Mapping vineyard leaf area using mobile terrestrial laser scanners: should rows be scanned on-the-go or discontinuosly sampled?
| العنوان: | Mapping vineyard leaf area using mobile terrestrial laser scanners: should rows be scanned on-the-go or discontinuosly sampled? |
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| المؤلفون: | Ignacio del-Moral-Martínez, Joan Rosell-Polo, Joaquim Company, Ricardo Sanz, Alexandre Escolà, Joan Masip, José Martínez-Casasnovas, Jaume Arnó |
| المصدر: | Repositorio Abierto de la UdL Universitad de Lleida Sensors, Vol 16, Iss 1, p 119 (2016) Sensors; Volume 16; Issue 1; Pages: 119 Recercat. Dipósit de la Recerca de Catalunya instname Sensors (Basel, Switzerland) |
| بيانات النشر: | Molecular Diversity Preservation International, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | 0106 biological sciences, LiDAR, Mobile terrestrial laser scanner, Laser scanning, lcsh:Chemical technology, 01 natural sciences, Biochemistry, Article, Analytical Chemistry, Multivariate interpolation, Fuzzy Logic, Image Processing, Computer-Assisted, Vitis, lcsh:TP1-1185, precision viticulture, Electrical and Electronic Engineering, Leaf area index, Instrumentation, lidar, Mathematics, Remote sensing, Vegetation mapping, Viticulture, Viticultura, Sampling (statistics), Agriculture, Systematic sampling, 04 agricultural and veterinary sciences, computer.file_format, Atomic and Molecular Physics, and Optics, LAI, Plant Leaves, vegetation maps, Precision viticulture, Cartografia de la vegetació, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, mobile terrestrial laser scanner, Raster graphics, Row, computer, Algorithms, 010606 plant biology & botany |
| الوصف: | The leaf area index (LAI) is defined as the one-side leaf area per unit ground area, and is probably the most widely used index to characterize grapevine vigor. However, LAI varies spatially within vineyard plots. Mapping and quantifying this variability is very important for improving management decisions and agricultural practices. In this study, a mobile terrestrial laser scanner (MTLS) was used to map the LAI of a vineyard, and then to examine how different scanning methods (on-the-go or discontinuous systematic sampling) may affect the reliability of the resulting raster maps. The use of the MTLS allows calculating the enveloping vegetative area of the canopy, which is the sum of the leaf wall areas for both sides of the row (excluding gaps) and the projected upper area. Obtaining the enveloping areas requires scanning from both sides one meter length section along the row at each systematic sampling point. By converting the enveloping areas into LAI values, a raster map of the latter can be obtained by spatial interpolation (kriging). However, the user can opt for scanning on-the-go in a continuous way and compute 1-m LAI values along the rows, or instead, perform the scanning at discontinuous systematic sampling within the plot. An analysis of correlation between maps indicated that MTLS can be used discontinuously in specific sampling sections separated by up to 15 m along the rows. This capability significantly reduces the amount of data to be acquired at field level, the data storage capacity and the processing power of computers. This work was partially funded by the Spanish Ministry of Economy and Competitiveness (research projects SAFESPRAY—AGL2010-22304-C04-03 and AGVANCE—AGL2013-48297-C2-2-R). |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::156b25627da0ce2e7c1ffbe391a994c6 https://hdl.handle.net/10459.1/49390 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....156b25627da0ce2e7c1ffbe391a994c6 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |