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ATTI del Terzo Congresso Nazionale di Selvicoltura per il miglioramento e la conservazione dei
boschi italiani |
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doi: 10.4129/CNS2008.064
Citazione
- Citation
Autori - Authors PAGLIAI
M. - Centro
di ricerca per l’agrobiologia e la pedologia, CRA, Firenze
Titolo: Qualità
del suolo per una selvicoltura sostenibile Title:
Parole chiave: funzioni del suolo, porosità del suolo, ritenzione idrica, compattamento, erosione. Key words: soil functions, soil porosity, soil water retention, soil compaction, soil erosion.
Riassunto
Summary Soil
quality is the capacity of a specific kind of soil to
perform a desiderated
function. Soils
have at least six different functions for the social and economic
development of humankind, which can be distinguished into three more
ecological functions (production
of biomass; filtering, buffering and transforming; gene reserve and
protection of flora and fauna) and three others directly linked to
human activities defined as technical, industrial and socio-economic
functions (support to human
settlement, housing and infra-structure, recreation and waste disposal;
source of row materials, including water; protection and preservation of
cultural heritage). The need for assessing soil quality has
expanded because of growing interest in developing management practices
that allow plant productivity and, overall, the protection of soil
resource. The
soil quality is mainly determined by the physical, chemical and biological
properties, that are strongly interconnected. Many of their parameters
represent the indicators that allow to quantify soil quality. According
to the conditions of silviculture in The
main causes of the soil degradation processes are represented by soil
compaction (mainly due to traffic by machines, but also due to the
trampling of animals), soil erosion (that strongly increases in areas
interested by fire) and by drought periods.
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