Estimating plant root water uptake using a neural network approach

文献类型： 外文期刊

第一作者： Qiao, D. M.

作者： Qiao, D. M.;Pang, H. B.;Qi, X. B.;Qiao, D. M.;Shi, H. B.;Plauborg, F.

作者机构：

关键词： Sunflower;Pedotransfer function;Water stress;Soil salinity

期刊名称：AGRICULTURAL WATER MANAGEMENT （ 影响因子：4.516； 五年影响因子：5.12 ）

ISSN： 0378-3774

年卷期： 2010 年 98 卷 2 期

页码：

收录情况： SCI

摘要： Water uptake by plant roots is an important process in the hydrological cycle, not only for plant growth but also for the role it plays in shaping microbial community and bringing in physical and biochemical changes to soils. The ability of roots to extract water is determined by combined soil and plant characteristics, and how to model it has been of interest for many years. Most macroscopic models for water uptake operate at soil profile scale under the assumption that the uptake rate depends on root density and soil moisture. Whilst proved appropriate, these models need spatio-temporal root density distributions, which is tedious to measure in situ and prone to uncertainty because of the complexity of root architecture hidden in the opaque soils. As a result, developing alternative methods that do not explicitly need the root density to estimate the root water uptake is practically useful but has not yet been addressed. This paper presents and tests such an approach. The method is based on a neural network model, estimating the water uptake using different types of data that are easy to measure in the field. Sunflower grown in a sandy loam subjected to water stress and salinity was taken as a demonstrating example. The inputs to the neural network model included soil moisture, electrical conductivity of the soil solution, height and diameter of plant shoot, potential evapotranspiration, atmospheric humidity and air temperature. The outputs were the root water uptake rate at different depths in the soil profile. To train and test the model, the root water uptake rate was directly measured based on mass balance and Darcy's law assessed from the measured soil moisture content and soil water matric potential in profiles from the soil surface to a depth of 100 cm. The 'measured' root water uptake agreed well with that predicted by the neural network model. The successful performance of the model provides an alternative and more practical way to estimate the root water uptake at field scale. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

分类号：

  • 相关文献

[1]Reevaluation of biosecurity of Ophraella communa against sunflower (Helianthus annuus). Zhou, Zhong-Shi,Guo, Jian-Ying,Zheng, Xing-Wen,Luo, Min,Chen, Hong-Song,Wan, Fang-Hao,Zheng, Xing-Wen,Luo, Min,Chen, Hong-Song. 2011

[2]iTRAQ-based proteomics of sunflower cultivars differing in resistance to parasitic weed Orobanche cumana. Yang, Chong,Zhang, Na,Islam, Faisal,Song, Wenjian,Hu, Luyang,Zhou, Weijun,Xu, Ling,Liu, Dan,Xie, Xiaonan.

[3]Density and Seasonal Dynamics of Bemisia tabaci (Gennadius) Mediterranean on Common Crops and Weeds Around Cotton Fields in Northern China. Yang Nian-wan,Wan Fang-hao,Lovei, Gabor L.,Lovei, Gabor L.. 2014

[4]The dynamics of tocopherol and the effect of high temperature in developing sunflower (Helianthus annuus L.) embryo. Dong, Guijun,Liu, Xiaoli,Chen, Zhongyue,Pan, Weidong,Li, Hongjie,Liu, Gongshe. 2007

[5]Effects of straw mulch and buried straw on soil moisture and salinity in relation to sunflower growth and yield. Zhao, Yonggan,Pang, Huancheng,Wang, Jing,Huo, Long,Li, Yuyi. 2014

[6]Physiological and biochemical responses in sunflower leaves infected by Sclerotinia sclerotiorum. Liu, Jia,Liu, Jia,Zhang, Yunhua,Meng, Qinglin,Shi, Fengmei,Ma, Ligong,Li, Yichu. 2017

[7]GENETIC DIVERSITY OF SCLEROTINIA SCLEROTIORUM WITHIN A SINGLE SUNFLOWER FIELD IN WENQUAN, XINJIANG PROVINCE, CHINA. Li, M.,Jia, R.,Hou, Y.,Bu, H.,Zhou, H.,Zhao, J.,Na, R..

