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

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

作者： FOLEGA Fousseni ATAKPAMA 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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Assessment of the Protected Areas Strategy in Togo under Sustainable Management: The Case Study of Oti-Keran, Togodo, and Abdoulaye Faunal Reserve

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Open Journal of Ecology 2020年第4期10卷 141-159页

作者： Kossi Fandjinou Kebin Zhang Fousseni Folega beckline mukete Xiaohui Yang Kperkouma Wala Koffi Akpagana Eve Bohnett School of Soil and Water Conservation Beijing Forestry University Beijing China Laboratoire de Botanique et d’Ecologie Végétale Université de Lome Lome Togo Department of Forest Management Beijing Forestry University Beijing China Institute of Desertification Studies Chinese Academy of Forestry Beijing China Departement of Landscape Architecture University of Florida Gainesville FL USA

This study aims to identify the drivers of environmental degradation due to the dependency of surrounding residents on three protected areas in Togo, Africa (Oti-Keran, Togodo, and Abdoulaye national parks (abbr. OTA national parks)). Surveys of villagers conducted in and around the OTA national parks added to data downloaded from Indexmundi data portal. National-level trend analysis results indicated: 1) the number of terrestrial protected areas showed an upward trend, while savannah and forest cover showed alarming decrease trends. 2) At the local level, supplying socio-economic needs in the three selected protected areas directly resulted in biodiversity degradation through animal grazing, hunting and farming. 3) Over 70% of the respondent’s livelihoods consisted of farming and related dependencies on the protected areas for timber and non-timber forest products and income despite the protected status hold by these classified areas. 4) The OTA national parks have been experiencing an increase of anthropogenic pressure such as uncontrolled tree logging and hunting, which seriously impacts animal and vegetation biodiversity. 5) Policymakers should invest more resources in implementing an integrated management system based not only on a holistic vision of the PA that includes participatory management but also accounts for multi-dimensional principles to enable anthropogenic activities in and around the protected areas to satisfy sustainable development requirements.

关键词： Classified Area Multi-Dimensional Principle Viable Strategy Approach

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在喀麦隆西南部的农民小农可可的技术效率分析

在喀麦隆西南部的农民小农可可的技术效率分析

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作者： Ngoe mukete Bosambe 南京农业大学

学位级别：硕士

在这项研究中,我们评估在农民的小农可可技术效率Meme division of South West Region,Cameroon通过随机生产函数和实地调查,本研究进一步探讨可可业社会经济影响喀麦隆经济。使用一个参与式的研究方法,收集资料,从515户户主在四个村庄... 详细信息

在这项研究中,我们评估在农民的小农可可技术效率Meme division of South West Region,Cameroon通过随机生产函数和实地调查,本研究进一步探讨可可业社会经济影响喀麦隆经济。使用一个参与式的研究方法,收集资料,从515户户主在四个村庄的可可生产的数量,每公顷可可树的数量,数量的肥料,劳动力的可用性和社会经济特征。我们的研究结果表明,技术效率范围在0.11和0.99之间,平均技术效率为0.86。我们也观察到获得信贷和扩展服务,显着影响技术效率。因此,创新的制度安排,提高推广和农民培训,伴随着改善信贷获得有可能有效地提高可可生产在这一部分的喀麦隆和其他地方。

关键词：技术效率小农可可业喀麦隆随机函数

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