An educational computer tool for simulating long-term soil erosion on agricultural landscapes

2009 ◽  
Vol 17 (3) ◽  
pp. 253-262 ◽  
Author(s):  
F. J. Jiménez-Hornero ◽  
J. V. Giráldez ◽  
A. M. Laguna ◽  
J. E. Jiménez-Hornero
Keyword(s):  
Soil Erosion ◽  
Agricultural Landscapes ◽  
Computer Tool ◽  
Educational Computer

scholarly journals Soil erosion by snow gliding – a first quantification attempt in a subalpine area in Switzerland

2014 ◽  
Vol 18 (9) ◽  
pp. 3763-3775 ◽  
Author(s):  
K. Meusburger ◽  
G. Leitinger ◽  
L. Mabit ◽  
M. H. Mueller ◽  
A. Walter ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Land Cover ◽  
Sediment Yield ◽  
Soil Loss ◽  
Water Erosion ◽  
Erosion Rates ◽  
The Difference ◽  
Snow Gliding

Abstract. Snow processes might be one important driver of soil erosion in Alpine grasslands and thus the unknown variable when erosion modelling is attempted. The aim of this study is to assess the importance of snow gliding as a soil erosion agent for four different land use/land cover types in a subalpine area in Switzerland. We used three different approaches to estimate soil erosion rates: sediment yield measurements in snow glide depositions, the fallout radionuclide 137Cs and modelling with the Revised Universal Soil Loss Equation (RUSLE). RUSLE permits the evaluation of soil loss by water erosion, the 137Cs method integrates soil loss due to all erosion agents involved, and the measurement of snow glide deposition sediment yield can be directly related to snow-glide-induced erosion. Further, cumulative snow glide distance was measured for the sites in the winter of 2009/2010 and modelled for the surrounding area and long-term average winter precipitation (1959–2010) with the spatial snow glide model (SSGM). Measured snow glide distance confirmed the presence of snow gliding and ranged from 2 to 189 cm, with lower values on the north-facing slopes. We observed a reduction of snow glide distance with increasing surface roughness of the vegetation, which is an important information with respect to conservation planning and expected and ongoing land use changes in the Alps. Snow glide erosion estimated from the snow glide depositions was highly variable with values ranging from 0.03 to 22.9 t ha−1 yr−1 in the winter of 2012/2013. For sites affected by snow glide deposition, a mean erosion rate of 8.4 t ha−1 yr−1 was found. The difference in long-term erosion rates determined with RUSLE and 137Cs confirms the constant influence of snow-glide-induced erosion, since a large difference (lower proportion of water erosion compared to total net erosion) was observed for sites with high snow glide rates and vice versa. Moreover, the difference between RUSLE and 137Cs erosion rates was related to the measured snow glide distance (R2 = 0.64; p < 0.005) and to the snow deposition sediment yields (R2 = 0.39; p = 0.13). The SSGM reproduced the relative difference of the measured snow glide values under different land uses and land cover types. The resulting map highlighted the relevance of snow gliding for large parts of the investigated area. Based on these results, we conclude that snow gliding appears to be a crucial and non-negligible process impacting soil erosion patterns and magnitude in subalpine areas with similar topographic and climatic conditions.

SHORT COMMUNICATION: Difficulties in using 137Cs to measure erosion in stubble-mulched soil

1995 ◽  
Vol 75 (3) ◽  
pp. 357-359 ◽  
Author(s):  
E. Bremer ◽  
H. H. Janzen ◽  
E. de Jong
Keyword(s):  
Soil Erosion ◽  
Key Words ◽  
Short Communication ◽  
Crop Rotations ◽  
Present Evidence ◽  
Southern Alberta ◽  
Communication Difficulties ◽  
Cesium 137

Soil erosion may be difficult to quantify from redistribution of 137Cs at sites where stubble-mulch techniques were adopted prior to 137Cs deposition, because appreciable 137Cs may have been transported before it was mixed into the soil Ap layer. We present evidence that this occurred in two long-term cropping experiments in southern Alberta. Key words: Cesium-137, tillage, long-term crop rotations, fallow

scholarly journals Assessment of land cover on soil erosion in Lam Phra Phloeng watershed by USLE model

2018 ◽  
Vol 192 ◽  
pp. 02017 ◽  
Author(s):  
Jatuwat Wattanasetpong ◽  
Uma Seeboonruang ◽  
Uba Sirikaew ◽  
Walter Chen
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Land Cover ◽  
Soil Loss ◽  
Land Development ◽  
Developed Countries ◽  
Surface Erosion ◽  
Agricultural Field ◽  
Land Cover Data

Soil loss due to surface erosion has been a global problem not just for developing countries but also for developed countries. One of the factors that have greatest impact on soil erosion is land cover. The purpose of this study is to estimate the long-term average annual soil erosion in the Lam Phra Phloeng watershed, Nakhon Ratchasima, Thailand with different source of land cover by using the Universal Soil Loss Equation (USLE) and GIS (30 m grid cells) to calculate the six erosion factors (R, K, L, S, C, and P) of USLE. Land use data are from Land Development Department (LDD) and ESA Climate Change Initiative (ESA/CCI) in 2015. The result of this study show that mean soil erosion by using land cover from ESA/CCI is less than LDD (29.16 and 64.29 ton/ha/year respectively) because soil erosion mostly occurred in the agricultural field and LDD is a local department that survey land use in Thailand thus land cover data from this department have more details than ESA/CCI.

scholarly journals Assessment of Implicit Interests through an Unobtrusive Computer Task. Their Relations with Career Decision, Anxiety, and Personality Traits

2021 ◽  
Vol 18 (23) ◽  
pp. 12366
Author(s):  
Antoni Castelló ◽  
Ramon Cladellas
Keyword(s):  
Personality Traits ◽  
Compulsory Education ◽  
Career Decision ◽  
Computer Tool ◽  
Efficient Tool ◽  
Short And Long Term ◽  
Career Preferences ◽  
Important Shift

Adolescence is a period where youngsters still do not know much about themselves. That makes some decisions, like those concerning vocational elections, a complicated issue that has important consequences for their life. The main goal of this piece of research is to measure implicit interests using a situated, unobtrusive computer tool (PrUnAs: Preferences Unobtrusive Assessment) as well as its connection with anxiety and personality traits: neuroticism, extraversion, self-efficacy, optimism, consciousness, and openness. Sample: 304 16-year-old adolescents enrolled in the last course of compulsory education. Instruments: Computer programs were used to measure implicit interests, career preferences, and to self-descript personality traits; finally, the paper-and-pencil test Stai was applied to measure anxiety. Results: Concordance between implicit interests and explicit choices was less than 50%. The software developed for assessing implicit interests not only proved to be an efficient tool to make them arise but also a good predictor of anxiety. Conclusions: Implicit interests and explicit elections are not the same. The approach from implicit preferences is an important shift in the approximation to vocational guiding and to reduce youngsters’ indecision level. Beyond vocational choice, this information may improve the short- and long-term quality of life and mental health.

scholarly journals Long-term Monitoring of the Vegetation Cover of Mountain Territories in the GIS for Soil and Landscape Study of Territories

2021 ◽  
Vol 7 (3) ◽  
pp. 33-41
Author(s):  
G. Djalilova ◽  
F. Mamatkulova ◽  
Z. Mamatkulova
Keyword(s):  
Soil Erosion ◽  
Arable Land ◽  
Stable State ◽  
Soil Protection ◽  
Natural Conditions ◽  
The World ◽  
Common Process ◽  
Long Term Monitoring ◽  
Term Monitoring

Rational use of natural resources and preservation of environment in good conditions are the basis of stable state of the ecosystem. Mountain soil erosion is the most common process of degradation. Soil protection from erosion is becoming a global problem in the world, and in Uzbekistan, in particular. Natural conditions of the region create a potential danger of soil erosion. The reason for its manifestation is the misuse of land, non-compliance with necessary requirements for soil protection. In most cases, it is due to the location of homesteads and crops on erosion-prone soils that poorly protect soil from erosion, improper cultivation of soils on arable land, unregulated grazing of pastures, and damage to soil protective plantations.

