DOI: 10.1016/j.atmosenv.2013.09.028
Scopus记录号: 2-s2.0-84887182577
论文题名: LIDAR as an alternative to passive collectors to measure pesticide spray drift
作者: Gregorio E ; , Rosell-Polo J ; R ; , Sanz R ; , Rocadenbosch F ; , Solanelles F ; , Garcerá C ; , Chueca P ; , Arnó J ; , del Moral I ; , Masip J ; , Camp F ; , Viana R ; , Escolà A ; , Gràcia F ; , Planas S ; , Moltó E
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 82 起始页码: 83
结束页码: 93
语种: 英语
英文关键词: Agriculture
; Droplet
; Light detection and ranging
; Remote sensing
; Sprayer
; Tracer
Scopus关键词: Coefficient of determination
; Information concerning
; LIDAR (light detection and ranging)
; Light detection and ranging
; Meteorological parameters
; Sprayer
; Tracer
; Water sensitive paper
; Agriculture
; Analytical models
; Drops
; Models
; Optical radar
; Pesticides
; Polyamides
; Rayon
; Remote sensing
; Testing
; Atmospherics
; pesticide
; agricultural practice
; cost-benefit analysis
; lidar
; measurement method
; numerical model
; parameterization
; pesticide
; remote sensing
; resolution
; risk factor
; spatiotemporal analysis
; spray
; analytic method
; anemometer
; article
; cloud
; light detection and ranging
; materials
; meteorology
; optical depth
; paper
; particle size
; pesticide spraying
; physical parameters
; plume
; priority journal
; refraction index
; remote sensing
; theoretical model
; velocity
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Pesticide spray drift entails a series of risks and costs in terms of human, animal and environmental well-being. A proper understanding of this phenomenon is essential to minimise these risks. However, most conventional methods used in drift measurement are based on point collectors which are unable to obtain information concerning the temporal or spatial evolution of the pesticide cloud. Such methods are also costly, labour-intensive, and require a considerable amount of time. The aim of this paper is to propose a method to measure the spray drift based on lidar (LIght Detection And Ranging) and to prove that it can be an alternative to passive collectors. An analytical model is proposed to relate the measurements obtained through passive collectors and those obtained with lidar systems considering several spray application and meteorological parameters. The model was tested through an experimental campaign involving multiple ground spray tests. A lidar system and two types of passive collectors (nylon strings and water-sensitive paper) were used simultaneously to measure the drift. The results showed for each test a high coefficient of determination (R2≈0.90) between the lidar signal and the tracer mass captured by the nylon strings. This coefficient decreased (R2=0.77) when all tests were considered together. Lidar measurements were also used to study the evolution of the pesticide cloud with high range (1.5m) and temporal resolution (1s) and to estimate its velocity. Furthermore, a very satisfactory adjustment (R2=0.89) was observed between the tracer mass collected by the nylon lines and the coverage on water-sensitive paper sheets. These results are in accordance with the proposed analytical model and allow the conclusion that the application and meteorological parameters can be considered spatially invariant for a given test but are not invariant for different tests. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80944
Appears in Collections: 气候变化事实与影响
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作者单位: Research Group in AgroICT and Precision Agriculture, Department of Agricultural and Forest Engineering, Universitat de Lleida (UdL), Edifici CREA, c/Pere de Cabrera s/n, 25001 Lleida, Spain; Remote Sensing Laboratory, Department of Signal Theory and Communications, Universitat Politècnica de Catalunya (UPC)/IEEC-CRAE, Barcelona, Spain; Centre de Mecanització Agrària, Department of Agriculture, Livestock, Fisheries, Food and Natural Environment, Generalitat de Catalunya, Lleida, Spain; Centro de Agroingeniería, Instituto Valenciano de Investigaciones Agrarias (IVIA), Moncada, Valencia, Spain
Recommended Citation:
Gregorio E,, Rosell-Polo J,R,et al. LIDAR as an alternative to passive collectors to measure pesticide spray drift[J]. Atmospheric Environment,2014-01-01,82