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首页> 外文期刊>Journal of Environmental Management >How do large-scale agricultural investments affect land use and the environment on the western slopes of Mount Kenya? Empirical evidence based on small-scale farmers' perceptions and remote sensing
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How do large-scale agricultural investments affect land use and the environment on the western slopes of Mount Kenya? Empirical evidence based on small-scale farmers' perceptions and remote sensing

机译：大规模的农业投资如何影响肯尼亚山西坡的土地利用和环境？基于小农的感知和遥感的经验证据

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Africa has been heavily targeted by large-scale agricultural investments (LAIs) throughout the last decade, with scarcely known impacts on local social-ecological systems. In Kenya, a large number of LAIs were made in the region northwest of Mount Kenya. These large-scale farms produce vegetables and flowers mainly for European markets. However, land use in the region remains dominated by small-scale crop and livestock farms with less than 1 ha of land each, who produce both for their own subsistence and for the local markets. We interviewed 100 small-scale farmers living near five different LAIs to elicit their perceptions of the impacts that these LAIs have on their land use and the overall environment. Furthermore, we analyzed remotely sensed land cover and land use data to assess land use change in the vicinity of the five LAIs. While land use change did not follow a clear trend, a number of small-scale farmers did adapt their crop management to environmental changes such as a reduced river water flows and increased pests, which they attributed to the presence of LAIs. Despite the high number of open conflicts between small-scale land users and LAIs around the issue of river water abstraction, the main environmental impact, felt by almost half of the interviewed land users, was air pollution with agrochemicals sprayed on the LAIs' land. Even though only a low percentage of local land users and their household members were directly involved with LAIs, a large majority of respondents favored the presence of LAIs nearby, as they are believed to contribute to the region's overall economic development.
机译：在过去的十年中，大规模农业投资一直是非洲的主要目标，对当地社会生态系统的影响鲜为人知。在肯尼亚，在肯尼亚山西北部地区制造了许多LAI。这些大型农场主要为欧洲市场生产蔬菜和花卉。但是，该地区的土地使用仍然由小规模的农作物和畜牧业农场主所主导，每个农场的土地面积均不到1公顷，这些农场既为自己的生计而为当地市场生产。我们采访了居住在五个不同LAI附近的100名小农，以了解他们对这些LAI对土地使用和整体环境的影响。此外，我们分析了遥感的土地覆盖和土地利用数据，以评估五个LAI附近的土地利用变化。尽管土地使用变化没有明显的趋势，但许多小规模农民确实使他们的作物管理适应了环境变化，例如河水流量减少和病虫害增加，这归因于存在LAI。尽管小规模土地使用者与LAI之间在河流取水问题上存在许多公开冲突，但几乎一半的受访土地使用者感到主要的环境影响是在LAI土地上喷洒了农药造成的空气污染。尽管只有极少数的当地土地使用者及其家庭成员直接参与了LAI，但大多数受访者还是青睐附近的LAI，因为它们被认为有助于该地区的整体经济发展。

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