Relationship between the information of an IRS-1C WiFS satellite image and forest parameters in the Grazalema's Spanish fir forests
2005
Cuevas Gozalo, José Miguel | González-Alonso, F. | Merino-de-Miguel, S.
The Mediterranean fir Abies pinsapo Boiss. in sierra del Pinar, province of Cádiz, Spain, is studied using the information of an IRS-1C WiFS satellite image and data derived from ground plots of the Second National Forest Inventory of Spain. As forest parameters have been used the number of trees, the basal area and the stem wood volume with bark. For all the ground plots in the study area there is an statistically significant relationship between stem wood volume with bark of all species and WiFS NDVI at the 90% confidence level. In the case of the plots with appreciable presence of Abies pinsapo there is an statistically significant relationship at the 95% confidence level between WiFS NDVI and both stem wood volume with bark of all species and stem wood volume with bark of Abies pinsapo. Stem wood volume with bark images were obtained for the study area, one using data from all the ground plots and other using only data from the ground plots with appreciable presence of Abies pinsapo. The relationship between the estimated percent of stem wood volume with bark of Abies pinsapo and its potentially occupied area was later analysed.
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