A GIS-based modeling approach to predicting cave disturbance in karst landscapes: a case study from west-central Florida

Autor: Jason S. Polk, Leslie A. North, Mark Van Aken, James F. Dickens, Grant L. Harley
Rok vydání: 2014
Předmět:
Zdroj: Physical Geography. 35:123-133
ISSN: 1930-0557
0272-3646
DOI: 10.1080/02723646.2014.898198
Popis: We present a GIS-based cave disturbance model (CDM) that can be used as a tool to predict the disturbance of cave systems. To validate our model, we compare results to an in situ cave disturbance index (CDI) that was applied to 36 terrestrial caves during the year 2007 in west-central Florida. The CDM demonstrated high-performance skill and produced similar disturbance scores compared to the CDI. The CDM disturbance scores ranged from 0.22 (minimum) to 0.78 (maximum), and the mean disturbance score for all 36 caves was 0.45. The mean of the CDI scores was 0.40, but the difference between means was not significantly different (p = 0.147, t-test). Disturbance scores from the CDM and CDI were significantly correlated (R = 0.45, R2 = 0.20; p
Databáze: OpenAIRE