Geo-Based Assessment of Vegetation Health Related to Agroecological Practices in the Southeast of Togo
In the context of climate change, the need to contribute to achieving Sustainable Development Goal (SDG) 2 is no longer in doubt, especially in sub-Saharan Africa. In this study of the landscape within 10 km of the Donomadé model farm, southeastern Togo, researchers sought to assess vegetation healt...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/16/9106 |
| _version_ | 1827730557638803456 |
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| author | Fousseni Folega Wouyo Atakpama Hodabalo Pereki Badabaté Diwediga Ivan Pontin Novotny Anne Dray Claude Garcia Kperkouma Wala Komlan Batawila Kofi Akpagana |
| author_facet | Fousseni Folega Wouyo Atakpama Hodabalo Pereki Badabaté Diwediga Ivan Pontin Novotny Anne Dray Claude Garcia Kperkouma Wala Komlan Batawila Kofi Akpagana |
| author_sort | Fousseni Folega |
| collection | DOAJ |
| description | In the context of climate change, the need to contribute to achieving Sustainable Development Goal (SDG) 2 is no longer in doubt, especially in sub-Saharan Africa. In this study of the landscape within 10 km of the Donomadé model farm, southeastern Togo, researchers sought to assess vegetation health in ecosystems and agrosystems, including their capacity to produce biomass for agroecological practices. Sentinel-2 sensor data from 2015, 2017, 2020, and 2022 were preprocessed and used to calculate the normalized vegetation fire ratio index (NBR), the vegetation fire severity index (dNBR), and CASA-SEBAL models. From these different analyses, it was found that vegetation stress increased across the landscape depending on the year of the time series. The research estimated that 9952.215 ha, 10,397.43 ha, and 9854.90 ha were highly stressed in 2015, 2017, and 2020, respectively. Analysis of the level of interannual severity revealed the existence of highly photosynthetic areas that had experienced stress. These areas, which were likely to have been subjected to agricultural practices, were estimated to be 8704.871 ha (dNBR2017–2015), 8253.17 ha (dNBR2020–2017), and 7513.93 ha (dNBR2022–2020). In 2022, the total available biomass estimated by remote sensing was 3,741,715 ± 119.26 kgC/ha/y. The annual average was 3401.55 ± 119.26 kgC/ha/y. In contrast, the total area of healthy vegetation was estimated to be 4594.43 ha, 4301.30 ha, and 4320.85 ha, in 2015, 2017, and 2022, respectively. The acceptance threshold of the net primary productivity (NPP) of the study area was 96%. The coefficient of skewness (0.81 ± 0.073) indicated a mosaic landscape. Productive and functional ecosystem components were present, but these were highly dispersed. These findings suggest a great opportunity to promote agroecological practices. Mulching may be an excellent technique for enhancing overall ecosystem services as targeted by the SDGs, by means of reconversion of plant biomass consumed by vegetation fires or slash-and-burn agricultural practices. |
| first_indexed | 2024-03-11T00:09:34Z |
| format | Article |
| id | doaj.art-62d4703cd44d4556b5fd2e16cf757691 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T00:09:34Z |
| publishDate | 2023-08-01 |
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| series | Applied Sciences |
| spelling | doaj.art-62d4703cd44d4556b5fd2e16cf7576912023-11-19T00:04:25ZengMDPI AGApplied Sciences2076-34172023-08-011316910610.3390/app13169106Geo-Based Assessment of Vegetation Health Related to Agroecological Practices in the Southeast of TogoFousseni Folega0Wouyo Atakpama1Hodabalo Pereki2Badabaté Diwediga3Ivan Pontin Novotny4Anne Dray5Claude Garcia6Kperkouma Wala7Komlan Batawila8Kofi Akpagana9Laboratory of Botany and Plant Ecology, Department of Botany, Faculty of Sciences, University of Lomé, Lomé 01 BP 1515, TogoLaboratory of Botany and Plant Ecology, Department of Botany, Faculty of Sciences, University of Lomé, Lomé 01 BP 1515, TogoLaboratory of Botany and Plant Ecology, Department of Botany, Faculty of Sciences, University of Lomé, Lomé 01 BP 1515, TogoLaboratory of Botany and Plant Ecology, Department of Botany, Faculty of Sciences, University