Investigation of soil chronosequences of the Wind River Range (Wyoming) using geochemical mass balances and numerical dating techniques

Description: Das Projekt "Investigation of soil chronosequences of the Wind River Range (Wyoming) using geochemical mass balances and numerical dating techniques" wird vom Umweltbundesamt gefördert und von Universität Zürich, Geographisches Institut durchgeführt. Glaciers are significant agents of physical and chemical erosion; for example, the mechanical denudation of glaciated valleys in Alaska and Norway is an order of magnitude greater than that in equivalent non-glaciated basins. Knowledge about weathering rates and mineral transformation processes is fundamental in analysing the release of nutrients to ecosystems. Element losses and geochemical properties along a chronosequence in high alpine areas of the Wind River Range will be determined empirically. Samples from moraines in 3 separate regions of the mountains (high alpine above 3000m, montane forest below 3000m, and sagebrush steppe below 2100m) along 3 transects (north, middle, and southern) will be studied. Each locality consists of a catena (crest, backslope, toeslope). Stocks of organic matter will be assessed for all sites. Additionally, we focus on the time-dependent evolution of organic matter quality by applying a chemical and the physical density fractionation technique. The chemical and physical fractionation techniques will insight into the development of stable and labile organic matter and into interactions of organic matter with the mineral phase.

Types:

SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: Nordfriesland ? Tierhaltungsanlage ? Wyoming ? Nährsalz ? Fluss ? Alaska ? Erzgebirge ? Nidda ? Norwegen ? Zürich ? Geochemie ? Mineralstoff ? Wind ? Erosion ? Datierung ? Gletscher ? Organisches Material ? Technosol ? Stoffbilanz ? Standortwahl ? Steppe ? Technik ? Berg ? Chemikalien ? Boden ? Hochgebirge ? Verwitterung ? Ökosystemforschung ? Evolution ? Fraktionierung ? Alpen ? Einzugsgebiet ? Moränengebiet ? Physikalische Einwirkung ? Ökosystem ? Wetter ? Wald ? Biosphäre ? Tal ? Gebiet ? Gebirge ? Isar ? Mineral ? Buchgrundstück ? Tatra ? BEWERTEN ? UNTER ? Flächensanierung ? GRUNDLAGE ? NOERDLICH ? Stall ?

License: cc-by-nc-nd/4.0

Language: Deutsch

Organisations

• Umweltbundesamt (Bereitsteller*in)
• University of Northern Iowa, Department of Geography, Soil Geomorphology - Quaternary Stratigraphy (Mitwirkende)
• Universität Zürich, Geographisches Institut (Betreiber*in)

Time ranges: 2010-07-01 - 2014-07-31

Alternatives

• Language: Englisch/English https://ufordat.uba.de/

Status

Aktiv

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