scholarly journals Arable soil formation and erosion: a hillslope-based cosmogenic-nuclide study in the United Kingdom

2019 ◽  
Author(s):  
Daniel L. Evans ◽  
John N. Quinton ◽  
Andrew M. Tye ◽  
Ángel Rodés ◽  
Jessica A. C. Davies ◽  
...  
Keyword(s):  
Soil Formation ◽  
Parent Material ◽  
Arable Soils ◽  
Case Scenario ◽  
Worst Case ◽  
Petrographic Composition ◽  
The United Kingdom ◽  
Management Regime ◽  
The Uk

Abstract. Arable soils are critical resources that support multiple ecosystem services. They are frequently threatened, however, by accelerated erosion. Subsequently, policy to ensure their long-term security is an urgent societal priority. Although long-term security relies upon a balance between the rates of soil loss and formation, there have been few investigations of the formation rates of soils supporting arable agriculture. This paper addresses this knowledge gap by presenting the first isotopically-constrained soil formation rates for an arable (Nottinghamshire, UK) and coniferous woodland hillslope (Shropshire, UK). Rates ranged from 0.023 mm year−1 to 0.064 mm year−1 across the two sites. These rates fall within the range of previously published rates for soils in temperate climates and on sandstone lithologies but significantly differed to those measured in the only other UK-based study. We suggest this is due to the parent material at our sites being more susceptible to weathering. Furthermore, soil formation rates were found to be greatest for aeolian-derived sandstone when compared with fluvially-derived lithology raising questions about the extent to which the petrographic composition of the parent material governs rates of soil formation. On the hillslope currently supporting arable agriculture, we utilised cosmogenically-derived rates of soil formation and erosion in a first-order lifespan model and found, in a worst-case scenario, that the backslope A horizon could be eroded in 137 years with bedrock exposure occurring in 209 years under the current management regime. These findings represent the first quantitative estimate of cultivated soil lifespans in the UK.

scholarly journals Arable soil formation and erosion: a hillslope-based cosmogenic nuclide study in the United Kingdom

SOIL ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 253-263 ◽  
Author(s):  
Daniel L. Evans ◽  
John N. Quinton ◽  
Andrew M. Tye ◽  
Ángel Rodés ◽  
Jessica A. C. Davies ◽  
...  
Keyword(s):  
Soil Formation ◽  
Parent Material ◽  
Arable Soils ◽  
Case Scenario ◽  
Worst Case ◽  
Petrographic Composition ◽  
The United Kingdom ◽  
Management Regime ◽  
The Uk

Abstract. Arable soils are critical resources that support multiple ecosystem services. They are frequently threatened, however, by accelerated erosion. Subsequently, policy to ensure their long-term security is an urgent societal priority. Although their long-term security relies upon a balance between the rates of soil loss and formation, there have been few investigations of the formation rates of soils supporting arable agriculture. This paper addresses this knowledge gap by presenting the first isotopically constrained soil formation rates for an arable (Nottinghamshire, UK) and coniferous woodland hillslope (Shropshire, UK). Rates ranged from 0.026 to 0.096 mm yr−1 across the two sites. These rates fall within the range of previously published rates for soils in temperate climates and on sandstone lithologies but significantly differed from those measured in the only other UK-based study. We suggest this is due to the parent material at our sites being more susceptible to weathering. Furthermore, soil formation rates were found to be greatest for aeolian-derived sandstone when compared with fluvially derived lithology raising questions about the extent to which the petrographic composition of the parent material governs rates of soil formation. On the hillslope currently supporting arable agriculture, we utilized cosmogenically derived rates of soil formation and erosion in a first-order lifespan model and found, in a worst-case scenario, that the backslope A horizon could be eroded in 138 years with bedrock exposure occurring in 212 years under the current management regime. These findings represent the first quantitative estimate of cultivated soil lifespans in the UK.

Lithological controls on soil formation rates and the implications for soil sustainability

2020 ◽  
Author(s):  
Daniel Evans ◽  
John Quinton ◽  
Andrew Tye ◽  
Angel Rodes ◽  
Jessica Davies ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Soil Formation ◽  
Case Scenario ◽  
Worst Case ◽  
Radionuclide Analysis ◽  
Rock Types ◽  
Soil Sustainability ◽  
The Uk ◽  
The Impact ◽  
Cosmogenic Radionuclide

