Air circulation in deep fractures and the temperature field of an alpine rock slope
In this study, the AA. address the impact of air and water fracture flow on the temperature field of an alpine rock slope at 2400 m a.s.l. in southern Switzerland. They first approximate the conductive temperature field based on distributed
This study aims to quantify the extent to which such increased mineralization occurs in a real field situation. Carbon dioxide (CO2)-efflux was measured in the field after an important erosion event for a continuous period of 112 days. The specific
situation on the field ensured that almost none of eroded SOC was exported from the field. Field data were complemented by measurements on incubated, undisturbed soil core samples, in order to disentangle the contribution of environmental factors (moisture
, temperature) from any erosional effect on CO2-efflux. Results of these measurements on the field showed that CO2-efflux was regulated by a complex interplay of different factors (mostly soil porosity, soil moisture and soil temperature). In combination
Spatiotemporal budgeting of soil erosion in the abandoned fields area of the “Rahnstätter Hof” near Michelbach (Taunus Mts., Western Germany)
This interdisciplinary study comprises archaeological findings as well as historical records. The “Rahnstätter Hof” manor of 82 ha of fields, meadows and forests was abandoned in 1870. The total amount of soil erosion on the former farmland has been
to intensified agriculture by the improved three-field crop rotation system and the overexploitation of forest lands in the pre-industrial era. A gully system studied was found to have developed since Early Medieval times. Soil erosion was found not to have
calculated, 65% of it as sheet erosion, the remaining 27% as gully erosion, leading to the deposition of colluvium on and behind field balks and of colluvial filling in small valleys. Soil erosion mainly took place during the Early Modern Era, in response
The value of single-site ethnography in the global era : studying transnational experiences in the migrant house
The aim of the paper is to show the value of doing single-site ethnography in the field of transmigration studies. It concentrates on migrants' personal experiences of living in-between two countries. The A. shows how both the relationality
and emotionality of transnational experiences can be studied in one place : the migrant house.
and an event which stimulates in-depth studies, discussions and assessment of investigations and theories in the field of Geomorphology. - (NF)
The Dolomites make up an important geo-heritage that can be considered as a high-altitude field laboratory for research and development of geomorphological theories and understanding. The A. stresses that on June 26th 2009 the Dolomites were
Comparative study ; Digital elevation model ; Geographical information system ; Geomorphological mapping ; Geomorphology ; Slovenia
In this study the results of field-based geomorphological mapping and results obtained with the use of geoinformatic tools were compared. In the field, the relief forms were determined with the use of geomorphological mapping, whereas two
geoinformation tools were used in computer analysis: the method of comparison of smoothed digital elevation model with the original and the method of Surface Specific Points. The analysis was conducted on a 3.16 km2 large study area in SE Slovenia. - (IKR)
Field observations of infragravity waves and their behaviour on rock shore platforms
Infragravity wave (IGW) transformation was quantified from field measurements on 2 shore platforms on New Zealand's east coast (Oraka and Rothesay Bay). The observed increase in IGW height over the platform during both experiments is attributed
in water level at the cliff toe during high tide. Results from this study show the first measurements of IGWs on shore platforms and identify long wave motion a significant process in a morphodynamic understanding of rock coast.
A fieldstudy of mean and turbulent flow characteristics upwind, over and downwind of barchan dunes
by rotation to flow streamlines; to consider the implications of these flow data for the geomorphological development of barchan dunes; to compare the results from this study with previous investigations in the field, in wind tunnels and in software models.
Modelling a cohesive-frictional debris flow: an experimental, theoretical, and field-based study
Boulder ; Comparative study ; Debris flow ; Experimentation ; Glacial surge ; Model ; Natural hazards ; Norway ; Numerical model ; Rheology
. As application to a field case, the AA. analyse a recent debris flow that occurred in Fjærland (Western Norway), caused by a glacial lake outburst flood (GLOF) originating from the failure of a moraine ridge. In contrast to the laboratory debris flows
performed at a 1:25,000 scale, which result from the first systematic reconnaissance of the area. This work represents the results of several years of exploration studies and is mainly based based on original stratigraphic and structural field analyses
focused on one of the less known orogenic belts of Central Asia. Original field surveys have been integrated within a GIS using georeferenced Russian topographic maps and grey-tone panchromatic SPOT images. The study area is located along the border
A new geological map the central-western part of the Karakoram belt (Northern Areas and North West Frontier Province, Pakistan) is presented with its explanatory notes. The map is printed at a 1:100,000 scale, summarizing original field surveys
Differences of synoptic fields depending on the location of MCS genesis in southwest China
This study aimed first to clarify the distribution and diurnal variability of Mesoscale Convective System (MCS) occurences and their relations to the in-situ records of heavy rain events in the SW area including complex topography
Cultural landscape evaluation and possibilities for future development - a case study of the island of Krk (Croatia)
The main purpose is to show the method of agricultural landscape evaluation and possibilities for future development as well as the protection of outstanding agricultural landscapes, based on a case study in island of Krk, Croatia. Possible
structural changes of those landscapes are considered and a proposal for the strategy of the preservation of valuable landscape heritage on Krk is formulated. For field landscapes the preservation is possible through the modernization of agricultural
This study was conducted on traditional cultivated fields in Niger, i.e. in conditions representative of the quantities and distribution of crop residues that are actually observed in the studied zone. The aim of this study is to quantify the amount
of crop residues in traditional Sahelian fields and to determine its impact on wind erosion throughout the seasonal cycle, by monitoring the erosion flux and crop residues amount over several years.
Negligible soil erosion in a burned mountain watershed, Canadian Rockies : field and modelling investigations considering the role of duff
The field site was located in a closed canopy, subalpine forest in Kootenay National Park, British Columbia that was subjected to a high-intensity crown fire in the summer of 2003. Low soil erosion values were documented at the study site
Gross erosion, net erosion and gross deposition of dust by wind: field data from 17 desert surfaces
and silts, mixtures of sand, silt and clay, exposed petrocalcic horizons, gravelly substrata and bedrock. Results showed that net erosion, which is the type of erosion measured in field and laboratory experiments, strongly differs from gross erosion
. The study suggests that interactions exist between the type of surface and the susceptibility of particles to wind erosion.
Impacts of 22-year organic and inorganic N managements on soil organic C fractions in a maize field, northeast China
The fertilizer experimental site used in this study was established on a maize field in Shenyang Agriculture University in 1987. The treatments included, CK : unfertlized control, M : organic manure, N : inorganic N fertilizer and MN : combination
Aeolian dust ; Arid area ; China ; Comparative study ; Grain size distribution ; Inner Mongolia ; Nutrient ; Organic materials ; Plant cover ; Semi-arid area ; Soil erosion ; Steppe ; Vegetation ; Wind erosion
The AA. conducted a field experiment to investigate the effects of vegetation coverage on airborne dust accumulation and evaluated effects of dust input on the contribution of nutrients to vegetation-mulched fields. Five vegetation coverage
2011
[b1] Hulunber State Station of Grassland Ecosystem Field Observation and Scientific Research, Dep. of Grassland Sciences, Key Lab. of Resources Remote Sensing and Digital Agriculture, Ministry of Agriculture, Chine
This study was conducted in a corn field of a research farm in Franklin County, central Ohio. Some sites within the field have experienced water-induced soil erosion following heavy rainstorms. Physical characteristics of the soil were compared
, total nitrogen, clay, silt, and very fine sand. The erodibility factor (K) was lower in UN than in ER. Hence, it is suggested the ER sites within the corn field agroecosystem are more susceptible to accelerated erosion as compared with UN sites.