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Insect abundance over Chinese rice fields in relation to environmental parameters, studied with a polarization-sensitive CW near-IR lidar system

Zhu, Shiming; Malmqvist, Elin LU ; Li, Wansha; Jansson, Samuel LU ; Li, Yiyun; Duan, Zheng; Svanberg, Katarina LU ; Feng, Hongqiang; Song, Ziwei and Zhao, Guangyu, et al. (2017) In Applied Physics B: Lasers and Optics 123(7).
Abstract

Effective monitoring of flying insects is of major societal importance in view of the role of insects as indispensable pollinators, destructive disease vectors and economically devastating agricultural pests. The present paper reports on monitoring of flying agricultural pests using a continuous-wave lidar system in a rice-field location in Southern China. Using a Scheimpflug arrangement, range resolution over several 100 m long observational paths was achieved. The system operates with two perpendicularly polarized near-infrared lasers, which are activated intermittently, and back-scattered radiation from insects was recorded by a linear array detector placed after a linear polarizer. Our polarization sensitive system was used to... (More)

Effective monitoring of flying insects is of major societal importance in view of the role of insects as indispensable pollinators, destructive disease vectors and economically devastating agricultural pests. The present paper reports on monitoring of flying agricultural pests using a continuous-wave lidar system in a rice-field location in Southern China. Using a Scheimpflug arrangement, range resolution over several 100 m long observational paths was achieved. The system operates with two perpendicularly polarized near-infrared lasers, which are activated intermittently, and back-scattered radiation from insects was recorded by a linear array detector placed after a linear polarizer. Our polarization sensitive system was used to monitor the flying insect diurnal activity and also the influence of changes in weather conditions, e.g., the occurrence of rain. Activity strongly peaked at dusk and rose again, although to a lower extent, just before dawn. At the onset of rainfall, a strong increase in insect counts occurred which was interpreted as the rain-induced bringing down of high-altitude migrant insects.

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Applied Physics B: Lasers and Optics
volume
123
issue
7
publisher
Springer
external identifiers
  • scopus:85023639825
  • wos:000405506200017
ISSN
0946-2171
DOI
10.1007/s00340-017-6784-x
language
English
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yes
id
b78d8fd5-1ee8-47f2-ab97-9005e1d4031a
date added to LUP
2017-07-27 12:56:02
date last changed
2017-09-18 11:40:03
@article{b78d8fd5-1ee8-47f2-ab97-9005e1d4031a,
  abstract     = {<p>Effective monitoring of flying insects is of major societal importance in view of the role of insects as indispensable pollinators, destructive disease vectors and economically devastating agricultural pests. The present paper reports on monitoring of flying agricultural pests using a continuous-wave lidar system in a rice-field location in Southern China. Using a Scheimpflug arrangement, range resolution over several 100 m long observational paths was achieved. The system operates with two perpendicularly polarized near-infrared lasers, which are activated intermittently, and back-scattered radiation from insects was recorded by a linear array detector placed after a linear polarizer. Our polarization sensitive system was used to monitor the flying insect diurnal activity and also the influence of changes in weather conditions, e.g., the occurrence of rain. Activity strongly peaked at dusk and rose again, although to a lower extent, just before dawn. At the onset of rainfall, a strong increase in insect counts occurred which was interpreted as the rain-induced bringing down of high-altitude migrant insects.</p>},
  articleno    = {211},
  author       = {Zhu, Shiming and Malmqvist, Elin and Li, Wansha and Jansson, Samuel and Li, Yiyun and Duan, Zheng and Svanberg, Katarina and Feng, Hongqiang and Song, Ziwei and Zhao, Guangyu and Brydegaard, Mikkel and Svanberg, Sune},
  issn         = {0946-2171},
  language     = {eng},
  month        = {07},
  number       = {7},
  publisher    = {Springer},
  series       = {Applied Physics B: Lasers and Optics},
  title        = {Insect abundance over Chinese rice fields in relation to environmental parameters, studied with a polarization-sensitive CW near-IR lidar system},
  url          = {http://dx.doi.org/10.1007/s00340-017-6784-x},
  volume       = {123},
  year         = {2017},
}