Two of the key limitations for sustainably increasing agricultural production are the scarcity of land and fresh water resources. Establishing land and water productivity gaps is, therefore, essential for measuring how efficiently these resources are being utilised and assessing the scope for increasing feed and food production. Monitoring the productivity gaps at large scales or over time using field data is challenging and expensive. Remote sensing offers an alternative data source to reveal spatial and temporal variations in productivity.

中文翻译：

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利用遥感技术确定水资源对缩小土地和水资源生产率差距的影响——以甘蔗为例


可持续增加农业生产的两个主要限制因素是土地和淡水资源的稀缺。因此，确定土地和水资源生产力差距对于衡量这些资源的利用效率以及评估增加饲料和粮食生产的范围至关重要。使用现场数据大规模或长期监测生产力差距具有挑战性且成本高昂。遥感为揭示生产力的时空变化提供了替代数据源。