<p>Soils deliver multiple ecosystem services and their long-term sustainability is fundamentally determined by the rates at which they form and erode. Our knowledge and understanding of soil formation is not commensurate with that of soil erosion, but developments in cosmogenic radionuclide analysis have enabled soil scientists to more accurately constrain the rates at which soils form from bedrock. To date, all three major rock types – igneous, sedimentary and metamorphic lithologies – have been examined in such work. Soil formation rates have been measured and compared between these rock types but the impact of rock characteristics such as mineralogy or porosity on soil formation rates has seldom been explored. In this UK-based study, we addressed this knowledge gap by using cosmogenic radionuclide analysis to investigate whether the lithological variability of sandstone governs pedogenesis. Soil formation rates from two arable hillslopes underlain by different types of arenite sandstone were calculated. Rates ranged from 0.090 to 0.193 mm yr<sup>-1</sup> and although the sandstones differed in porosity, no significant differences in soil formation rates were found between them. On the contrary, these rates significantly differed from those measured at two other sandstone-based sites in the UK, and with the rates compiled in global inventory of cosmogenic studies on sandstone-based soils. We suggest that this is due to the absence of matrix and the greater porosities exhibited at our UK sites in comparison to the matrix-abundant, less porous wackes that have been studied previously. We then used soil formation rates to calculate first-order soil lifespans for both of our hillslopes. In a worst case scenario, the lifespan of the A horizon at one of our sites could be eroded in less than 40 years, with bedrock exposure occurring in less than 190 years.  This underlines the urgency required in ameliorating rates of soil erosion. However, we also demonstrate the importance of measuring soil erosion and formation in parallel, at the site of interest, rather than calculating a mean rate from the literature, as we demonstrate soil formation rates can vary significantly among variants of the same rock type.</p><p> </p>

scholarly journals Language Legislation and Policy in the uk and Ireland: Different Aspects of Territoriality in a ‘Celtic’ Context

2016 ◽  
Vol 23 (4) ◽  
pp. 454-484 ◽  
Author(s):  
Robert Dunbar
Keyword(s):  
United Kingdom ◽  
Language Policy ◽  
Indigenous Languages ◽  
Scottish Gaelic ◽  
The United Kingdom ◽  
Language Legislation ◽  
The Uk

In spite of the long-term dominance in Britain and Ireland of English, other indigenous languages continue to be spoken, and in relatively recent years several of those languages have benefited not only from a more coherent and supportive language policy but also from significant language legislation. One of the interesting features of these other indigenous languages is that, although strongly associated with rural ‘heartlands’ in the particular jurisdictions with which they are associated, they are also spoken in other parts of those jurisdictions, and, indeed, in other parts of the United Kingdom and Ireland. In this article, the ways in which the concept of territoriality has impacted upon legislation and on broader policy for two of these languages, Irish and Scottish Gaelic, will be considered.

Transmission dynamics and mechanisms of endemicity of scrapie in the UK sheep population

2008 ◽  
Vol 137 (6) ◽  
pp. 762-774 ◽  
Author(s):  
J. E. TRUSCOTT ◽  
N. M. FERGUSON
Keyword(s):  
Structural Diversity ◽  
Epidemiological Data ◽  
Transmissible Spongiform Encephalopathies ◽  
Spongiform Encephalopathies ◽  
Sheep Population ◽  
Mean Values ◽  
The United Kingdom ◽  
The Family ◽  
The Uk

SUMMARYScrapie is a fatal neurological disease of sheep which is endemic in the United Kingdom. It is one of the family of transmissible spongiform encephalopathies (TSEs) that includes BSE. In this paper, we developed a micro-simulation model for scrapie in the UK sheep population, incorporating the genetic and structural diversity of the population and infectious contact between flocks through trading. The simulation was fitted to epidemiological data from a range of sources. We found a detection/reporting probability of 16% (95% CI 12–17) for animals dying of scrapie. Prevalence of infected animals in the population was about 0·15%. Infected individuals were found in 9% of flocks overall, rising to 60% in Shetland and 75% in Swaledale flocks. Mean values of R0 for flocks varied with breed from 2·43 (Shetland) to 0·21 (Suffolk). We also examined the possible long-term persistence of scrapie in the UK flock in the absence of any intervention.

scholarly journals Content analysis for <i>Agricultural Records</i> of the United Kingdom, AD 200 to 1977: a study of frequency in human records concerning climate phenomenon

2011 ◽  
Vol 7 (4) ◽  
pp. 2555-2577
Author(s):  
D. H. Holt
Keyword(s):  
Content Analysis ◽  
Ice Age ◽  
Climate Data ◽  
The United Kingdom ◽  
Weather Phenomenon ◽  
Continuous Record ◽  
Frequency Occurrence ◽  
The Uk ◽  
Climate Events