[8]Seed treatment with salicylic acid invokes defence mechanism of Helianthus annuus against Orobanche cumana. Yang, C.,Hu, L. Y.,Ali, B.,Islam, F.,Zhou, W. J.,Yang, C.,Hu, L. Y.,Ali, B.,Islam, F.,Zhou, W. J.,Bai, Q. J.,Yun, X. P.,Yoneyama, K..

[9]Main effects and interactions among acibenzolar-S-methyl, a biocontrol fungus and sunflower cultivar on control of Orobanche cumana Wallr.. Fan, Z.-W.,Buschmann, H.,Mueller-Stoever, D.,Sauerborn, J..

[10]Molecular mapping of a rust resistance gene R-14 in cultivated sunflower line PH 3. Zhang, Ming,Zhang, Ming,Liu, Zhao,Jan, Chao-Chien.

[11]Effects of Soil Salinity and Plant Density on Yield and Leaf Senescence of Field-Grown Cotton. Zhang, H. J.,Dong, H. Z.,Li, W. J.,Zhang, D. M.,Zhang, H. J.. 2012

[12]Lint yield and nitrogen use efficiency of field-grown cotton vary with soil salinity and nitrogen application rate. Zhang, Dongmei,Li, Weijiang,Xin, Chengsong,Tang, Wei,Eneji, A. Egrinya,Dong, Hezhong,Eneji, A. Egrinya. 2012

[13]Effects of soil salinity on rhizosphere soil microbes in transgenic Bt cotton fields. Luo Jun-yu,Cui Jin-jie,Zhou Zhi-guo,Zhang Shuai,Zhu Xiang-zhen,Lu Li-min,Wang Chun-yi,Li Chun-hua,Cui Jin-jie,Zhou Zhi-guo. 2017

[14]Assessing the effects of water table depth on water use, soil salinity and wheat yield: Searching for a target depth for irrigated areas in the upper Yellow River basin. Xu, Xu,Huang, Guanhua,Huang, Quanzhong,Hao, Yuanyuan,Xu, Xu,Huang, Guanhua,Huang, Quanzhong,Hao, Yuanyuan,Sun, Chen,Pereira, Luis S.,Ramos, Tiago B.. 2013

[15]Allocation of photosynthestically-fixed carbon in plant and soil during growth of reed (Phragmites australis) in two saline soils. Li, Ling,Qiu, Shaojun,Xu, Minggang,Li, Ling,Chen, Yinping,Zhao, Ximei,Xu, Xingliang,Christie, Peter.

[16]Over-expression of the Arabidopsis Na+/H+ antiporter gene in Populus deltoides CL x P. euramericana CL "NL895" enhances its salt tolerance. Qiao, Guirong,Zhuo, Renying,Liu, Mingying,Jiang, Jing,Li, Haiying,Qiu, Wenmin,Pan, Luanyin,Lin, Sheng,Zhang, Xiaoguo,Sun, Zongxiu,Lin, Sheng.

[17]Estimating soil salinity in different landscapes of the Yellow River Delta through Landsat OLI/TIRS and ETM plus Data. Meng, Ling,Meng, Ling,Zhou, Shiwei,Zhang, Hua,Bi, Xiaoli.

[18]Salinity Tolerance Mechanism of Economic Halophytes From Physiological to Molecular Hierarchy for Improving Food Quality. Xu, Chongzhi,Tang, Xiaoli,Shao, Hongbo,Wang, Hongyan,Shao, Hongbo,Wang, Hongyan,Wang, Hongyan. 2016

[19]Buried straw layer plus plastic mulching reduces soil salinity and increases sunflower yield in saline soils. Zhao, Yonggan,Li, Yuyi,Wang, Jing,Pang, Huancheng,Zhao, Yonggan,Li, Yan.

[20]GIS-mapping spatial distribution of soil salinity for Eco-restoring the Yellow River Delta in combination with Electromagnetic Induction. Li, Jinbiao,Zhang, Xuechen,Lv, Zhenzhen,Yang, Jingsong,Yu, Shipeng,Wang, Xiuping,Shao, Hongbo,Shao, Hongbo.

作者其他论文 更多>>

微信小程序