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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (6): 77-80.

• 农学 农业基础科学 • 上一篇    下一篇

不同尺度农田水分利用效率测定方法评述

王建林,杨新民,房全孝   

  • 收稿日期:2009-11-09 修回日期:2009-11-27 出版日期:2010-03-20 发布日期:2010-03-20
  • 基金资助:

    国家自然科学基金

The expatiation on mensurating method of field water use efficiency in different scale

  • Received:2009-11-09 Revised:2009-11-27 Online:2010-03-20 Published:2010-03-20

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摘要：

摘要：水分利用效率是反映作物物质生产与水分消耗之间关系的指标，在不同的学科存在不同的理解，在不同尺度有不同的计算方法。本文评述了收获法、红外气体分析法、涡度相关法、稳定同位素法测定水分利用效率的优缺点及其适用的尺度。

关键词: 丙氨酰谷氨酰胺, 丙氨酰谷氨酰胺, 断奶仔猪, 生长性能, 生化指标

Abstract:

Abstract: Water use efficiency (WUE) is the index to the relationship between matter production and water ?. There was the different understanding in the different field, and there was the different account way in the different scale. It was expatiated that there was excellence and shortcoming when we mensurated WUE by harvest method, infrared gas analyse method, eddy correlation method or stable-isotope method, and the suitable scale to those methods.