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precedente: S6.5
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livello superiore: S6
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seguente: S6.7
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S6.6 - Remote-sensing survey for the assessment of land use diversity - even
remote from reality?
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Rocchini Duccio (1)*,
Maccherini Simona (1),
Chiarucci Alessandro (1),
Marignani Michela (1),
Boddi Manuela (1),
Pellizzi Bernardo (1),
Cirillo Ilaria (1),
Baffetta Federica (2),
Ferretti Marco (1)
| (1) |
Dipart. di Scienze Ambientali 'G. Sarfatti', Università degli
Studi di Siena, Via Mattioli 4, 53100 Siena, Italia |
| (2) |
Dipart. di Metodi Quantitativi, Università degli Studi di
Siena, Piazza S. Francesco, 53100 Siena, Italia |
| * |
rocchini@unisi.it |
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Aerial-based survey represents one of the most powerful tools for the
assessment and monitoring of land use diversity. In particular, multi-temporal
analysis of air-borne imagery is one of the most used approaches to directly
estimate land use changes. However, several problems may arise when dealing
with aerial photo interpretation. In particular, thematic classification is
structurally, functionally and operationally dependent on the scale at which
the interpretation is carried out. Ecological processes occur at defined
scales: while their perception depends upon a proper matching with the adopted
approach, it is also important that classification attributes fit into some
agreed framework, like e.g. the CORINE system, which in turn requires minimum
dimensional attributes to be satisfied. In this study, 981 sampling units were
selected according to an area-frame stratified random sampling with a
predefined cell dimension (e.g. at a given scale, 50x50 and 10x10 m) over a
215 km2 area in countryside Tuscany. The landscape is dominated by arable
lands and characterised by 'calanchi' and ' biancane'. The survey was carried
out to test the feasibility of land-use diversity assessment at landscape
scale and its change over the time, by means of statistical linear
estimators.
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consulta l' Indice analitico (alfabetico per autore) |
sfoglia l' Indice delle sessioni del Congresso |
a cura di Comoglio, Comino, e Bona
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