Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model
Predicting the impact of land cover and climate change on hydrologic responses using modeling tools are essential in understanding the movement and pattern of hydrologic processes within the watershed. The paper provided potential implications of land conversions and climate change scenarios on the...
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| Format: | Article |
| Language: | English |
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GJESM Publisher
2019-01-01
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| Series: | Global Journal of Environmental Science and Management |
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| Online Access: | https://www.gjesm.net/article_33022_ff375f85268cb84e2525468e8be91294.pdf |
| _version_ | 1818448065083736064 |
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| author | R.C.C. Puno G.R. Puno B.A.M. Talisay |
| author_facet | R.C.C. Puno G.R. Puno B.A.M. Talisay |
| author_sort | R.C.C. Puno |
| collection | DOAJ |
| description | Predicting the impact of land cover and climate change on hydrologic responses using modeling tools are essential in understanding the movement and pattern of hydrologic processes within the watershed. The paper provided potential implications of land conversions and climate change scenarios on the hydrologic processes of Muleta watershed using soil and water assessment tool model. Model inputs used include interferometric synthetic aperture radar-digital elevation model, 2016 land cover map, soil map, meteorological and hydrologic data. The model was calibrated using appropriate statistical parameters (R<sup>2</sup>=0.80, NS=0.80 and RSR=0.45). Model validation using observed streamflow with the same statistical parameters (R<sup>2</sup> = 0.79, NS = 0.67 and RSR = 0.57) showed that the result was statistically acceptable. The model provided potential implications of land conversions and climate change adversely affecting hydrologic processes of critical watersheds. Climate change projections with a 13% decrease in rainfall directly influenced the decrease in hydrologic processes. Meanwhile, urbanization had influenced the increase in surface runoff, evapotranspiration, and baseflow. The increase of forest vegetation resulted in a minimal decrease in baseflow and surface runoff. The watershed hydrologic processes were influenced by changes in land cover and climate. Results of this study are useful by the localities and policy makers in coming up with a more informed decision relative to the issues and concern on hydrological responses in the uplands. |
| first_indexed | 2024-12-14T20:13:35Z |
| format | Article |
| id | doaj.art-ca9fb8a3296848c1891efd265db693d9 |
| institution | Directory Open Access Journal |
| issn | 2383-3572 2383-3866 |
| language | English |
| last_indexed | 2024-12-14T20:13:35Z |
| publishDate | 2019-01-01 |
| publisher | GJESM Publisher |
| record_format | Article |
| series | Global Journal of Environmental Science and Management |
| spelling | doaj.art-ca9fb8a3296848c1891efd265db693d92022-12-21T22:48:54ZengGJESM PublisherGlobal Journal of Environmental Science and Management2383-35722383-38662019-01-0151718210.22034/gjesm.2019.01.0633022Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool modelR.C.C. Puno0G.R. Puno1B.A.M. Talisay2GeoSafer Northern Mindanao/ Cotabato Project, College of Forestry and Environmental Science, Central Mindanao University, Musuan, Maramag 8710, Bukidnon, PhilippinesGeoSafer Northern Mindanao/ Cotabato Project, College of Forestry and Environmental Science, Central Mindanao University, Musuan, Maramag 8710, Bukidnon, PhilippinesGeoSafer Northern Mindanao/ Cotabato Project, College of Forestry and Environmental Science, Central Mindanao University, Musuan, Maramag 8710, Bukidnon, PhilippinesPredicting the impact of land cover and climate change on hydrologic responses using modeling tools are essential in understanding the movement and pattern of hydrologic processes within the watershed. The paper provided potential implications of land conversions and climate change scenarios on the hydrologic processes of Muleta watershed using soil and water assessment tool model. Model inputs used include interferometric synthetic aperture radar-digital elevation model, 2016 land cover map, soil map, meteorological and hydrologic data. The model was calibrated using appropriate statistical parameters (R<sup>2</sup>=0.80, NS=0.80 and RSR=0.45). Model validation using observed streamflow with the same statistical parameters (R<sup>2</sup> = 0.79, NS = 0.67 and RSR = 0.57) showed that the result was statistically acceptable. The model provided potential implications of land conversions and climate change adversely affecting hydrologic processes of critical watersheds. Climate change projections with a 13% decrease in rainfall directly influenced the decrease in hydrologic processes. Meanwhile, urbanization had influenced the increase in surface runoff, evapotranspiration, and baseflow. The increase of forest vegetation resulted in a minimal decrease in baseflow and surface runoff. The watershed hydrologic processes were influenced by changes in land cover and climate. Results of this study are useful by the localities and policy makers in coming up with a more informed decision relative to the issues and concern on hydrological responses in the uplands.https://www.gjesm.net/article_33022_ff375f85268cb84e2525468e8be91294.pdfHydrologic modelHydrologic processesScenario analysisStreamflowWatershed modeling |
| spellingShingle | R.C.C. Puno G.R. Puno B.A.M. Talisay Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model Global Journal of Environmental Science and Management Hydrologic model Hydrologic processes Scenario analysis Streamflow Watershed modeling |
| title | Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model |
| title_full | Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model |
| title_fullStr | Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model |
| title_full_unstemmed | Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model |
| title_short | Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model |
| title_sort | hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model |
| topic | Hydrologic model Hydrologic processes Scenario analysis Streamflow Watershed modeling |
| url | https://www.gjesm.net/article_33022_ff375f85268cb84e2525468e8be91294.pdf |
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