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Quantifying Bush Encroachment in Madikwe Game Reserve, South Africa

机译:量化南非Madikwe Game Reserve中的布什侵占

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摘要

Textural analyses of historical, high resolution images was used to characterize bush densities across Madikwe Game Reserve, South Africa. 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.
机译:历史的高分辨率图像的纹理分析被用来表征南非Madikwe Game Reserve的灌木丛密度。假定在图像记录期间(1955-1996年)植被变化最小的控制点用于标准化多日期图像之间的纹理值。然后使用简单的线性回归模型将标准化的纹理值转换为木冠层覆盖率的估计值。结果表明,1955年至1996年间,木本植物覆盖率相对增加了30%。

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