{"title":"喀麦隆-刚果-加蓬dja - odzala - mink<s:1>景观土地利用时空动态:跨境合作背景下森林覆盖演变的影响","authors":"M. Tadoum, M. Tchamba, Armand Tanougong","doi":"10.4236/ojf.2021.113015","DOIUrl":null,"url":null,"abstract":"This study is being carried out in the cross-border \narea of the tri-national Dja-Odzala-Minkebe (TRIDOM), subject of a cooperation \nagreement between Cameroon, Congo and Gabon in 2005. The purpose of this study is to \nanalyze the dynamics of changes in land use in the context of cross-border \ncooperation. Geographic information systems and remote sensing were used to \nproduce the various land use maps. For this purpose, the MERIS satellite images \nfor the periods 1992, 2005 and 2018 were used. The exploration of the different \nimages and the field visits made it possible to identify the following six land \nuse classes: dense forests, degraded/deforested forests, savannas, swamp \nforests, buildings and bare soils, water surfaces. It emerges that the TRIDOM \nlandscape is mainly occupied by dense forests which represent 97.02%, 96.72% \nand 96.52% respectively in 1992, 2005 and 2018. Then, degraded/deforested \nforests and savannas which would correspond to cultivation areas and fallow \nland only represent respectively 1.06% and 0.68% of the landscape in 1992. This \nproportion in 2005 is respectively 1.22% and 0.77%, whereas in 2018, it is \nrespectively 1.36% and 0.81% of the massif. The landscape of TRIDOM has not \nexperienced any significant land use change during the period after the signing \nof the cooperation agreement. Historical rates of deforestation are low during \nthe period under study. They are estimated at 0.042% and 0.030% respectively \nfor the period 1992-2005 and the period 2005-2018. These low rates of \ndeforestation seem to be due to the measures taken to secure and sustainably \nmanage the massif taken by the three countries, the low population density in \nthis area and the still difficult level of accessibility of a large part of the \nmassif.","PeriodicalId":63552,"journal":{"name":"林学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Spatio-Temporal Dynamic of Land Use in the Dja-Odzala-Minkébé Landscape between Cameroon, Congo and Gabon: Influence on the Evolution of Forest Cover in a Context of Cross-Border Cooperation\",\"authors\":\"M. Tadoum, M. Tchamba, Armand Tanougong\",\"doi\":\"10.4236/ojf.2021.113015\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study is being carried out in the cross-border \\narea of the tri-national Dja-Odzala-Minkebe (TRIDOM), subject of a cooperation \\nagreement between Cameroon, Congo and Gabon in 2005. The purpose of this study is to \\nanalyze the dynamics of changes in land use in the context of cross-border \\ncooperation. Geographic information systems and remote sensing were used to \\nproduce the various land use maps. For this purpose, the MERIS satellite images \\nfor the periods 1992, 2005 and 2018 were used. The exploration of the different \\nimages and the field visits made it possible to identify the following six land \\nuse classes: dense forests, degraded/deforested forests, savannas, swamp \\nforests, buildings and bare soils, water surfaces. It emerges that the TRIDOM \\nlandscape is mainly occupied by dense forests which represent 97.02%, 96.72% \\nand 96.52% respectively in 1992, 2005 and 2018. Then, degraded/deforested \\nforests and savannas which would correspond to cultivation areas and fallow \\nland only represent respectively 1.06% and 0.68% of the landscape in 1992. This \\nproportion in 2005 is respectively 1.22% and 0.77%, whereas in 2018, it is \\nrespectively 1.36% and 0.81% of the massif. The landscape of TRIDOM has not \\nexperienced any significant land use change during the period after the signing \\nof the cooperation agreement. Historical rates of deforestation are low during \\nthe period under study. They are estimated at 0.042% and 0.030% respectively \\nfor the period 1992-2005 and the period 2005-2018. These low rates of \\ndeforestation seem to be due to the measures taken to secure and sustainably \\nmanage the massif taken by the three countries, the low population density in \\nthis area and the still difficult level of accessibility of a large part of the \\nmassif.\",\"PeriodicalId\":63552,\"journal\":{\"name\":\"林学期刊(英文)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-06-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"林学期刊(英文)\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.4236/ojf.2021.113015\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"林学期刊(英文)","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.4236/ojf.2021.113015","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Spatio-Temporal Dynamic of Land Use in the Dja-Odzala-Minkébé Landscape between Cameroon, Congo and Gabon: Influence on the Evolution of Forest Cover in a Context of Cross-Border Cooperation
This study is being carried out in the cross-border
area of the tri-national Dja-Odzala-Minkebe (TRIDOM), subject of a cooperation
agreement between Cameroon, Congo and Gabon in 2005. The purpose of this study is to
analyze the dynamics of changes in land use in the context of cross-border
cooperation. Geographic information systems and remote sensing were used to
produce the various land use maps. For this purpose, the MERIS satellite images
for the periods 1992, 2005 and 2018 were used. The exploration of the different
images and the field visits made it possible to identify the following six land
use classes: dense forests, degraded/deforested forests, savannas, swamp
forests, buildings and bare soils, water surfaces. It emerges that the TRIDOM
landscape is mainly occupied by dense forests which represent 97.02%, 96.72%
and 96.52% respectively in 1992, 2005 and 2018. Then, degraded/deforested
forests and savannas which would correspond to cultivation areas and fallow
land only represent respectively 1.06% and 0.68% of the landscape in 1992. This
proportion in 2005 is respectively 1.22% and 0.77%, whereas in 2018, it is
respectively 1.36% and 0.81% of the massif. The landscape of TRIDOM has not
experienced any significant land use change during the period after the signing
of the cooperation agreement. Historical rates of deforestation are low during
the period under study. They are estimated at 0.042% and 0.030% respectively
for the period 1992-2005 and the period 2005-2018. These low rates of
deforestation seem to be due to the measures taken to secure and sustainably
manage the massif taken by the three countries, the low population density in
this area and the still difficult level of accessibility of a large part of the
massif.