Spatio-Temporal Distribution of Southeastern Community Forests in Togo(West Africa)

摘要：

　　The present study aimed to provide the basics needed to reconcile the fight against poverty with the need of a good management of community resources in the context of local and sustainable development.It focused on the identification of geographic location and spatio-temporal dynamics of these resources in the southeastern part of Togo.The methodological approach was based on the spatial analysis of the area for the years 1988,2000 and 2018 by combining optical imagery from Landsat TM,ETM+and Sentinel-2A MSI satellites with radar imagery from Sentinel-1A IW/GRDH.Spatial analysis showed a fragmented spatial structure undergoing major changes for the period 1988-2018.Plantations,riparian formations,agglomerations,water bodies and wetlands increased respectively by 4.61%,2.09%,1.07%,0.43%and 0.35%annually,while forests,savannahs,crops and fallow lands decreased annually by 0.71%,5.87%and 1.97%.For the “forests class,seven community forests geographically organized in three sub-groups were identified and mapped.The analysis of their areas pointed to the fact that out of 667 ha of community forests in 1988,only 415 ha remain in 2018,which means a loss of 37.78%in forest areas over the 30 years,or an annual deforestation rate of 1.64%.The different spatial changes observed could be attributed to several unsustainable human activities.The land use maps for the years 1988,2000 and 2018 will contribute to resource localization and protection in sensitive areas or,in other words,to the integrated and rational management of these resources.The different identified and mapped community forests could serve as management units for managers in developing their management plans.

关键词： Landsat Image Sentinel Image Spatial Analysis Community Forest Lower Mono Valley

作者: Yawo Konko Jean Paul Rudant Gbétey Kokouvi Akpamou Koffi Dodji Noumonvi Kouami Kokou

作者单位: National Environmental Observatory,National Agency of Environment Management,Lomé,Togo LaSTIG/IGN,MATIS,Radar Remote Sensing Group,Paris-Est Marne la Vallée University,Paris,France Department of Studies and Planning,Ministry of Environment and Forest Resources,Lomé,Togo Higher Institute of Agronomy,University of Lisbon,Lisbon,Portugal Laboratory of Forest Research,Faculty of Sciences,University of Lomé,Lomé,Togo

会议类型: 国际会议

会议名称: the 8th Internal Conference on Geology and Geophysics(ICGG2018)(第8届地质和地球物理学国际会议)

会议地点: 成都

会议语种:英文

页码: 51-65

在线出版日期: 2018-06-01（万方平台首次上网日期，不代表论文的发表时间）