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虚拟水研究是粮食安全与水资源安全的重要研究领域,目前的研究主要集中在宏观、中观层次上,微观层次研究甚少。为了探讨虚拟水微观层次的研究方法,本研究于2005～2007年在吉林省西部开展了玉米不同耕作方式下虚拟水变化的大田试验。通过分析6种耕作方式(65cm垄台、65cm垄沟、43cm垄台、43cm垄沟、98cm双行垄台、130cm三行垄台)之间单位质量玉米虚拟水含量的差异,及不同耕作方式对单位质量玉米虚拟水含量稳定性的影响,确定适合吉林省西部的最优玉米种植模式,以实现水资源高效利用,为解决水资源紧缺问题提供新思路。经过三年的大田试验,认为98cm双行垄台的耕作方式最佳,不仅虚拟水消耗量小,而且波动也较小,特别是在极端干旱年份其单位质量玉米虚拟水含量最低,建议本地区玉米种植方式应从65cm垄台种植改为98cm双行垄台种植。
Virtual water research is an important research field of food security and water resource security. The current researches mainly focus on the macroscopic and meso-level, and there are few studies on the micro-level. In order to explore the research methods of virtual water micro-level, this study conducted field experiments on the virtual water changes of maize under different tillage styles from 2005 to 2007 in the west of Jilin Province. By analyzing the differences of virtual water content per unit mass of maize between six tillage modes (65cm ridge, 65cm ridge, 43cm ridge, 43cm ridge, 98cm double row ridge and 130cm row ridge) The quality of corn, the stability of the virtual water content to determine the appropriate corn planting in western Jilin Province in order to achieve efficient use of water resources in order to solve the problem of water shortage to provide new ideas. After three years of field trials, we believe that the 98 cm two-lane ridge cultivation method is the best, not only the virtual water consumption is small, but also less volatile, especially in extremely dry years, its unit mass of corn virtual water content is the lowest, it is recommended that the region Corn planting methods should be changed from 65cm ridge planting to 98cm double line ridge planting.