University of Khartoum

The Effective Information Of Desert Locust And Desertification Monitoring In Sudan Using Ecogeographical And Geodatabase Modeling

The Effective Information Of Desert Locust And Desertification Monitoring In Sudan Using Ecogeographical And Geodatabase Modeling

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Title: The Effective Information Of Desert Locust And Desertification Monitoring In Sudan Using Ecogeographical And Geodatabase Modeling
Author: Eltoum, Mohammed AbdAlla
Abstract: Desert and its conditions have advanced more to the south threatening the populations and natural resources of many nations. Many geo-locationsof Sudan were subjected to complex desertification and locust outbreaks. The aim of this study is to model factors related to these disastrous problems. The data was obtained from Locust division at Plant Protection Directorate in Khartoum. Study revealed that high density of desert locust were registered during 2011, 2013and 2014 in specific geographic locations and at specific period of time. The ecological niche habitat of the Desert locust was identified and geo located using Ecogeographical model in GIS and RS environment. High correlation with both Latitude (R2 =0.73) and longitude (R2 =0.89) was detected. Also, desert locust density was strongly correlated with wet soils and subsequent damaged to vegetation (R2 =1). Generally, the desert locust density predicted in the niches was found to be greater than the FAO first threshold values for insecticide ground spraying control, (locust adult density per hectare > 200 insect) and less than the second threshold value for aerial insecticide spraying (locust adult density per hectare > 1000 insects). A set of maps were produced to visualize the locust distribution, its intensity and relation to various determinant factors. A model was designed and recommended to be used as a spatial decision support system for early warning to predict possible location and extent of the damage. This will guide appropriate way to combat desertification and minimize damages caused by Desert locust.
URI: http://khartoumspace.uofk.edu/123456789/24163


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