Search results for "salt-marsh"
showing 3 items of 3 documents
Halophytic vegetation and adjoining plant communities in Middle Asia (Pamir-Alai and western Tian Shan)
2021
In this paper, we complete the syntaxonomical scheme for halophytic vegetation and adjoining plant communities of the lowland, montane and alpine zones in the Pamir-Alai and western Tian Shan in Tajikistan and Kyrgyzstan with some remarks on its environmental predictors. A total of 217 relevés were sampled in 2014–2019 using the seven-degree cover-abundance scale of the Braun-Blanquet approach. Modified TWlNSPAN was used to classify plant communities based on species composition. The cover-abundance scale was transformed using the four-step interval scale with cut-off levels at 0%, 5% and 25%. Diagnostic species were identified using the phi coefficient as a fidelity measure. Non-metric Mul…
Soil chemical and biochemical properties of a salt-marsh alluvial Spanish area after long-term reclamation
2009
Marisma, one of the largest salt-marsh alluvial areas in SW Spain, has been reclaimed since 1970 by artificial drainage and amendment with phosphogypsum (PG) so as to reduce Na+ saturation. Within the reclaimed area, two 250- × 20-m plots were treated as follows: (1) amendment with 25 Mg/ha of PG every 2 to 3 years between 1979 and 2003 (plot PY); (2) like PY but PG treatment stopped after 1997 (plot DR). A contiguous virgin Marisma salt-marsh plot (MV), neither drained nor amended, was the control. In MV, soil microbial biomass C, most enzyme activities and total organic C content were much greater than in PY and DR soils, despite the salinity stress. The decrease in soil organic matter co…
Estudio de los taxa afines a Limonium vulgare Miller de marismas de Portugal Continental
2012
Master de Biodiversidad: Conservacion y evolucion - Universitat de Valencia. Facultat de Ciencies Biologiques / Instituto Superior de Agronomia The genus Limonium Miller is a highly complex taxonomic group and a large number of micro-species has been described as a result of their reproductive strategies, sexual and/or apomixis. In Portugal, there are few and old studies on Limonium species, although the country has exceptional conditions for their presence, given that they inhabit rocky cliffs, beaches and salt-marshes. This study was intended to clarify the identity of ambiguous specimens related to taxon Limonium vulgare Miller, typical in the salt-marshes of Continental Portugal. We per…