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An In-Depth Analysis of Physical Blue and Green Water Scarcity in Agriculture in Terms of Causes and Events and Perceived Amenability to Economic Interpretation
Water ( IF 3.4 ) Pub Date : 2021-06-18 , DOI: 10.3390/w13121693
Kalomoira Zisopoulou , Dionysia Panagoulia

An analytical review of physical blue and green water scarcity in terms of agricultural use, and its amenability to economic interpretation, is presented, employing more than 600 references. The main definitions and classifications involved and information about reserves and resources are critically analyzed, blue and green water scarcity are examined along with their interchange, while their causal connection with climate in general is analyzed along with the particular instances of Europe, Africa, Asia and the WANA region. The role of teleconnections and evaporation /moisture import-export is examined as forms of action at a distance. The human intervention scarcity driver is examined extensively in terms of land use land cover change (LULCC), as well as population increase. The discussion deals with following critical problems: green and blue water availability, inadequate accessibility, blue water loss, unevenly distributed precipitation, climate uncertainty and country level over global level precedence. The conclusion singles out, among others, problems emerging from the inter-relationship of physical variables and the difficulty to translate them into economic instrumental variables, as well as the lack of imbedding uncertainty in the underlying physical theory due to the fact that country level measurements are not methodically assumed to be the basic building block of regional and global water scarcity.

中文翻译:

从原因和事件以及对经济解释的感知适应性方面对农业中物理蓝绿水短缺的深入分析

对农业使用方面的物理蓝色和绿色水资源短缺及其经济解释的适应性进行了分析审查,使用了 600 多篇参考文献。所涉及的主要定义和分类以及有关储量和资源的信息经过批判性分析,研究了蓝水和绿水稀缺及其互换,同时分析了它们与一般气候的因果关系以及欧洲、非洲、亚洲和WANA 区域。遥相关和蒸发/水分进出口的作用被视为远距离行动的形式。在土地利用土地覆盖变化 (LULCC) 以及人口增加方面,对人为干预稀缺性驱动因素进行了广泛研究。讨论涉及以下关键问题:绿水和蓝水的可用性、可及性不足、蓝水流失、降水分布不均、气候不确定性和国家层面高于全球水平。该结论特别指出了物理变量之间的相互关系所产生的问题以及将它们转化为经济工具变量的困难,以及由于国家层面的测量结果在基础物理理论中缺乏嵌入的不确定性不是有条不紊地假设是区域和全球水资源短缺的基本组成部分。
更新日期:2021-06-18
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