0000000000000662
AUTHOR
Benedetti A
Gypsum and Halite Deposition on Cyanobacteria and Algae in Salt‐Affected Soils.
Soil surface communities are different from those of bulk soil due to the development of photo‐ synthetic communities comprising cyanobacteria, algae, and other bacteria which contribute to the formation of biological soil crusts. The structure of ecological niches forming biological crusts in saline soil environments is characterized by communities dominated by extremophiles organisms like archea, halophilic bacteria and cyanobacteria that can have a direct or indirect role in shaping soil properties. For example gypsum and halite were found by some authors as‐ sociated with the cyanobacterium Entophysalis (Braithwaite and Whitton, 1987); moreover the crystallization of gypsum and halite a…
Indagini sul ruolo pedogenetico dei polifenoli.2. Variabilità delle forme polifenoliche in relazione a genesi, orizzontazione e uso del suolo
Atlante di indicatori della qualità del suolo- Scheda 5: area sperimentale università di Palermo, Pietranera, Agrigento
Humic substances along the profile of two Typic Haploxerert.
In Vertisols, organic matter contributes to soil colour by formation of organo-mineral complexes and affects morphological, physico-chemical, biological and biochemical properties. Turbation may affect the chemical and structural composition of the most stabilised fractions of soil organic matter (SOM), i.e., humic substances (HS). The objectives of this study were to: (1) characterise SOM in two Vertisols (V1 and V2) developed under Mediterranean climate in Italy, using some HS characteristics as indicators of SOM turnover in Vertisols, and (2) explore possible differences related to the pedomorphologic conditions of the area under which two soils have formed. SOM evolution along the soil …