Search results for "PEDOLOGIA"
showing 10 items of 284 documents
La valorizzazione dei suoli a drenaggio imperfetto nell'ottica dei cambiamenti climatici nella Sicilia sud-occidentale
2008
Realizzazione della carta digitale dei suoli della Sicilia utilizzando il rilevamento GIS-oriented e un modello CLORPT
2011
Produrre una carta digitale dei suoli della Sicilia (1:250.000) di tipo quantitativo, che combinasse l’approccio tradizionale deterministico con un modello CLORPT, e introducendo nel fattore rilievo i processi geomorfologici è stato lo scopo della ricerca. 1.532 profili di suoli (1.363 analizzati) sono stati raccolti da bibliografi a e da rilevamenti precedenti. Una carta fisiografica della Sicilia è stata realizzata per fotointerpretazione e consultando 54 lavori pubblicati di geomorfologia. Altre informazioni geografi che sono state raccolte: una carta geologica della Sicilia, la carta dell’uso del suolo Corine 2000 e la precedente versione della carta dei suoli della Sicilia. La banca da…
Gypsum and Halite Deposition on Cyanobacteria and Algae in Salt‐Affected Soils.
2014
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…
Citrus
2009
Soil erosion risk, Sicilian Region (1:250,000)
2014
Assessing the risk of soil erosion caused by water at the regional level is important for current and future planning of land use and environmental actions to combat land degradation. The gravity of the risk depends not only on the rate of soil erosion by water, but also on other factors, primarily soil depth and workability of the underlying rocks and sediments, which may be used to calculate the eroded soil. We estimate the rate of erosion by water (tons ha-1 year-1) applying the Universal Soil Loss Equation model. The map of soil content (tons ha21) to the effective rooting depth was divided by the map of soil erosion rate to obtain the risk of erosion by water in Sicily, expressed in te…
Organic matter and microbial community in anthropogenic soils of arid environment.
2011
Soil and pedomesofauna relationships under different forests on a western slope of Etna Volcano
2015
Although the pedofauna influences the processes of pedogenesis and has an important role in the main functional properties of the soil, it has rarely been used as a key-element in defining soil quality. As has been stressed, this is due to the fact that the utility of pedofauna as a soil quality indicator is a function of the definition of soil quality which, in turn, depends on different functions, both biotic and abiotic, performed by the soil. If we consider the biological functions of vegetal, animal and microbiotic activity, the usefulness of the pedofauna, as a diagnostic element of soil quality, reaches its maximum since it is one of the indicators of the biodiversity. Previous work …
Anthropogenic Soils and Soil Security: environmetal and economic consideration.
2017
Since ancient times Man and Soil have experienced interwoven links. Nowadays soil scientists continue to stress such links highlighting the importance of soil to provide man’s growing demand for food, water and energy, and also the soil’s importance in providing ecosystem services that affect climate change, human health and biodiversity. In soil management for agricultural purposes, pedotechniques to tailor soils suitable for table grapes cultivation in large-scale farming are used to get substantial financial returns. However farmers, in tailoring soils for high income crops, frequently do not take into account the fundamental objective of the pedotechnique, i. e. to meet the needs of man…