scholarly journals Holocene Critical Zone dynamics in an Alpine catchment inferred from a speleothem multiproxy record: disentangling climate and human influences

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Eleonora Regattieri ◽  
Giovanni Zanchetta ◽  
Ilaria Isola ◽  
Elena Zanella ◽  
Russell N. Drysdale ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Iron Age ◽  
Isotope Composition ◽  
Precipitation Amount ◽  
Critical Zone ◽  
Stable Isotope Ratio ◽  
Climate Forcing ◽  
Soil Response ◽  
Anthropic Pressure

AbstractDisentangling the effects of climate and human impact on the long-term evolution of the Earth Critical Zone is crucial to understand the array of its potential responses to the ongoing Global Change. This task requires natural archives from which local information about soil and vegetation can be linked directly to climate parameters. Here we present a high-resolution, well-dated, speleothem multiproxy record from the SW Italian Alps, spanning the last ~10,000 years of the present interglacial (Holocene). We correlate magnetic properties and the carbon stable isotope ratio to soil stability and pedogenesis, whereas the oxygen isotope composition is interpreted as primarily related to precipitation amount, modulated at different timescales by changes in precipitation source and seasonality. During the 9.7-2.8 ka period, when anthropic pressure over the catchment was scarce, intervals of enhanced soil erosion are related to climate-driven vegetation contractions and occurred during drier periods. Immediately following the onset of the Iron Age (ca. 2.8 ka), by contrast, periods of enhanced soil erosion coincided with a wetter climate. We propose that the observed changes in the soil response to climate forcing were related to early anthropogenic manipulations of Earth’s surface, which made the ECZ more sensitive to climate oscillations.

scholarly journals Experiences from a National Landscape Monitoring Programme—Maintaining Continuity Whilst Meeting Changing Demands and Opportunities

Land ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 77
Author(s):  
Grete Stokstad ◽  
Wendy Fjellstad
Keyword(s):  
Agricultural Landscapes ◽  
Rate Of Change ◽  
Data Availability ◽  
Monitoring Programme ◽  
Policy Makers ◽  
Political Interests ◽  
Landscape Monitoring ◽  
Cost Efficient ◽  
Over Time

Over the past few decades, there has been increasing interest in recording landscape change. Monitoring programmes have been established to measure the scope, direction and rate of change, and assess the consequences of changes for multiple interests, such as biodiversity, cultural heritage and recreation. The results can provide feedback for multiple sectors and policy domains. Political interests may change over time, but long-term monitoring demands long-term funding. This requires that monitoring programmes remain relevant and cost-efficient. In this paper, we document experiences from 20 years of the Norwegian Monitoring Programme for Agricultural Landscapes—the ‘3Q Programme’. We explain how data availability and demands for information have changed over time, and how the monitoring programme has been adapted to remain relevant. We also discuss how methods of presentation influence the degree of knowledge transfer to stakeholders, in particular to policy makers.

The Study on the Vegetation Factor C of the USLE Model in the Frigid Plateau Region Based on Remote Sensing

2012 ◽  
Vol 500 ◽  
pp. 162-167
Author(s):  
Shi Xian Gu ◽  
Xia Xu ◽  
Xiao Dan Wang
Keyword(s):  
Remote Sensing ◽  
Soil Erosion ◽  
Soil Conservation ◽  
Rational Model ◽  
Plateau Region ◽  
Eastern Tibet ◽  
C Value ◽  
Factor C ◽  
Term Field

The vegetation factor C presented the human disturbance to the soil erosion and was important to the soil erosion estimation and soil conservation. However it was hard to be measured without a long term field observation and much harder in the frigid plateau region where the environment is fragile and tough, research needed and not easy to be conducted. This study used remote sensing to check detail land use/cover, estimated the factor C by vegetation rational model, and a factor C value table was built and C value map was drawn in the typical watershed of eastern Tibet to help to estimate the soil erosion in the material lack area.

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