喀麦隆西部竹林山区土地利用时空动态分析

Guy Herman Tchoutezou Zanguim, Abubakar Ali Shidiki, Alphonse Loic Tcheugoue Tientcheu, M. Tchamba
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引用次数: 0

摘要

目前对竹木山的生物物理状况、人类活动和治理的了解水平不足以说明植被的动态、社会经济方面和生态机会,而这些对于竹木山生态系统退化景观的成功恢复至关重要。该研究的目的是绘制和分析1980年、2000年和2021年陆地卫星图像中的土地利用动态。采用极大似然法进行监督分类,并利用面积曲线和计算方法进行动力学分析。制图结果被用来制作土地利用图。土地覆被动态分析表明,农林林和茂密林的植被形态演化趋势基本为退化,分别为- 21.20%和- 3.62%。依次为裸地(9.78%)、耕地(8.03%)、建成区(5.19%)、灌丛草原和草地(1.84%)。农业、畜牧业和人口压力是土地退化和景观突变的主要原因。本研究的结果提供了对该景观的土地利用历史的理解,并为规划恢复计划提供了坚实的基础。它们从社会、经济和生态的角度为优先恢复区域和干预类型提供指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of the Spatio-Temporal Dynamics of Land Use in the Bamboutos Mountains of the West Region of Cameroon
The current level of knowledge of the biophysical situation, human activity and governance in the Bamboutos Mountains does not shed enough light on the dynamics of the vegetation, the socio-economic aspects and ecological op-portunities that are essential for a successful restoration initiative in this degraded landscape of the Bamboutos mountain ecosystems. The objective of the study was to map and analyze the dynamics of land use from Landsat images of 1980, 2000 and 2021. Supervised classification by maximum likelihood was applied and the dynamics were analyzed using area curves and calculations. The cartographic results were used to produce land use maps. The analysis of the land cover dynamics shows that the evolutionary trend of the vegetation formations is essentially regressive for agro-forests and dense forests at −21.20% and −3.62% respectively. The classes that showed a clear progression were bare soil (9.78%), crop land (8.03%), built-up areas (5.19%) and shrubby savannahs and grassland (1.84%). Agriculture, livestock grazing and demographic pres-sure are the main causes of land degradation and mutation of the landscape. The results of this study provide an understanding of the land-use history of this landscape, and a solid basis for planning a restoration initiative. They provide guidance on priority areas and types of restoration intervention from a social, economic and ecological perspective.
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