Construction and localization of installations reducing the sedimentary the amount of sediments washed out from small watersheds

Factors determining water erosion of slopes and standard anti erosion methods were presented. The analyze of erosion control methods applied in North America induced authors to present methods of soil intercepting in favorable sites on the slope. Methods of erosion limiting in a small watershed based on temporary and permanent barriers, sedimentation basins, ponds and small reservoirs were described. Construction of temporary barriers, basins with permeable divisions, ponds and reservoirs with tower and emergency outlet were presented. ...

The impact of agriculture on the changes of the landscape based on an example of the agricultural loess catchment in the Lublin Upland

This paper presents the results of studies showing the effect of erosion processes on the evolution of the loess catchment landscape in the conditions of intensive farming in the Lublin Upland spreading over such rural lands as Wielkopole and Zamostek. The research is based on: the inventory of erosion damage on the surface wash; the measurement of the water and suspension runoff in the discharge section line closing the catchment; the execution of studies concerning the upgrading the structure and leveling-soil profile on the slope of transverse-slope crop. The study shows a high risk of water and tillage erosion of the area in question. Being subject to intense anthropogenesis, erosion processes led to the occurrence of a specific mosaic agricultural landscape with: a dense network of dirt roads; great number of long and narrow agricultural parcels situated on the separated by high edges terraces; poor woodiness of the catchment; and the mosaic of soil types and subtypes. The natural landscape has been transformed into a cultural one and the return to its original appearance is impossible due to the still existing anthropopressure. ...

THE POSSIBILITIES OF USING GEOGRAPHICAL INFORMATION SYSTEM IN LAND CONSOLIDATION WORKS

Land consolidation is a complex process requiring the consideration of rich resources of data on the land under consolidation, preferences of participants of the consolidation regarding arrangement of newly projected parcels, performance of a number of spatial analyses, and taking decisions concerning optimal design solutions among many potential scenarios. Such a multi-aspect process requires the development of tools in the environment being able to face these criteria. Such an environment is currently constituted by Geographical Information Systems. The technological advantages of those systems in the process of transformation of rural areas are appreciated in a number of countries. This is exemplified by numerous international publications on the subject. In Poland, however, the systems are not fully exploited in the execution of particular stages of the land consolidation process. This article presents an example application of spatial analysis in the spatial management of rural areas. It assesses the risk of water erosion of a loess area in the northern part of the Harta village (Podkarpackie Voivodeship) based on basic criteria, namely water conditions, land use, and land relief, with the application of ArcGIS ESRI software. The source data (the registration database, ortophotomap, and soil-agricultural map at a scale of 1:5000) were ...

ANALYSIS OF EROSION VULNERABILITY OF AGRICULTURAL LAND IN THE CATCHMENT OF LUH STREAM USING THE GIS TOOLS

Utilization of geographic information systems (GIS) for the erosion vulnerability analysis of agricultural land is shown on the example of Luh stream catchment, Czech Republic, district of Vysočina. Evaluation of soil erosion conditions according to the Universal soil loss equation (USLE) was done in ArcGIS 10 Desktop, software product of ArcInfo using a set of integrated software applications ArcMap, ArcCatalog and ArcToolbox user interface with LS-converter and USLE2D programs. The project of erosion control measures and evaluation of their effect on the erosion were parts of the analyses. Erosion control crop rotations with soil protective technologies, that change the value of cover-management factor, were used as erosion control measures. ...