Traditional economic activities induce environmental pressures. In order to ensure sustainable economic growth, one needs to decouple it from the environmental pressures. Sustainable growth of the agricultural sector is topical in the sense that economic activity supports rural populations, whereas the resulting environmental pressures may affect diverse groups of population. Thus, the analysis of water footprint related to crop farming is important in the sense of efficient resource use and sustainable development of agriculture in general. In this paper, we focus on Lithuanian crop farming and the related green and grey water footprints. Specifically, we decompose the changes in the water footprints during 2000–2016 by exploiting the Logarithmic Mean Divisia Index. Due to the expansion of the areas harvested, the scale effect appeared as an important driver of growth in green and grey water footprints. The shifts in spatial distribution of area harvested virtually had no influence on the dynamics in either of the water footprints. The crop-mix effect was much higher for the grey water footprint (51% over the period of 2000–2015) than it was the case for the green water footprint (21%). The yield growth induced growth in both green and grey water footprints.

中文翻译：

---

农业部门的经济-水关系：LMDI 分解水足迹的动态

传统的经济活动会引发环境压力。为了确保可持续的经济增长，人们需要将其与环境压力脱钩。从经济活动支持农村人口的意义上说，农业部门的可持续增长是热门话题，而由此产生的环境压力可能会影响不同的人口群体。因此，从有效资源利用和农业可持续发展的角度来看，与农作物种植相关的水足迹分析很重要。在本文中，我们关注立陶宛的农作物种植以及相关的绿色和灰色水足迹。具体而言，我们利用对数平均除法指数分解了 2000-2016 年期间水足迹的变化。由于收获面积的扩大，规模效应似乎是绿色和灰色水足迹增长的重要驱动因素。收获面积空间分布的变化实际上对任一水足迹的动态没有影响。灰水足迹的作物混合效应（2000-2015 年期间为 51%）远高于绿色水足迹（21%）。产量增长导致绿水足迹和灰水足迹的增长。