Soil Algae in Field and Forest Environments

Abstract

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Regeneration processes of biological soil crusts, macro-cryptogams and vascular plant species after fine-scale disturbance in a temperate region: Recolonization or successional replacement?

“…The organisms are concentrated within a few millimetres on and below the soil surface. BSCs normally represent a primary successional stage (Kurina and Vitousek, 1999;Lukešov a, 2001;Rayburn et al, 1982), but they can also be important in secondary succession (Ahti and Oksanen, 1990;Booth, 1941;Hunt et al, 1979) or form the climax in semi-arid and arid regions. The first stages are mainly characterised by cyanobacteria and algae (Belnap and Eldridge, 2001;Eldridge and Green, 1994), therefore in this study we differentiate cyanobacteria/algae stages as BSCs s.str.…”

Soil Ph and Its Role in Cyanobacterial Abundance and Diversity in Rice Field Soils

“…Species of Nostoc, Anabaena, Tolypothrix, Aulosira, Cylindrospermum, Scytonema, Westiellopsis and several other genera are widespread in Indian rice field soils and are known to contribute significantly to their fertility [29,9'15]. There are very few reports on the existence of cyanobacteria at low pH (acidic range) as they are in general, intolerant to low pH conditions [1,8,5] Among the diverse habitats, rice fields constitute one of the favourable ecologies for the growth and proliferation of cyanobacteria [30,26,14]. In the 1970s, algalization or the enrichment of soil via inoculation of selected cyanobacterial strains led to the promotion of these biofertilisers among the farming community in South East Asia [26,28].…”

The Biology of Canadian Weeds. 141. Setaria faberi Herrm.

“…(Spyreas et al 2001). In old-field communities in New Jersey, S. faberi was the dominant species and highly competitive with Ambrosia artemisiifolia, Calystegia sepium L., Digitaria sanguinalis, Oxalis stricta, Panicum dichotomiflorum Michx., and Solanum carolinense (Hunt et al 1979;Facelli and Pickett 1991a). Raynal and Bazzaz (1975) found S. faberi in abandoned Illinois fields with Ambrosia artemisiifolia, Polygonum pensylvanicum L., Abutilon theophrasti, and Chenopodium album.…”