196,626 research outputs found
Correction to: Human behavior and Homo-mammal interactions at the first European peopling: new evidence from the Pirro Nord site (Apricena, Southern Italy) (The Science of Nature, (2019), 106, 5-6, (16), 10.1007/s00114-019-1610-4)
No full textIn the original publication of this article, one of the author names was incorrectly captured. The first name should be Razika, then family name should be Chelli–Cheheb
Geomorphological mapping, a basic tool for interpreting rock coasts landforms: an example from Eastern Liguria (Italy)
No full textThis work deals with the geomorphological setting, with particular regard of rock coast morphologies along the coastline, of Palmaria Island, in the easternmost pan of the Ligurian coast. We carried out a detailed geomorphologic survey on the island, focused on coastal landforms. The rock seaward slope of Palmaria Island has two types of long profiles: 1) a slope over wall profile (plunging cliff) and 2) narrow rock surfaces at sea level or a few meters above it backed by steep slopes (palaeocliff). The first type of slope profile is due to the presence of faults, linked to NW-SE-striking fault system, responsible for the displacement of the eastern Ligurian continental shelf. Our data indicate the up-throw side of the fault, corresponding to the island coast, is stable, so that an incipient notch can evolve along the cliff face in connection with present day sea level. The second type of slope profile shows at its bottom a narrow, discontinuous rock platform which is currently being demanded, constrained in elevation below 5 m asl. This surface is interpreted as inherited from a past interglacial phase, thanks also to the OSL dating of a scree slope deposits that overlaps it
RECONSTRUCTING THE SURFACE MOVEMENTS OF THE CAROBBIO LANDSLIDE AT TWO SITES ALONG THE PARMA TORRENT AT THE MULTI-DECADAL SCALE
No full textPurpose: Slope failure along the Parma Torrent are recurrent landslides that result from the interaction of river dynamics, mainly
removing material from the slope toes, and gravitational slope processes. To better understand the events occurring along the torrent and
their frequencies through time, a time perspective is mandatory, and multi-decadal reconstruction of landslide surface movements can
be performed on forested slopes, by means of tree-ring techniques.
Methods: The integrated use of dendrogeomorphological and GIS techniques has led to successful reconstructions of landslide surface
movements at the multi-decadal scale in the Italian Alps (Gattinoni et al., 2019; Leonelli et al., 2020). The same approach based on the
analysis of the tree-ring eccentricity, was applied also at the Carobbio landslide, a complex (roto-translational) slide involving marlylimestone flysch formation, at two sites along the Parma Torrent, right river bank. At one site a landslide event occurred, likely in 2010-
2011, causing the displacement of 17-20 m of an area of approximately 36’000 m2; a second site was selected south of to the first one, on
a slope not yet interested by landslide events in the recent years.
Results: At the northern site, we could date slope movements up to the 1960s, however major signals where recorded since 1971 and 1972
in the higher portion of the slope (with eccentricity values at approximately 20%), whereas in the lower portion of the slope the major
signal were recorded only since 1997 (with eccentricity values between 20 and 25%). At the southern site although no events occurred in
the recent past, most of trees present decreasing eccentricity values (up to 20% in recent decades) indicating an ongoing recovery since
higher disturbances recorded in the 1970s. Here, however, a group of trees shows an increasing trend of eccentricity, with values as high
as 30% already in the 1970s and up to 40-50% in recent decades.
Conclusions: The integrated use of dendrogeomorphological techniques on forested slopes along the Parma Torrent together with
GIS techniques has allowed the reconstruction of landslide surface movements at the multi-decadal scale at two sites. As we found,
disturbance signals have been recorded by trees on the slope already since 40 years (upper portion) and 15 years (lower portion) before
the major event observed at the northern site. The slope at the southern site is mostly in equilibrium conditions, although it presents an
area in the SE portion that is recording strong signals of surface movements, indicating an ongoing gravitational stress.
References
1. Gattinoni, P., Consonni, M., Francani, V., Leonelli, G., Lorenzo, C., 2019. Tunnelling in landslide areas connected to deep seated gravitational deformations:
An example in Central Alps (northern Italy). Tunnelling and Underground Space Technology 93, 103100. https://doi.org/10.1016/j.tust.2019.103100
2. Leonelli, G., Chelli, A., Consonni, M., Lorenzo, C., Gattinoni, P., 2020. Multi-decadal dating of surface slope movements in forested DSGSD areas of the
European Alps: detecting precipitation triggering factors. Geografiska Annaler: Series A, Physical Geography 1–25. https://doi.org/10.1080/04353676.20
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Capitolo 3 Propriano-Baie de Valinco (3.4.1. Stato dell’ambiente terrestre)
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The Index of Sustainable Economic Welfare: A Comparison of Two Italian Regions
No full textThe Index of Sustainable Economic Welfare (ISEW) proposed by Daly and Cobb in 1989 provides a more down-to-earth
representation of the well-being of a society than GDP does, since its definition involves also variables that are not included in the conventional national accounts (such as social and environmental issues). Recently there has been an increasing interest in calculating this index also at local levels. Following this strand of literature, aim of this paper is to provide a comparison between ISEW and GDP trends for two central Italian regions, Tuscany and Marche, over the years 1999-2009. In particular, we
try to explain how differences in the level of GDP are reflected in differences in ISEW levels between these regions. Finally, we discuss and propose further adjustments in calculation of the ISEW
Towards the establishment of the Italian network of old-growth forests: the understorey plant diversity perspective
Get PDFThe publication of the Decree that has established the Italian network of old-growth forests opens new opportunities for nature conservation and new challenges for scientists. A fundamental criterion for the identification of old-growth forests is related to a “characteristic biodiversity” due to the absence of disturbances for at least sixty years. In this contribution we mainly discuss shortcomings, potential interpretation and perspectives related to the application of this criterion for the vascular plants living in the understorey. We show that the understorey diversity (both taxonomic and functional) patterns with forest maturity are strongly context-dependent and stand structural features are fundamental drivers. As a consequence, considering the impressive heterogeneity of Italian forests, the strict threshold included in the Decree (sixty years since the last disturbance) can hardly be used to distinguish a “characteristic biodiversity”. Finally, we invite all the Italian scientists dealing with forest ecosystems to strongly collaborate in order to accept the challenge introduced by the Decree
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