Podrobnosti záznamu

Název
    Spatial and temporal changes in aluminum, iron, and base cations for an acidic episode at East Bear Brook, Maine USA
Autor
    Laird, M. K.
    Navrátil, Tomáš
    Norton, S. A.
Konference
    BIOGEOMON (25.6.2006-30.6.2006 : Santa Cruz, California, Spojené státy americké)
Jazyk
    anglicky
Typ dokumentu
    abstrakt
Zdrojový dokument - monografie
    Biogeomon 2006. Book of Conference Abstracts
Strany
    s. 128-128
Poznámky
    Rozsah: 1 s.
    Výzkumný záměr: CEZ:AV0Z30130516
Předmětová kategorie
    chemistry
    episode
    manipulated
    streamwater
    watershed
Klíčové slovo
    Acidic
    Aluminum
    Base
    Bear
    Brook
    Cations
    Changes
    East
    Episode
    Iron
    Maine
    Spatial
    Temporal
    USA
Abstrakt (anglicky)
   The hydrogeochemical dynamics of aluminum (Al), iron (Fe), and base cations (Ca2+, Mg2+, K+, Na+) at East Bear Brook, Maine were assessed spatially and temporally for a high discharge episode. Bear Brook is a paired watershed study with adjacent catchments, West Bear and East Bear. West Bear has been artificially acidified with bi-monthly additions of (NH4)2SO4 since 1989 as a watershed manipulation experiment (Fernandez et al., 2003). East Bear is the untreated reference. The East Bear catchment is 10.2 ha with post-Wisconsinan soils underlain by granite and quartzite bedrock. In October 2005 stream water was collected simultaneously through the hydrograph at four locations, separated by 400m along the stream. A sample collection protocol was designed and implemented to maximize data quality. Six different samples were collected for (1) anions, base cations, DOC and ANC, (2) total metals, (3) dissolved major and trace metals, (4) organically-bound Al, (5) DIC, and (6) closed cell pH.
Přispěvatel
    AV ČR Brno, Geologický ústav
Kód přispěvatele
    AV ČR, GLÚ
Zdrojový formát
    U
Datum importu
    8. 8. 2012