Analysis and assessment of mountain pastures by integration of multispectral and ancillary data

作者：Argenti Giovanni^*; Bottai Lorenzo; Chiesi Marta; Maselli Fabio; Stagliano Nicolina; Targetti Stefano

来源：Italian Journal of Remote Sensing, 2011, 43(1): 45-57.

• remote sensing
• pastoral value
• vegetation
• GIS
• multispectral images

The paper shows some operational techniques for the characterisation and mapping of pastoral resources in mountain areas. The utility of multispectral images was evaluated to produce thematic cartography of the studied pastures and to determine their pastoral value, a useful parameter for management purposes. Data collected by the multispectral ASTER sensor; with a 15 in spatial resolution in the VISNIR, 30 in in the SIR, and 90 in in TIR, and the MODIS sensor; with a daily temporal step and a 250 in spatial resolution, were used. The images are classified using a maximum likelihood algorithm, while multivariate locally calibrated regression is applied to extend the pastoral value over the whole area. Results show a low capability of the satellite images in discriminating the different pasture vegetation types, whereas the assessment of pastoral value produces more promising achievements (r = 0.647; RMSE = 6.99).

• 出版日期2011