Estimation of water productivity in winter wheat using the AquaCrop model with field hyperspectral data
文献类型: 外文期刊
作者: Jin, Xiuliang 1 ; Yang, Guijun 2 ; Li, Zhenhai 2 ; Xu, Xingang 2 ; Wang, Jihua 4 ; Lan, Yubin 5 ;
作者机构: 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
3.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
4.Beijing Res Ctr Agri Food Testing & Farmland Moni, Beijing 100097, Peoples R China
5.South China Agr Univ, Coll Engn, Guangzhou 510642, Guangdong, Peoples R China
关键词: Water productivity;AquaCrop model;Spectral index;Lookup table;Winter wheat
期刊名称:PRECISION AGRICULTURE ( 影响因子:5.385; 五年影响因子:5.004 )
ISSN: 1385-2256
年卷期: 2018 年 19 卷 1 期
页码:
收录情况: SCI
摘要: Water productivity (WP) is a key element of agricultural water management in agricultural irrigated regions. The objectives of this study were: (i) to estimate biomass of winter wheat using spectral indices; (ii) integrate the estimation of biomass data with the AquaCrop model using a lookup table for higher accuracy biomass simulation; (iii) show estimation accuracy of the data assimilation method in yield and WP. Spectral variables and concurrent biomass, yield and WP of samples were acquired at the Xiaotangshan experimental site in Beijing, China, during the 2008/2009, 2009/2010, 2010/2011 and 2011/2012 winter wheat growing seasons. The results showed that all spectral indices had a highly significant relationship with biomass, especially normalized difference matter index, with R-2 and RMSE values of 0.84 and 1.43 t/ha, respectively. Simulation of biomass and yield by the AquaCrop model were in good agreement with the measured biomass and yield of winter wheat. The results showed that the data assimilation method (R-2 = 0.79 and RMSE = 0.12 kg/m(3)) could be used to estimate WP. The result indicated that the AquaCrop model could be used to estimate yield and WP with the aid of remote sensing for improving agricultural water resources management.
- 相关文献
作者其他论文 更多>>
-
Recognition of wheat rusts in a field environment based on improved DenseNet
作者:Chang, Shenglong;Cheng, Jinpeng;Fan, Zehua;Ma, Xinming;Li, Yong;Zhao, Chunjiang;Chang, Shenglong;Yang, Guijun;Cheng, Jinpeng;Fan, Zehua;Yang, Xiaodong;Zhao, Chunjiang
关键词:Plant disease; Wheat rust; Image processing; Deep learning; Computer vision (CV); DenseNet
-
Automatic Rice Early-Season Mapping Based on Simple Non-Iterative Clustering and Multi-Source Remote Sensing Images
作者:Wang, Gengze;Chen, Riqiang;Yang, Guijun;Feng, Haikuan;Wang, Gengze;Chen, Riqiang;Yang, Guijun;Feng, Haikuan;Meng, Di;Jin, Hailiang;Ge, Xiaosan;Wang, Laigang;Feng, Haikuan
关键词:early-season rice mapping; spectral index (SI); synthetic aperture radar (SAR); Simple Non-Iterative Clustering (SNIC); time series filtering; K-Means; Jeffries-Matusita (JM) distance
-
Comparison of three models for winter wheat yield prediction based on UAV hyperspectral images
作者:Xu, Xiaobin;Teng, Cong;Zhu, Hongchun;Li, Zhenhai;Teng, Cong;Feng, Haikuan;Zhao, Yu
关键词:hyperspectral imagery; unmanned aerial vehicle; winter wheat; yield prediction model; remote sensing
-
A Two-Stage Leaf-Stem Separation Model for Maize With High Planting Density With Terrestrial, Backpack, and UAV-Based Laser Scanning
作者:Lei, Lei;Lei, Lei;Li, Zhenhong;Li, Zhenhong;Yang, Hao;Xu, Bo;Yang, Guijun;Hoey, Trevor B.;Wu, Jintao;Yang, Xiaodong;Feng, Haikuan;Yang, Guijun;Yang, Guijun
关键词:Vegetation mapping; Laser radar; Point cloud compression; Feature extraction; Agriculture; Data models; Data mining; Different cultivars; different growth stages; different planting densities; different platforms; light detection and ranging (LiDAR) data; simulated datasets; two-stage leaf-stem separation model
-
Remote sensing of quality traits in cereal and arable production systems: A review
作者:Li, Zhenhai;Fan, Chengzhi;Li, Zhenhai;Zhao, Yu;Song, Xiaoyu;Yang, Guijun;Jin, Xiuliang;Casa, Raffaele;Huang, Wenjiang;Blasch, Gerald;Taylor, James;Li, Zhenhong
关键词:Remote sensing; Quality traits; Grain protein; Cereal
-
A method to rapidly construct 3D canopy scenes for maize and their spectral response evaluation
作者:Zhao, Dan;Xu, Tongyu;Yang, Hao;Zhang, Chengjian;Cheng, Jinpeng;Yang, Guijun;Henke, Michael
关键词:3D maize canopy scene; Functional-structural model; Canopy structure; 3D radiative transfer; Spectral response
-
Analyzing winter-wheat biochemical traits using hyperspectral remote sensing and deep learning
作者:Yue, Jibo;Wang, Jian;Guo, Wei;Ma, Xinming;Qiao, Hongbo;Yang, Guijun;Liu, Yang;Feng, Haikuan;Yue, Jibo;Yang, Guijun;Li, Changchun;Niu, Qinglin;Feng, Haikuan
关键词:Unmanned aerial vehicle; Transfer learning; Deep learning; Hyperspectral



