大规模人工林农业导致的森林覆盖变化及其对气候变率影响的社区认知

Clara Enow Ayombe, Amahui George Amenhwi, Mbah Ignatius Ngala
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引用次数: 0

摘要

本研究旨在评估种植农业对Nguti分区土地利用、土地覆盖变化的影响,并调查居民对土地利用、土地覆盖变化对当地气候变率影响的认知。利用Arc GIS 8对Landsat多光谱图像的卫星地图进行处理,以评估土地覆盖随时间的变化。采用结构化问卷调查、焦点小组讨论和访谈等方法,收集居民对土地利用、土地覆盖变化对气候变率影响的认知相关数据。使用社会科学统计软件包(SPSS)第19版来分析被调查者对土地利用和土地覆盖变化对当地气候变率影响的看法。结果表明,2006年至2012年,当没有大规模农业实践时,茂密森林的变化缓慢,为-2%,而2012年至2015年,当有大规模农业实践时,茂密森林的变化迅速,为-14%,表明森林覆盖的大规模损失。2006年至2012年间,人工林面积略有增加(51公顷),但2012年至2015年间,人工林面积大幅增加(210公顷)。Nguti区的居民证实,该地区的气候条件存在变化,表现为气温升高、降雨减少和季节性变化。作者建议需要一个参与性的土地使用规划,以划分和分配土地为各种土地用途,并避免未来的土地使用冲突。关键词:茂密森林,棕榈种植园,聚落,调查对象,变异性,生计变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Forest cover change due to large scale plantation agriculture and community perception of its impact on climate variability in Nguti sub-division, South West Cameroon Region
This study was carried out to evaluate the effects of plantation agriculture on land use, land cover change in the Nguti sub division and to investigate resident’s perception about the effects of land use, land cover change on local climatic variability. Satellite maps from Landsat multispectral images were processed using Arc GIS 8 to assess land cover change overtime. Structured questionnaires, focused group discussions and interviews were used to gather relevant data on resident’s perception on the impacts of land use, land cover changes on climate variability. The statistical package for social science (SPSS) version 19 was used to analyze respondent’s perception on the impacts of land use land cover change on local climatic variability. Results indicate a slow change in dense forest of -2% between 2006 and 2012 when no large scale agricultural practice existed, as opposed to a rapid change of -14% between 2012 and 2015 when such practice existed, indicating a massive loss of forest cover. Plantations increase slightly between 2006 and 2012 (51 ha) but witnessed a massive increase (210ha) between 2012 and 2015. Residents of Nguti sub division attest that there has been variability in the climatic condition in the area experience in the form of increase temperature, reduction in rainfall and changes in seasonality. Authors recommended a need for a participatory land use planning to delimit and allocate land into various land uses and to avoid future land use conflicts.   Key words: Dense forest, palm plantation, settlements, respondents, variability, livelihood change.
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