A Brief Time of History

Higgitt, David

doi:10.1002/9780470712832.ch1

Cited by 5 publications

(4 citation statements)

References 46 publications

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“…Modeling processes that produce geomorphological hazards require understanding of how landscape components respond to forced conditions of land use change and to the climatic regime [6,7]. This is valuable to inform the assessment of future planning [8,9], but soil erosion monitoring systems tracking downstream sediment movement may be costly, and require focused efforts to manage land and water resources [10]. Because of this cost, modeling is playing an increasingly significant role [11].…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of Seasonal Net Erosion in a Mediterranean Landscape (Alento River Basin, Southern Italy) over the Past Five Decades

Diodato

Bellocchi

2019

Water

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In the low Mediterranean basin, late spring and autumn rainfall events have the potential to increase discharge and transport substantial amounts of sediment soil (that is, the net soil erosion from a watershed). For the Alento River Basin (ARB), located in the low Tyrrhenian coast of Italy, we estimated changes of net erosion as dependent on the seasonality of antecedent soil moisture and its control on rainfall-runoff and erosivity. Based on rainfall and runoff erosivity sub-models, we developed a simplified model to evaluate basin-wide sediment yields on a monthly basis by upscaling point rainfall input. For the period 1951–2018, the reconstruction of a time series of monthly net erosion data indicated a decreasing trend of the sediment yield after 1991. Revegetation and land abandonment that occurred in the last decades can explain such a decrease of net erosion, which occurred even when rainfall erosivity increased. This response, obtained at the basic scale, does not exclude that rapidly developing mesoscale convective systems, typically responsible for the heaviest and most destructive rainfall events in the ARB, can affect small catchments, which are the most vulnerable systems to storm-driven flash floods and soil erosion hazards during soil tilling in spring and at beginning of autumn.

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Section: Introductionmentioning

confidence: 99%

Reconstruction of Seasonal Net Erosion in a Mediterranean Landscape (Alento River Basin, Southern Italy) over the Past Five Decades

Diodato

Bellocchi

2019

Water

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“…This observation is important because, if land use change was not causal in the generation of sediment, climate changes may have been. Despite their contrasting weather patterns, the climatic excursions within both the ''medieval warm period'' (broadly c.1000 to 1400 AD) and the succeeding ''little ice age'' (c.1400 to 1850 AD) have been suggested as promoting fluvial instability in Europe (Rumsby & Macklin, 1996;Brown, 1998;Higgitt, 2001). The weight of the evidence at Dunglass suggests that aggradation occurred within the ''medieval warm period''.…”

Section: Discussionmentioning

confidence: 94%

Multidisciplinary approaches to defining historic period coastal and fluvial changes at Dunglass Burn, south east Scotland

Tipping¹

2007

RSGJ

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An exceptionally thick (42.5 m) fluvial and colluvial valley fill is described from the coastal reach of the Dunglass Burn, draining the Lammermuir Hills in south east Scotland. Buried by the valley fill is a series of charcoal accumulations interpreted as beacons to guide fishing boats, and an assemblage of large mammal bones. Radiocarbon assays on charcoal associated with these elements show them to be of early Medieval age. The onset of this extraordinary fluvial and colluvial sediment aggradation is considered to have begun at c. 1100 AD, although causation cannot be closely defined. The relations between the valley fill and securely dated built structures (buildings, bridges), an approach very infrequently explored, allow the cessation of aggradation to be dated to before the mid-16th century AD. After c. 1600 AD incision has occurred to the present. The development of this valley fill is likely to have extensively altered the configuration of the coastline in the Medieval and early modern periods. The analyses emphasise the large magnitude of very recent landscape changes.

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“…However, while the major focus on causes of soil erosional degradation has been the relative significance of agricultural activities and practices, the possible impact of changing weather patterns and more sustained shifts in climate have also been implicated (Foster, 2001). Understanding how landscape components respond to forced conditions of land use change and to the climatic regime has implications for modeling the geomorphological processes hazard (Leeder et al, 1998;Coulthard et al, 2002) and for assessment of future planning (Higgitt, 2001;Verstraeten and Poesen, 2001). In this way, modeling has been a fascination for millennia, such as mean the words of Mulligan and Wainwright (2004) and Wainwright and Mulligan (2004, p. 8):…”

Section: Introductionmentioning

confidence: 98%

Modelling net erosion responses to enviroclimatic changes recorded upon multisecular timescales

Diodato¹

2006

Geomorphology

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A Brief Time of History

Cited by 5 publications

References 46 publications

Reconstruction of Seasonal Net Erosion in a Mediterranean Landscape (Alento River Basin, Southern Italy) over the Past Five Decades

Reconstruction of Seasonal Net Erosion in a Mediterranean Landscape (Alento River Basin, Southern Italy) over the Past Five Decades

Multidisciplinary approaches to defining historic period coastal and fluvial changes at Dunglass Burn, south east Scotland

Modelling net erosion responses to enviroclimatic changes recorded upon multisecular timescales

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