Monitoring grasshopper and locust habitats in Sahelian Africa using GIS and remote sensing technology†
| Autor: | Walter I. Knausenberger, Donald G. Moore, G. Gray Tappan |
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| Rok vydání: | 1991 |
| Předmět: |
Geographic information system
biology business.industry Geography Planning and Development Vegetation Library and Information Sciences biology.organism_classification Crop protection Geography Habitat Remote sensing (archaeology) General Earth and Planetary Sciences Satellite imagery business Grasshopper Locust Information Systems Remote sensing |
| Zdroj: | International journal of geographical information systems. 5:123-135 |
| ISSN: | 0269-3798 |
| DOI: | 10.1080/02693799108927836 |
| Popis: | Development programmes in Sahelian Africa are beginning to use geographic information system (GIS) technology. One of the GIS and remote sensing programmes introduced to the region in the late 1980s was the use of seasonal vegetation maps made from satellite data to support grasshopper and locust control. Following serious outbreaks of these pests in 1987, the programme addressed a critical need, by national and international crop protection organizations, to monitor site-specific dynamic vegetation conditions associated with grasshopper and locust breeding. The primary products used in assessing vegetation conditions were vegetation index (greenness) image maps derived from National Oceanic and Atmospheric Administration satellite imagery. Vegetation index data were integrated in a GIS with digital cartographic data of individual Sahelian countries. These near-real-time image maps were used regularly in 10 countries for locating potential grasshopper and locust habitats. The programme to monitor... |
| Databáze: | OpenAIRE |
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