Special Section on Advances in Remote Sensing Applications for Locust Habitat Monitoring and Management Part II

Using the enhanced vegetation index for deriving risk maps of desert locust (Schistocerca gregaria, Forskal) breeding areas in Egypt

[+] Author Affiliations
Osama Rabie Mahmoud Moustafa

General Department for Locust and Agro-Aviation Affairs, Ministry of Agriculture, Wezaret Al Zeraa, Dokki, Giza, Cairo, Egypt

Keith Cressman

Food and Agriculture Organization of the United Nations, Desert Locust Information Service, viale delle terme di Caracalla, 00153 Rome, Italy

J. Appl. Remote Sens. 8(1), 084897 (Nov 24, 2015). doi:10.1117/1.JRS.8.084897
History: Received October 10, 2014; Accepted October 23, 2015
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Abstract.  This study utilizes moderate resolution imaging spectroradiometer-enhanced vegetation index (EVI) imagery for deriving risk maps of desert locust breeding areas and proposes a simple EVI reclassification scheme that can be easily interpreted and used by field teams in Egypt during regular surveys. The proposed scheme was based on analysis of EVI imagery and locust survey data collected in southeast Egypt during a locust outbreak in 2011. It was found that areas with an EVI value of <0.05 were less likely to have locust breeding, areas with a value between 0.05 and 0.1 contained large-sized infestations with low to medium densities of locusts, and areas with EVI>0.1 hosted large-sized infestations with medium to high densities. The accuracy of the proposed reclassification was evaluated in the field during the winter breeding season of 2013, which coincided with another locust outbreak. The results suggest that the risk maps derived from reclassified EVI imagery represent a potentially useful tool for survey teams to use on a regular basis to better guide them to potential locust breeding sites. This could lead to surveys that are more efficient and effective in monitoring desert locust infestations in Egypt.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Topics

Vegetation

Citation

Osama Rabie Mahmoud Moustafa and Keith Cressman
"Using the enhanced vegetation index for deriving risk maps of desert locust (Schistocerca gregaria, Forskal) breeding areas in Egypt", J. Appl. Remote Sens. 8(1), 084897 (Nov 24, 2015). ; http://dx.doi.org/10.1117/1.JRS.8.084897


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