Contribution to the Macrophytic Typology of Belgian Reference Watercourses

Figure 2

MFA ordination of all sites. Plot of the sites and their parameters on the two first axes (% variance axis 1 = 21.3, axis 2 = 13.3). Abbreviations: LOASIT: low altitude site, MEASIT: medium altitude site, HIASIT: high altitude site, EXHIASIT: extremely high altitude site, MEASP: medium altitude spring, HIASP: high altitude spring, VEHIASP: very high altitude spring, EXHIASP: extremely high altitude spring, MESLP: medium slope, STSLP: strong slope, EXSTSLP: extremely strong slope, SHAD: shady, MOSUNLIT: moderately sunlit, SUNLIT: sunlit, FF: deciduous forest, FR: conifer forest, FRF: deciduous and conifer forest, PRFR: meadow and conifer forest, PRFF: meadow and deciduous forest, PR: meadow, SCHI: shale, SAND BOUL: sand and boulder, BOUL: boulder, BEDR: bedrock, and SMALLBRO: small brooks. GEO1: Revinian, Devillian, and Salmian. GEO2: Gedinian. GEO3: Siegenian (Coblencian). GEO4: Emsian (lower and upper). GEO5: Frasnian, Givetian, Famennian, Tournaisian, and Visean. GEO6: Virtonian, Sinemurian, Toarcian, Bajocian, Keuperian, and Hettangian (details in Table 2).