Establishing and validating the root water uptake model of winter wheat under salt stress conditions

被引：0
|
作者：
Wang L. [1 ,2 ]
Shi J. [2 ]
Zuo Q. [2 ]
Zhu X. [3 ]
机构：
[1] College of Water Conservancy and Civil Engineering, China Agricultural University
[2] College of Resources and Environmental Sciences, China Agricultural University
[3] Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences
来源：
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2011年 / 27卷 / 01期
关键词：
Models; Root nitrogen mass density; Salinity stress reduction function; Salt; Stresses; Winter wheat;
D O I：
10.3969/j.issn.1002-6819.2011.01.017
中图分类号：
学科分类号：
摘要：
In order to validate the relations between the root-water-uptake and the root nitrogen mass, and optimize the salinity stress reduction function, a field experiment was designed to estimate the root-water-uptake rate distributions of winter wheat and discuss the relationship between the maximum root-water-uptake rate and the root nitrogen mass density. The relationship was used to establish a root-water-uptake model, optimize the salinity stress reduction function, and simulate the root-water-uptake dynamics under salinity stress. The simulated root-water-uptake rate distributions were comparable with the estimated values using the inverse method. The results showed that the linear relationship between root-water-uptake rate and root mass nitrogen was applicable in optimizing the salinity stress reduction function and establishing the root-water-uptake model under salinity stress.
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页码：112 / 117
页数：5
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