Abstract
The plant-environment relationships in a range of matorral communities, having different rainfall conditions in semi-arid lowland habitats in Murcía, S.E. Spain, were examined using the non-metric multidimensional scaling ordination technique. Hypotheses on floristic variations were derived based on an interpretative strategy which involved a site configuration rotation, followed by stepwise multiple regression analysis. An environmental data set was used to isolate variables associated with site co-ordinate trends. Results showed that floristic variation in these communities was mainly determined by aspect induced radiation receipt. Besides, most environmental trends in the study areas were found to be oblique to original site ordination axes and configuration rotation seemed to be a prerequisite in quantitative interpretation. The interpretative strategy introduced in this study was effective. It enhanced straightforward, quantitative and objective interpretation whereby inductive inferences on environmental trends could be readily formulated.
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Abbreviations
- ARAD:
-
radiation receipt surrogate
- DEPTH:
-
soil depth
- DISTURB:
-
disturbance index
- NMDS:
-
non-metric multidimensional scaling
- NUT:
-
nutrient scalar
- SLOPE:
-
slope angle
- TEXTIN:
-
texture index
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Tong, S.T.Y. On non-metric multidimensional scaling ordination and interpretation of the matorral vegetation in lowland Murcía. Vegetatio 79, 65–74 (1988). https://doi.org/10.1007/BF00044849
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DOI: https://doi.org/10.1007/BF00044849