Learning from Water Footprints
Learning from Water Footprints
复制标题
从水足迹中学习
DOI：
10.26686/pq.v15i3.5690
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
C. Perry
中科院分区：
文献类型：
--
作者：
C. Perry
“足迹”概念被广泛用作评估二氧化碳排放量和作物生产中体现的水分的指标。对主要特征的比较表明，二氧化碳足迹无论其位置或来源如何，都是一个全球关注的问题；水足迹只与当地相关，是当地产生的，只在地方层面上产生影响。因此，解决过度用水问题是当地关注的问题。在过度使用得不到管理的地方，灌溉农业的“混乱分配”过程就会随之而来，导致当地产量减少，并通过市场机制增加其他地方的需求。在水资源短缺得到可持续管理的地区，灌溉生产将获得更多有利可图的机会，尽管对价格的影响不会引起发达国家消费者的担忧。
The ‘footprint’ concept is widely used as an indicator to assess CO2 emissions and the water embodied in crop production. A comparison of key features reveals that CO2 footprints are a global concern no matter their location or source; water footprints only have local relevance, being locally generated and impacting only at local levels. As such, addressing excessive water use is a local concern. Where excessive use is not managed, a process of ‘chaotic disallocation’ from irrigated agriculture ensues, resulting in reduced local production and, through market mechanisms, increased demand elsewhere. Those areas where water scarcity is managed sustainably will see more profitable opportunities for irrigated production, though the impact on prices will be of little concern to consumers in the developed world.