of Lomé, Lomé 01 BP 1515, TogoForest Management and Development, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zürich, 8092 Zürich, SwitzerlandForest Management and Development, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zürich, 8092 Zürich, SwitzerlandForest Management and Development, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zürich, 8092 Zürich, SwitzerlandLaboratory of Botany and Plant Ecology, Department of Botany, Faculty of Sciences, University of Lomé, Lomé 01 BP 1515, TogoLaboratory of Botany and Plant Ecology, Department of Botany, Faculty of Sciences, University of Lomé, Lomé 01 BP 1515, TogoLaboratory of Botany and Plant Ecology, Department of Botany, Faculty of Sciences, University of Lomé, Lomé 01 BP 1515, TogoIn the context of climate change, the need to contribute to achieving Sustainable Development Goal (SDG) 2 is no longer in doubt, especially in sub-Saharan Africa. In this study of the landscape within 10 km of the Donomadé model farm, southeastern Togo, researchers sought to assess vegetation health in ecosystems and agrosystems, including their capacity to produce biomass for agroecological practices. Sentinel-2 sensor data from 2015, 2017, 2020, and 2022 were preprocessed and used to calculate the normalized vegetation fire ratio index (NBR), the vegetation fire severity index (dNBR), and CASA-SEBAL models. From these different analyses, it was found that vegetation stress increased across the landscape depending on the year of the time series. The research estimated that 9952.215 ha, 10,397.43 ha, and 9854.90 ha were highly stressed in 2015, 2017, and 2020, respectively. Analysis of the level of interannual severity revealed the existence of highly photosynthetic areas that had experienced stress. These areas, which were likely to have been subjected to agricultural practices, were estimated to be 8704.871 ha (dNBR2017–2015), 8253.17 ha (dNBR2020–2017), and 7513.93 ha (dNBR2022–2020). In 2022, the total available biomass estimated by remote sensing was 3,741,715 ± 119.26 kgC/ha/y. The annual average was 3401.55 ± 119.26 kgC/ha/y. In contrast, the total area of healthy vegetation was estimated to be 4594.43 ha, 4301.30 ha, and 4320.85 ha, in 2015, 2017, and 2022, respectively. The acceptance threshold of the net primary productivity (NPP) of the study area was 96%. The coefficient of skewness (0.81 ± 0.073) indicated a mosaic landscape. Productive and functional ecosystem components were present, but these were highly dispersed. These findings suggest a great opportunity to promote agroecological practices. Mulching may be an excellent technique for enhancing overall ecosystem services as targeted by the SDGs, by means of reconversion of plant biomass consumed by vegetation fires or slash-and-burn agricultural practices.https://www.mdpi.com/2076-3417/13/16/9106biomassecophysiologyGIS remote sensingagroecologyTogo |
| spellingShingle | Fousseni Folega Wouyo Atakpama Hodabalo Pereki Badabaté Diwediga Ivan Pontin Novotny Anne Dray Claude Garcia Kperkouma Wala Komlan Batawila Kofi Akpagana Geo-Based Assessment of Vegetation Health Related to Agroecological Practices in the Southeast of Togo Applied Sciences biomass ecophysiology GIS remote sensing agroecology Togo |
| title | Geo-Based Assessment of Vegetation Health Related to Agroecological Practices in the Southeast of Togo |
| title_full | Geo-Based Assessment of Vegetation Health Related to Agroecological Practices in the Southeast of Togo |
| title_fullStr | Geo-Based Assessment of Vegetation Health Related to Agroecological Practices in the Southeast of Togo |
| title_full_unstemmed | Geo-Based Assessment of Vegetation Health Related to Agroecological Practices in the Southeast of Togo |
| title_short | Geo-Based Assessment of Vegetation Health Related to Agroecological Practices in the Southeast of Togo |
| title_sort | geo based assessment of vegetation health related to agroecological practices in the southeast of togo |
| topic | biomass ecophysiology GIS remote sensing agroecology Togo |
| url | https://www.mdpi.com/2076-3417/13/16/9106 |
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