贝努埃河东岸(喀麦隆北部)土地利用和植被变化的动态。

IF 3.4 3区 生物学 Q1 Agricultural and Biological Sciences
Djosebe Azaria, Froumsia Moksia, Tchobsala, Kamblaba Pierre, Prudence Tezore Bakary
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引用次数: 0

摘要

由于人类活动和气候原因,贝努埃河岸东部地区的植被和林木资源正在退化。本研究的主要目的是利用卫星图像分析农民对贝努埃河岸东部植被演变和土地利用动态的认识。所采用的方法是一种结合实地调查、遥感、绘图和建模的综合方法。调查结果显示,88% 的受访者认为植被覆盖面积有所减少。造成植被减少的原因很多,但最主要的原因仍然是强烈的人类活动,这也是土地逐渐退化的根源。从 1991 年到 2021 年,自然形成的植物演变趋势基本上是倒退的。对土地利用演变的分析表明,在雷伊-布巴区,1991 年,58.24%的地区以前由茂密的林木构成,到 2021 年,这一比例大幅下降到 25.77%。比贝米区的情况也是如此,林区面积从 1991 年占总面积的 65.47%下降到 2021 年的 28.45%。林地面积的减少有利于人类居住区,因为人类居住区的面积增加了。他们建议,在监测植被受人类压力和气候变异影响的动态时,应提高有效意识,以便更好地综合管理该地区的植被。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamic of land use and vegetation change in the eastern bank of Bénoué (North Cameroon).

The eastern part of the Benoue River bank is undergoing degradation marked by a significant decrease in vegetation cover and woody resources due to anthropogenic activities and climatic. The main objective of this study is to analyze the farmers' knowledge of vegetation evolution and the dynamics of land use using satellite images in the east of the bank of the Benoue. The methodological approach used is an integrated one combining field surveys, remote sensing, mapping, and modeling. The results obtained show that 88% of the population surveyed believe that the area covered by vegetation has decreased. The reasons for this decrease are numerous, but the main one remains the strong anthropic activity that would be at the origin of the progressive degradation of the land. The evolutionary trend of plant formations is essentially regressive for natural formations from 1991 to 2021. The analysis of the evolution of land use showed that in the Rey-Bouba district during 1991, 58.24% of the area formerly made up of dense woody formations regressed considerably to 25.77% in 2021. The same is true for the Bibemi district where the area of wooded zone has decreased from 65.47% in 1991 to 28.45% of the total area in 2021. This regression of the surface area of wooded formations was done to the benefit of anthropized occupation classes whose area has increased. They suggest an effective awareness in the monitoring of the dynamics of the vegetation cover subjected to anthropic pressures and climatic variations for a better-integrated management of the vegetation of this area.

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来源期刊
Botanical Studies
Botanical Studies 生物-植物科学
CiteScore
5.50
自引率
2.90%
发文量
32
审稿时长
2.4 months
期刊介绍: Botanical Studies is an open access journal that encompasses all aspects of botany, including but not limited to taxonomy, morphology, development, genetics, evolution, reproduction, systematics, and biodiversity of all plant groups, algae, and fungi. The journal is affiliated with the Institute of Plant and Microbial Biology, Academia Sinica, Taiwan.
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