Development of an agricultural land-use GIS for Senegal derived from multispectral video and photographic data

S. E. Marsh, J. L. Walsh, C. F. Hutchinson

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Traditionally, recession agriculture has played a major role in crop production in much of the Senegal River Valley. This agricultural system, in which crops are planted in floodplains after seasonal floods have inundated an area and have receded, requires small inputs of capital and labor. The environmental condition of these recession zones has been affected by recent drought and desertification in the Sahel, and has thus become an area of increasing concern. The recent development of a series of dams and hydro-agriculture projects along the Senegal River could have a significant impact on long-term land-use patterns. To help define currently prevalent land-use patterns within a portion of the Senegal River Basin, these patterns were mapped in a region of Senegal through the combined application of remote sensing and geographic information system (GIS) technologies. This project established that airborne multispectral video data, paired with 35-mm photography, can be used for agricultural land-use mapping. Images were manually interpreted to map a series of land-use classes characteristic of recession agricultural crop production. GIS functions were used to digitize the classes and generate a series of land-use maps. -from Authors

Original languageEnglish (US)
Pages (from-to)351-357
Number of pages7
JournalPhotogrammetric Engineering & Remote Sensing
Volume56
Issue number3
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Computers in Earth Sciences

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