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Mapping and Floristic Diversity of the Nakpadjouak Community Forest, Tami Canton, Togo (West Africa)

Natural Resources 2024年第4期15卷 83-105页

作者： Senyo Kossi Ehlui Christian Anthony-Krueger Edinam Kola wouyo atakpam. Alagie Bah Henrik von Wehrden Tchaa Boukpessi West Africa Science Service Center on Climate Change and Adapted Land Use WASCAL University of the Gambia Banjul Gambia Laboratoire de Recherche sur la Dynamique des Milieux et des Socié t&#233s Department of Geography University of Lom&#233 Lome Togo Department of Science Education University of Cape Coast Cape Coast Ghana Laboratoire de Botanique et É cologie V&#233g&#233tale D&#233partement botanique Facult&#233 des sciences Universit&#233 de Lom&#233 Lome Togo West Africa Plant Red List Authority (WAPRLA) IUCN Species Survival Commission Gland Switzerland Center for International Forestry Research and World Agroforestry (CIFOR-ICRAF) Nairobi Kenya Faculty of Sustainability Center of Methods Leuphana University of L&#252neburg L&#252neburg Germany Laboratoire de Recherches Biogé ographiques et d&#8217Etudes Environnementales Department of Geography University of Lome Lome Togo

Since 2015, community forests have been promoted in Togo as an alternative to protect areas from degradation and as a means of contributing to forest landscape restoration. The study focuses on the Nakpadjouak Community Forest (NCF) in Tami (Togo, West Africa) which contributes to community forests sustainable management. It aims in (i) mapping forest ecosystems and analysing their dynamic and (ii) characterizing the floristic diversity of the NCF. The ecosystems were mapped and their dynamic was evaluated based on Google Earth images of 2014 and 2020. Floristic and forestry inventories were carried out using the transect technique in a sample of 20 plots of 50 m × 20 m. The NCF was made up mainly by wooded/shrub savannahs (95.37%) and croplands/fallow (4.63%) in 2014. These two land use types undergone changes over the 6 years prior to 2020. By 2020, the NCF had 3 land use types: wooded/shrub savannahs (77.59%), open forest/wooded savannahs (22.23%), and croplands/fallows (0.18%). A total of 89 plant species belonging to 70 genera and 28 families were recorded within the NCF. The dominant species are: Heteropogon contortus (L.) ***. and Combretum collinum Fresen. followed by Pteleopsissuberosa Engl. & Diels, Annona senegalensis Pers. The most common species are: Lannea acida ***. s.l., A. senegalensis, Vitellaria paradoxa *** subsp. paradoxa, C. collinum and Acacia dudgeonii Craib ex Holland. Due to its small area of just 40 hectares and its diverse plant life, this community forest of Savannahs Region is a significant biodiversity hotspot and warrants conservation efforts.

关键词： Community Forest Floristic Diversity Land Use Change Biodiversity Hotspot Tami Savannah Region Togo

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Anthropogenic Threats to Degraded Forest Land in the Savannahs’ Region of Togo from 1984 to 2020, West Africa

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Journal of Geoscience and Environment Protection 2024年第1期12卷 164-179页

作者： Kossi Senyo Ehlui wouyo atakpam. Henrik von Wehrden Alagie Bah Edinam Kola Christian Anthony-Krueger Hodabalo Egbelou Kokouvi Bruno Kokou Tchaa Boukpessi West Africa Science Service Center on Climate Change and Adapted Land Use (WASCAL) University of the Gambia Banjul Gambia Laboratoire de Recherche sur la Dynamique des Milieux et des Sociétés Université de Lomé Lomé Togo Laboratoire de Botanique et écologie Végétale Département Botanique Faculté des Sciences Université de Lomé Lomé Togo West Africa Plant Red List Authority (WAPRLA) IUCN Species Survival Commission Gland Switzerland Faculty of Sustainability Center of Methods Leuphana University of Lüneburg Lüneburg Germany Center for International Forestry Research and World Agroforestry (CIFOR-ICRAF) Nairobi Kenya Laboratoire de Recherche sur la Dynamique des Milieux et des Sociétés (LARDYMES) Department of Geography FSHS University of Lomé Lome Togo Department of Science Education University of Cape Coast Cape Coast Ghana Institut Togolais de Recherches Agronomiques (ITRA) Lomé Togo Laboratoire de Recherches Biogéographiques et d’Etudes Environnementales Department of Geography University of Lome Lome Togo

This study focuses on the landscape dynamics of the savannahs’ region in the far north of Togo. Based on a literature review and satellite images analysis using GIS and remote sensing, the study aims to ascertain the effects of anthropogenic threats on the forest coverage of the Savannahs’ Region between 1984 to 2020. The objective is to clarify the dynamics of land use in the region from 1984 to 2000 and from 2000 to 2020. The findings indicate a significant decline in forest coverage within the region from 1984 to 2020, a trend attributed to land use patterns. Dry forests in the Savannah region are largely converted to farmlands, housing, dry savannahs or agroforestry parks, leading to a steady reduction in forest areas.

关键词： Forest Degradation Land Use Land Cover Savannahs Region Togo

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Land use patterns and tree species diversity in the Volta Geological Unit, Togo

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Journal of Mountain Science 2019年第8期16卷 1869-1882页

作者： FOLEGA Fousseni atakpam. wouyo WALA Kperkouma MUKETE Beckline SHOZO Shibata AKIRA Osawa ZHAO Xiu-hai AKPAGANA Koffi Geomatic and Ecosystems Modeling/Laboratory of botany and Plant Ecology Faculty of SciencesUniversity of LomeLome01BP1515Togo Key Laboratory for Forest Resources&Ecosystem Processes Beijing Forestry UniversityBeijing 100083China Graduate School of Global Environmental Studies Kyoto UniversityKyoto 606-8501Japan Department of Forest Management Beijing Forestry UniversityBeijing 100083China

The application of remote sensing in understanding tree species structural diversity and land use patterns relationship is imperative for reforestation and biodiversity conservation efforts. This study assesses land use patterns and tree species structural diversity in previously reforested hilly sandstone regions of northern Togo. The physical height, and diameter at breast height(DBH) more than 5 cm of all tree species in each given plot were measured in summer 2017. A total of 75 plots of 900 m^2 installed along the toposequence were recorded. In addition, a semi-supervised classification of Landsat 8 images in January of 2018, was also used to classify the land use patterns. 36 tree species and 19 families were recorded for the entire study area. Meanwhile, 19 tree species and 15 families were recorded for the previously afforested zones. The most abundant species included the Sterculiaceae, Zygophyllaceae, Meliaceae, and Mimosaceae. The trees stand structure represented 8.61 ± 0.57 m, 11.28 ± 1.76 cm, and 0.018 ± 0.009 m^2 per hectare for height, diameter and basal area respectively. Major land use patterns were tree and shrub savannahs, parklands and croplands which represented over 60% of the landscape. It is necessary to examine the regeneration and vegetative multiplication potentials of the most frequent and abundant tree species for any eventual future afforestation programs in these hilly sandstone regions of northern Togo.

关键词： Ecological diversity Land use Ecological restoration Forest degradation Togo

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