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Details van artikel 157 van 250 gevonden artikelen
| Titel: |
Monitoring vegetation cover over diverse landscape types in semiarid South Eastern Botswana |
| Auteur: |
Dube, Opha P. |
| Verschenen in: |
Geocarto international |
| Paginering: | Jaargang 13 (1998) nr. 2 pagina's 43-51 |
| Jaar: |
1998-06 |
| Inhoud: |
Vegetation cover from six landscape types was related to Landsat MSS and SPOT multispectral (SPOT XS) single bands and indices derived from red (RED) and near-infrared (NIR) (NDVI), and RED and green (GREEN) (NDGR) bands at three levels: individual landscapes, across landscapes and between landscapes. Individual landscapes exhibited different relationships with the SPOT XS bands and indices. Relatively weak relationships were observed across landscapes with better results on the RED band, r2 of 0. 75 and 0.71 (P>0.001) for MSS and SPOT XS, respectively. Higher r2 of up to 0.93 (P>0.01) in MSS NDVI based on the RED and NIR band 3, and 0.85 (P>0.01) in SPOT XS RED band were established between landscapes. Variation in vegetation cover within landscapes was significantly different from variation across landscapes at P> 0.01. The study demonstrated the importance of stratifying landscape at the appropriate scale for vegetation studies in semi-arid lands of Botswana. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 157 van 250 gevonden artikelen
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