Description: Das Projekt "Spatially modelling forest trafficability with ForHym and LiDAR-based cartographic depth-to-water" wird vom Umweltbundesamt gefördert und von University of New Brunswick, Faculty of Forestry and Environmental durchgeführt. The thesis proposal deals with mapping weather-affected changes in soil moisture over time. This is to visualize where and when soils would be subject to severe rutting and compaction under forest operations. The approach taken is modular by connecting temporal hydrothermal processes dealing with soil wetting, drying, freezing, and thawing to spatially anticipated locations of dry versus wet soil drainage conditions. The temporal variations within specific textured soils can be modeled at daily resolution based on air temperature, and precipitation (rain, snow) data. This is done with the Forest Hydrology Model (ForHyM). The spatial variations can be derived from LiDAR-generated bare-ground elevation surfaces at 1 m resolution by way of the newly developed metric depth-to-water index (DTW), for which DTW less than 10 , 10-25, 25-50, 50-100, greater than 100 cm indicates very poor, poor, imperfect, moderately well and well drainage conditions, respectively. The results of doing so will be illustrated for forested areas in Northern and Central New Brunswick in reference to actual forest harvesting and wood forwarding tracks. The attempt is to generalize the methodology for weather-dependent and geospatially base forecasting of soil conditions to better enable forest operation planning as seasons change from dry to wet and from wet to dry within seasons and from year to year.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Braunschweig ? Holzeinschlag ? Lidar ? Brunnen ? Aufbereitungstechnik ? Ernte ? Hefe ? Kartographie ? Lufttemperatur ? Regenwasser ? Thermalquelle ? Topographie ? Waldboden ? Frost ? Ackerrandstreifen ? Karte ? Bodenverdichtung ? Waldfläche ? Regen ? Regen ? Schnee ? Bodenzustand ? Trocknung ? Daten ? Bodenfeuchte ? Jahreszeit ? Nassverfahren ? Verwitterung ? Dränung ? Bewässerung ? Modellierung ? Bodenprozess ? Waldzustand ? Oberflächengewässer ? Gewebe ? Wasserstand ? Wetter ? Wald ? Hydrologie ? Trockenverfahren ? Entwässerung ? Änderung ? Niederschlag ? Forstwirtschaft ? Ermächtigungsgrundlage ?
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2013-01-01 - 2024-11-29
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