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首页> 外文期刊>Transactions of Royal Society of South Africa >Quantifying the spatial and temporal changes in forested landcover using landscape metrics derived from remotely sensed data in rural parts of Zimbabwe
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Quantifying the spatial and temporal changes in forested landcover using landscape metrics derived from remotely sensed data in rural parts of Zimbabwe

机译：使用从津巴布韦农村地区的遥感数据得出的景观指标量化森林土地覆盖物的时空变化

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摘要

This study examines the application of remotely sensed derived landscape metrics to understand the changes and dynamics in the form and morphology of forested areas in rural parts of Zimbabwe from 2002 to 2011. Specifically, the study determines the spatial and temporal changes in forest areas due to human activities, such as crop production, using landscape metrics derived from classified Landsat remote sensing images. The results from this study have shown that landscape metrics derived from the 30-m Landsat dataset have a great potential for understanding the patterns of change in forested areas in the developing world. For instance, in the year 2002, the majority of the land was occupied by forests, whereas in 2011, it was shown that non-forested areas became more dominant and scattered, and forested areas showed a decrease in spatial extent. Moreover, statistical results have shown that in 2002, the number of forest patches was higher and significantly different when compared to non-forested patches. However, in 2011, both land cover types showed an increase in the number of patches, although the number of non-forested patches was higher and indicated significant differences (p < 0.05) in terms of areal extent. Overall, the findings of this study provide a comprehensive understanding of the impacts of human activities on the natural ecosystem which leads to better and improved future land use planning and management strategies.
机译：这项研究检验了遥感衍生景观度量的应用，以了解2002年至2011年津巴布韦农村地区林区的形态和形态的变化和动态。具体而言，该研究确定了由于人类活动，例如作物生产，使用从分类的Landsat遥感影像中获得的景观指标。这项研究的结果表明，从30米长的Landsat数据集中得出的景观指标具有很大的潜力，可以理解发展中国家森林地区的变化模式。例如，在2002年，大部分土地被森林所占据，而在2011年，表明非林区变得更加占优势和分散，林区的空间范围减小了。此外，统计结果表明，在2002年，与非森林斑块相比，森林斑块的数量更高，且差异显着。但是，在2011年，两种土地覆被类型都显示了斑块数量的增加，尽管非森林斑块的数量更高，并且在面积上显示出显着差异（p <0.05）。总体而言，这项研究的结果提供了对人类活动对自然生态系统影响的全面理解，从而可以更好地改善未来的土地利用规划和管理策略。

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