Search results for "pedologia"

Enzymatic activity of anthropogenic proto-organic soils in soilless farming

2017

In soilless agriculture and horticulture coir is the more used substratum to grow plants because it is widely available and more environmentally friendly than sphagnum or peat. In Italy, soilless agriculture concerns an area of about 1,000 hectares, particularly concentrated in Sicily. The southern coastal belt of this region is the area interested by the most significant experiences in the application of techniques of soilless cultivation that, recently, has been used also for growing table grapes. Starting from the above consideration we suppose that the features of the coconut fiber underlay an evident transformation and that even after few years of table grape cultivation, such organic …

VARIABILITÀ SPAZIALE DELLA CONDUCIBILITÀ ELETTRICA SU SUOLI FORESTALI EVOLVENTI SULLA SERIE GESSOSO-SOLFIFERA

2004

In Sicilia, una superficie di circa 250.000 ettari, è interessata da suoli affetti da salinità. In laboratorio, la salinità del suolo può essere stimata, indirettamente, determinando la conducibilità elettrica (CE) dell’estratto di sospensioni suolo/acqua, mentre per la sua stima diretta in campo si sta diffondendo l’uso dei sensori ad induzione elettromagnetica. Scopo del lavoro è stata la valutazione della variabilità spaziale della conducibilità elettrica di suoli affetti da salinità, con un sensore elettromagnetico. L’area di studio ricade nella Sicilia centrale, nel “Complesso Boscato Mustigarufi” i cui suoli presentano un diverso contenuto di sali. Le misure, effettuate in 329 punti s…

Interrelazioni quali-quantitative tra descrittori fisici, chimici e biochimici di un pedon, prima e dopo il disturbo antropico

2005

La descrizione dei suoli può iniziare col telerilevamento; proseguire con il riconoscimento dell'elemento territoriale e continuare con la determinazione delle caratteristiche chimico-fisiche del terreno, che sono un insieme di analisi, definite di base, necessarie e (supposte) sufficienti ad identificare le caratteristiche fondamentali del suolo. Con le attuali tecniche analitiche sono oggi disponibili descrittori più fini quali contenuto di metalli in traccia e caratteristiche biochimiche. Nel nostro caso-studio, la sensibilità di risposta al disturbo antropico ordina le classi di descrittori nel senso terre rare < metalli < indicatori chimici < indicatori biochimici. I descrittori pedolo…

Source of calcium for pedogenic CaCO3 formation in benchmark soils of a Mediterranean semiarid environment

2004

Calcic and petrocalcic horizons (Bk and Bkm, respectively) commonly occur in soils of arid and semiarid regions. Studies carried out to investigate the source of calcium in CaCO3 formation have shown that dust and parent materials represent the main sources. The aim of this study was to investigate if gypsum may be a source of calcium for calcium carbonate formation and, eventually, to quantify it. Five soil pedons, developing on “Serie Gessoso- Solfifera”, were selected in a very representative forest Mediterranean ecosystem in Sicily (I). Pedons were opened, described in field and sampled according to the sequence of genetic horizons. Soil samples were analyzed to investigate 87/86Sr rati…

Variabilità quali-quantitativa dello scheletro in due toposequenze di gypsisuoli

2004

Le procedure standard di analisi fisica dei suoli prevedono la setacciatura del suolo, con rimozione dello scheletro, la frazione di diametro maggiore di due millimetri. Diversi studi hanno però confermato che lo scheletro, oltre ad influenzare le proprietà chimico-fisiche-idrologiche dei suoli, rappresenta in alcuni casi una preziosa fonte di terra fine, di carbonio organico, di azoto, e possiede una sua capacità di scambio cationico. Inoltre, ai fini tassonomici rappresenta una caratteristica diagnostica per l’individuazione di discontinuità litologiche. Scopo del lavoro è stato quello di determinare quanti-qualitativamente e classificare lo scheletro di suoli con salinità secondaria da g…

Recycling Phosphorus from Agricultural Streams: Grey and Green Solutions

2022

Many intensively farmed soils show high phosphorus (P) contents compared to the thresholds required for agricultural production; 0.084 Mt of P year−1 is leaving the European terrestrial system. This paper focuses mainly on non-point flows of P and provides an overview of the most promising and sustainable solutions for P recycling, centred on waste materials from agriculture. Given the global shortage of the primary resource of P, its management is critical for its efficient use. Nowadays, wastage and loss at every stage of the P cycle raise concerns about future supplies and especially about the resulting environmental problems, such as the eutrophication of surface water bodies and the re…

La rete di monitoraggio dei suoli ai fini ambientali della Sicilia

2011

Irish Soil Information System – application of novel and traditional techniques in soil survey

2011

The overall objective of this project is to conduct a programme of structured research into the distribution of soil types over the whole of Ireland and construct a soil map, at 1:250,000 scale, which will identify and describe the soils according to a harmonised national legend. This map will be in digital form and will form the basis for development of a new soil information system for Ireland. This is in response to national requirements to address the need to provide soil with a level of protection similar to that for water and air and, at international level, the recently adopted official ‘Communication on a Thematic Strategy for Soil Protection in Europe’ (European Commission, 2002, 20…

Towards 2014: Planned ISIS Outputs

2011

The development focus of the design and implementation of the Soil Information System (SIS) is on the structured holding and maintenance of data arising from all other project activities, in addition to significant other legacy datasets. The SIS further represents the core source from which users and stakeholders will draw upon for their future use of the results of the overall project activities. The design and implementation must therefore not only be ‘fit for purpose’ for the immediate project requirements, be able to facilitate interoperability of the datasets, and must also be consistent with the principles of Directive 2007/2/EC, Infrastructure for Spatial Information in the European Co…

SOILPRO: a LIFE+ project implementing soil monitoring and protection together with regional stakeholders of Sicily and Peloponnese.

2011

According to the Thematic Strategy for Soil Protection, the LIFE+ ENV/IT/00428 SOILPRO project (http://www.soilpro.eu) has the overall objective of slowing down the progress of soil degradation in EU Member States, and supporting local and regional authorities (LRAs) in the identification and monitoring of risk areas. The monitoring of the on-going soil degradation processes and the evaluation of different protection measures are realized through a web-based application (SMS – Soil Monitoring System), developed according to data and knowledge obtained from the different project partners. The SMS was initially applied on the whole Sicily (Italy) and Peloponnese (Greece) regions and then test…