Abstract. A content analysis has been completed on a text from the UK that has gathered agricultural and climate data from the years AD 220 to 1977 from 100s of sources. The content analysis coded all references to climate and agriculture to ascertain which climate events were recorded and which were not. This study addressed the question: is there bias in human records of climate? This evaluated the continuous record (AD 1654–1977), discontinous record (AD 220–1653), the whole record (AD 220–1977), the Little Climate Optimum (AD 850–1250) and the Little Ice Age (AD 1450–1880). This study shows that there is no significant variation in any of these periods in frequency occurrence of "good" or "bad" climate suggesting humans are not recording long-term changes in climate, but they are recording weather phenomenon as it occurs.

scholarly journals A Comparative Survey Of Capital Investment Decision Practices In The United States And The United Kingdom

2011 ◽  
Vol 1 (11) ◽  
Author(s):  
Thomas Klammer ◽  
Neil Wilner ◽  
Jan Smolarski
Keyword(s):  
United States ◽  
Risk Management ◽  
United Kingdom ◽  
The United States ◽  
Capital Expenditures ◽  
The United Kingdom ◽  
Management Techniques ◽  
Comparative Survey ◽  
The Uk

Capital expenditures can be crucial to firms long-term success, especially in a complex global environment. As companies increasingly compete in the global market place, it is important to study project evaluation processes from an international perspective. Capital investments involve substantial monetary commitments and risks that affect long-term firm profitability and influence capital allocation decisions in the future. Survey research in the area of capital expenditure analysis has been extensively done in both the United States [US] and the United Kingdom [UK]. This research is the first comparative survey of practices in both countries that we are aware of. A direct comparison of the use of project evaluation, management science, and risk management techniques in the two countries is made. The survey instrument used is an adaptation of the Klammer [1970] instrument that has been used repeatedly in surveys of American firms. This is the first time that it has been applied to British firms. The use of a common instrument allows for more meaningful comparisons. The samples consisted of 127 American and 59 British firms with sales of at least $100 million and capital expenditures of at least $10 million. Preliminary results indicate a continued extensive use of discounted cash flow techniques by US firms. Techniques such as payback or urgency continue to be used, but to a lesser degree than discounting. Firms in the UK also make extensive use of discounting but do so to a lesser degree than their American counterparts. Payback is widely used in the UK. Risk management techniques are widely used in both countries, with sensitivity analysis being the most popular technique in both countries. Extensive use of technical and administrative procedures, such as detailed budgets, standardized forms and post-audits, are evidenced in both countries. The paper offers reasons that have to do with organizational structure and form, as well as market differences, to explain our results.

scholarly journals Heterogeneous Mental Health Development During the COVID-19 Pandemic in the United Kingdom

2021 ◽  
Author(s):  
Lea Ellwardt ◽  
Patrick Praeg
Keyword(s):  
United Kingdom ◽  
Psychological Distress ◽  
Latent Class ◽  
Mitigation Measures ◽  
Social Lives ◽  
The United Kingdom ◽  
Policy Measures ◽  
Nationally Representative ◽  
The Uk

Aim. The COVID-19 pandemic and the mitigation measures by governments have upended the economic and social lives of many, leading to widespread psychological distress. However, how distress developed during the pandemic and who was most affected is poorly understood. We explore heterogeneity in trajectories of psychological distress during the first six months of the pandemic in the United Kingdom and relate this heterogeneity to socio-demographic and health factors. Subjects and Methods. We analyze six waves of longitudinal, nationally representative survey data from the UK Household Longitudinal Study (N = 15,218), covering the first lockdown in 2020. First, latent class mixture modelling (LCCM) is used to identify trajectories of psychological distress. Second, associations of the trajectories with covariates are tested with multinomial logistic regressions. Results. We find four different trajectories of distress: continuously low, continuously moderate, temporarily elevated, and continuously elevated distress. One-fifth of the population experienced severely elevated risks of distress. Long-term exposure was highest among younger people, women, those who lost income, and those with previous health conditions or COVID-19 symptoms. Conclusion. Given the threat of persistent stress on health, policy measures should be sensitized to the unintended yet far-reaching consequences of non-pharmaceutical interventions.

The Importance of Convention Status: A Case Study of the UK

2001 ◽  
Vol 6 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Alice Bloch
Keyword(s):  
Asylum Seekers ◽  
Economic Rights ◽  
The United Kingdom ◽  
The Social ◽  
The Status ◽  
The Uk ◽  
Refugees And Asylum Seekers ◽  
Social And Economic Rights

Convention status accords refugees social and economic rights and security of residence in European countries of asylum. However, the trend in Europe has been to prevent asylum seekers reaching its borders, to reduce the rights of asylum seekers in countries of asylum and to use temporary protection as a means of circumventing the responsibility of long-term resettlement. This paper will provide a case study of the United Kingdom. It will examine the social and economic rights afforded to different statuses in the areas of social security, housing, employment and family reunion. It will explore the interaction of social and economic rights and security of residence on the experiences of those seeking protection. Drawing on responses to the crisis in Kosovo and on data from a survey of 180 refugees and asylum seekers in London it will show the importance of Convention status and the rights and security the status brings.

