resources.
Liezl Brogada Grefalda*1, Juan Magboo Pulhin2, Josephine Encisa Garcia3, Makoto Inoue4
1College of Forestry and Natural Resources, University of the Philippines Los Baños, Philippines.
Email: lbgrefalda@up.edu.ph ǀ ORCID: https://orcid.org/0000-0002-4658-6305
2College of Forestry and Natural Resources, University of the Philippines Los Baños, Philippines.
Email: jmpulhin@up.edu.ph ǀ ORCID: https://orcid.org/0000-0002-3271-7351
3College of Agriculture and Food Science, University of the Philippines Los Baños, Philippines.
Email: jegarcia4@up.edu.ph ǀ ORCID: https://orcid.org/0000-0002-3604-5310
4School of Human Sciences, Waseda University, Tokorozawa City, Japan.
Email: makinoue@waseda.jp ǀ ORCID: https://orcid.org/0000-0002-6625-7293
*Corresponding author
Grassroots Journal of Natural Resources, 7(2): 301-323. Doi: https://doi.org/10.33002/nr2581.6853.070216
Received: 15 July 2024
Reviewed: 03 August 2024
Provisionally Accepted: 04 August 2024
Revised: 07 August 2024
Finally Accepted: 08 August 2024
Published: 10 August 2024
This study investigates the complex interplay between climate-related hazards and land cover changes in the Dibalo-Pingit-Zibali-Malayat (DPZM) River Watershed of Aurora province, Philippines. Historical typhoon data underscore the region’s vulnerability to extreme weather events, emphasizing the critical need to enhance disaster preparedness and management. Land cover analysis from 1988 to 2020 reveals substantial transformations, driven largely by agricultural expansion at the expense of forest cover. Specifically, closed forest areas decreased by 11% annually from 2010 to 2015, while open forest areas decreased by 31% from 1988 to 2003. Conversely, built-up areas, annual crops, and perennial crops increased by 3%, 9%, and 30%, respectively, reflecting growing human pressures from 1988 to 2003. These land cover changes have intensified watershed degradation, as evidenced by increasing landscape fragmentation and declining mean patch size. Such alterations heighten the watershed susceptibility to natural hazards and hinders its capacity to provide essential ecosystem services. The study underscores the urgency for science-informed watershed management strategies to mitigate climate risks and protect the livelihoods of communities reliant on the DPZM River Watershed. Prioritizing sustainable land use practices, forest restoration, and disaster preparedness is crucial for safeguarding the watershed’s ecological integrity and resilience in the face of ongoing challenges.
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Grefalda, L.B., Pulhin, J.M., Garcia, J.E. and Inoue, M. (2024). Climate Risks and Land Cover Dynamics of the Dibalo-Pingit-Zabali-Malayat River Watershed in Aurora, Philippines. Grassroots Journal of Natural Resources, 7(2): 301-323. Doi: https://doi.org/10.33002/nr2581.6853.070216
Grefalda, L. B., Pulhin, J. M., Garcia, J. E., & Inoue, M. (2024). Climate Risks and Land Cover Dynamics of the Dibalo-Pingit-Zabali-Malayat River Watershed in Aurora, Philippines. Grassroots Journal of Natural Resources, 7(2), 301-323. https://doi.org/10.33002/nr2581.6853.070216
Grefalda L.B., Pulhin J.M., Garcia J.E., Inoue M. Climate Risks and Land Cover Dynamics of the Dibalo-Pingit-Zabali-Malayat River Watershed in Aurora, Philippines. Grassroots Journal of Natural Resources, 2024, 7 (2), 301-323. https://doi.org/10.33002/nr2581.6853.070216
Grefalda, Liezl Brogada, Pulhin, Juan Magboo, Garcia, Josephine Encisa, Inoue, Makoto. 2024. “Climate Risks and Land Cover Dynamics of the Dibalo-Pingit-Zabali-Malayat River Watershed in Aurora, Philippines”. Grassroots Journal of Natural Resources, 7 no. 2: 301-323. https://doi.org/10.33002/nr2581.6853.070216
Grefalda, Liezl Brogada, Juan Magboo Pulhin, Josephine Encisa Garcia and Makoto Inoue. 2024. “Climate Risks and Land Cover Dynamics of the Dibalo-Pingit-Zabali-Malayat River Watershed in Aurora, Philippines”. Grassroots Journal of Natural Resources, 7 (2): 301-323. https://doi.org/10.33002/nr2581.6853.070216
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