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Publication Information

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Title: Textural analysis of high resolution imagery to quantify bush encroachment in Madikwe Game Reserve, South Africa, 1955-1996

Author: Hudak, A. T.; Wessman, C.A.

Date: 2001

Source: International Journal of Remote Sensing. 22(14): 2731-2740.

Publication Series: Scientific Journal (JRNL)

Description: Fire suppression associated with decades of cattle grazing can result in bush encroachment in savannas. Textural analyses of historical, high resolution images was used to characterize bush densities across a South African study landscape. A control site, where vegetation was assumed to have changed minimally for the duration of the image record (1955-1996), was used to standardize textural values between multidate images. Standardized textural values were then converted to estimates of percent woody canopy cover using a simple linear regression model. Results indicate a 30% relative increase in percent woody cover between 1955 and 1996.

Keywords: textural analysis, high resolution imagery, bush encroachment, Madikwe Game Reserve, South Africa, fire suppression

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

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Hudak, A. T.; Wessman, C.A. 2001. Textural analysis of high resolution imagery to quantify bush encroachment in Madikwe Game Reserve, South Africa, 1955-1996. International Journal of Remote Sensing. 22(14): 2731-2740.

 


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