Future increases in land-based production will need to focus more on sustainably intensifying existing production systems. Unfortunately, our understanding of the global patterns of land use intensity is weak, partly because land use intensity is a complex, multidimensional term, and partly because we lack appropriate datasets to assess land use intensity across broad geographic extents. Here, we review the state of the art regarding approaches for mapping land use intensity and provide a comprehensive overview of available global-scale datasets on land use intensity. We also outline major challenges and opportunities for mapping land use intensity for cropland, grazing, and forestry systems, and identify key issues for future research.

中文翻译：

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绘制全球土地利用强度地图的挑战和机遇。


未来陆地生产的增长需要更多地关注可持续集约化现有生产系统。不幸的是，我们对土地利用强度的全球模式的理解很薄弱，部分原因是土地利用强度是一个复杂的、多维的术语，部分原因是我们缺乏适当的数据集来评估广泛地理范围内的土地利用强度。在这里，我们回顾了绘制土地利用强度图的方法的最新技术，并提供了可用的全球规模土地利用强度数据集的全面概述。我们还概述了绘制农田、牧场和林业系统土地利用强度地图的主要挑战和机遇，并确定了未来研究的关键问题。