Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.12911/22998993/118274 |
Sweet Corn Yield Simulation Using Normalized Difference Vegetation Index and Leaf Area Index | |
Lykhovyd, Pavlo | |
通讯作者 | Lykhovyd, P |
来源期刊 | JOURNAL OF ECOLOGICAL ENGINEERING
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ISSN | 2299-8993 |
出版年 | 2020 |
卷号 | 21期号:3页码:228-236 |
英文摘要 | The authors determined the accuracy and reliability of yielding models by using the values of two differently obtained indices - the leaf area index (LAI) obtained through direct surface measurements, and the normalized difference vegetation index (NDVI) obtained through spatial remote sensing of crops. The study based on the drip-irrigated sweet corn yielded the data obtained in the field experiment held in the semi-arid climate on dark-chestnut soil in the South of Ukraine. The suitability of the LAI and NDVI for the simulation of sweet corn yields was estimated by the regression analysis of the yielding data by correlation (R) and determination (R-2) coefficients. Additionally, mathematical models for the crop yields estimation based on the regression analysis were developed. It was determined that LAI is a more suitable index for the crop yield prediction: the R-2 value was 0.92 and 0.94 against 0.85 for the NDVI-based models.I It was determined that it is better to use the LAI values obtained at the stage of flowering, when R-2 averaged to 0.94, and the NDVI-based models does not depend on the crop stage (the R-2 was 0.85 both for the flowering and ripening stages of the plant development). The combined NDVI-LAI model showed that there is no necessity in the complication of the LAI-based model through introduction of the remotely sensed index because of insignificant improvement in the performance (R-2 was 0.94 and 0.92). |
英文关键词 | direct measurements mathematical model regression analysis remote sensing sweet corn yield prediction |
类型 | Article |
语种 | 英语 |
开放获取类型 | Other Gold |
收录类别 | ESCI |
WOS记录号 | WOS:000526862500028 |
WOS关键词 | NDVI ; MODEL ; PHOTOSYNTHESIS ; REFLECTANCE ; INFORMATION ; PREDICTION ; EVI ; LAI |
WOS类目 | Engineering, Environmental |
WOS研究方向 | Engineering |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/334313 |
作者单位 | [Lykhovyd, Pavlo] Inst Irrigated Agr NAAS, Dept Sci & Innovat Act, Transfer Technol & Intellectual Property, UA-73483 Naddniprianske, Kherson, Ukraine |
推荐引用方式 GB/T 7714 | Lykhovyd, Pavlo. Sweet Corn Yield Simulation Using Normalized Difference Vegetation Index and Leaf Area Index[J],2020,21(3):228-236. |
APA | Lykhovyd, Pavlo.(2020).Sweet Corn Yield Simulation Using Normalized Difference Vegetation Index and Leaf Area Index.JOURNAL OF ECOLOGICAL ENGINEERING,21(3),228-236. |
MLA | Lykhovyd, Pavlo."Sweet Corn Yield Simulation Using Normalized Difference Vegetation Index and Leaf Area Index".JOURNAL OF ECOLOGICAL ENGINEERING 21.3(2020):228-236. |
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