The French sheep industry from farm to table

1990 ◽  
Vol 14 ◽  
pp. 39-43
Author(s):  
J. Barber
Keyword(s):  
Point Of View ◽  
Market Potential ◽  
High Price ◽  
Flock Size ◽  
The United Kingdom ◽  
High Street ◽  
Sheep Production ◽  
The Uk ◽  
Economic Constraints

AbstractLamb is perceived in an excellent manner in France, conjuring up the image of ‘feast day meat’, which is ‘natural’, mixed with a ‘regional flavour’. Historically lamb in France has been regarded as a meat for special occasions and has carried a high price tag. This price tag is less expensive than it used to be, especially with supermarkets and hypermarkets taking between 50 and 60% of the retail market. Lamb meat is now available to all at a (relatively) low price; a meat which is still regarded as ‘special’.Lamb consumption is increasing in France; in 1988 by an estimated 4%. This is largely due to price, good marketing and very good presentation — in the supermarkets, by top quality high-street butchers and in older traditional country markets. Consumption of lamb has increased by approximately 85 000 t in the last 15 years. French production has been decreasing by about 4% per year over recent years, and France imported 63 500 t in 1984 of which 36 000 came from the United Kingdom (UK). In 1987, 108 200 t were imported, of which 60 000 t came from the UK.There is a greater market potential for lamb in France than her producers can provide. One reason for this is that there are 190 000 producers with 8.15 million ewes; an average flock size of 42. This compares with the UK which has less than half the number of producers, with double the numbers of breeding sheep, and an average flock size nearly five times the size of French flocks.From the long-term point of view, not only is a large number of the flocks too small to be viable in competition with UK producers in the European Community but a high proportion of flock owners tend to be elderly. Sheep production is taking place in areas which are difficult to farm and on small units which are difficult to expand, either because of land law restriction or through economic constraints.

A Case Study - Life Extension of Offshore Bridge Bearings

2021 ◽  
Author(s):  
Ahmed Abdelkhalek ◽  
Govindavilas Sudhesh ◽  
Anjan Sarkar ◽  
Mohammed Eissa
Keyword(s):  
Cost Savings ◽  
Holistic Approach ◽  
Life Extension ◽  
Case Scenario ◽  
Worst Case ◽  
Maintenance And Repair ◽  
Seasonal Monitoring ◽  
The Impact ◽  
Bridge Bearings

Abstract Structural bearings of 47 offshore platform-link bridges with average age of 40 years were inspected and recommended for replacements due to their poor condition. Replacement of bridge bearings involves major risk and production interruptions given the structural modifications, and critical piping and E&I disconnections required for safe jacking-lifting activities required during the process. This paper presents the approach adopted to assure the integrity of the bridges and extend their lives without the need to replace the bearings. The approach employed failure mode and effect analysis to identifying and narrowing down areas that need focused efforts while tackling the problem. Scenario based structural assessments were carried out to examine the impact of the level of movement-allowing bearings functionality on the integrity of the bridge and its supporting structures; identify critical locations to be targeted during focused inspections; and establish envelopes for monitoring thermal expansion and contraction of the bridges. Guidelines were developed and implemented for integrated inspection-maintenance and repair campaign, which aimed to tackle corrosion issues and to install movement-monitoring indicators. Indicator seasonal monitoring is employed to establish the functionality of bearings on the long-term. The what-if structural assessments revealed that even in the worst-case scenario (in which the bearing are completely jammed) the option of local strengthening of the bridge and its supporting elements is more attractive than bearing replacement. The integrated inspection-maintenance and repair campaigns revealed that excessive corrosion levels observed from historic visual inspections on external non-critical bearing components (e.g: guide plates, angles, etc.) is not indicative of the condition of the internal load-bearing components (pedestals) which experienced much lower corrosion levels. The seasonal monitoring of bridge movements revealed that the 40+ years old Teflon pads are still functional and allow the bridges expansion and contraction. The developed holistic approach enabled demonstration of the fitness for service of the bearings, and provided means for assuring their long-term performance through monitoring. The results assured safety, integrity and delivered significant cost savings through aversion brownfield modifications, and production loss associated with bridge jacking and bearing replacement operations.

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