Physical and chemical study of the rivers of the Sil Basin (Leon, Spain)

Aláez, Camino Fernández; Aláez, Margarita Fernández; Bécares, Eloy

doi:10.1080/03680770.1989.11899112

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…broteriana, while mosses, specially Hyocomium armoricum, were frequent near the water. The most northern sites of the study area, with calcareous substratum (Ferna´ndez-Ala´ez et al 1991), were ordinated towards the negative end of the second axis. Shrub formations dominated by Salix · expectata and Salix · pormensis occupied the wetted channel of these stretches, while the most frequent herbaceous species were calcicole elements such as Tussilago farfara, Astrantia major and Chaerophyllum aureum (Figure 3).…”

Section: Ordinationmentioning

confidence: 99%

Spatial distribution pattern of the riparian vegetation in a basin in the NW Spain

Fernández‐Aláez

Garcáa-Criado

2005

Plant Ecol

View full text Add to dashboard Cite

The riparian vegetation of a basin in the NW Spain was studied to establish its spatial variation pattern and to relate floristic and structural differences in the community to environmental factors. Eighty-seven sampling units in 43 sampling stations were used. Samples were classified in 5 groups using Two Way Indicator Species Analysis (TWINSPAN). Three groups represented reaches with riparian wood along their banks: Mediterranean alderwoods and shrubby willow woods. The remaining two corresponded to floodplains with vegetation colonizing moderately eutrophicated deposits of gravel. Structural characteristics of richness and diversity differentiated the alder woods. In these, the shaded environment created by the woody species limited herbaceous vegetation development. This was dominated by Carex acuta subsp. broteriana. Classification and CCA ordination results were compared. The TWINSPAN groups could be recognized in the CCA graph. The ordination was related to a pollution gradient associated with altitude. This pollution gradient involved bank ruderalization, incorporation of nitrophilous species and a decrease in the vegetation quality. The influence of the lithological features on vegetation was also evident.

show abstract

Section: Ordinationmentioning

confidence: 99%