Podrobnosti záznamu

Název
    Physical, chemical, and biochemical characteristics of soils in watersheds of the Bohemian Forest lakes: II. Čertovo and Černé Lakes
Údaj o odpovědnosti
    Jiří Kopáček, Jiří Kaňa, Hana Šantrůčková, Petr Porcal, Josef Hejzlar, Miloslav Šimek
    Jiří Kopáček, Jiří Kaňa, Hana Šantrůčková, Petr Porcal, Josef Hejzlar, Tomáš Picek, Miloslav Šimek, Josef Veselý
Autor
    Hejzlar, Josef
    Kaňa, Jiří, 1977-
    Kopáček, Jiří
    Picek, Tomáš
    Porcal, Petr
    Šantrůčková, Hana
    Šimek, Miloslav
    Veselý, Josef
Jazyk
    anglicky
Zdrojový dokument - seriál
    Silva Gabreta : sborník vědeckých prací ze Šumavy
Svazek/č.
    Roč. 8
Strany
    s. 67-93
Rok
    2002
Poznámky
    4 obr., 8 tab.
    4 obr., 8 tab., 29 bibl.
    il.
    Obsahuje bibliografické odkazy
    Zkr. název ser.: Silva Gabreta
Předmětová skupina
    cambisol
    dusík
    fosfor
    jezero ledovcové
    kapacita výměny kationtů
    kvartér oblastí kontinentálního zalednění Českého masivu
    pedologie
    pH
    podzol
    půda humusová
    síra
    uhlík
Geografické jméno
    Černé jezero (Klatovy)
    Čertovo jezero (Klatovy)
    ČR-Čechy
    Šumava
    Šumava-Černé jezero
    Šumava-Čertovo jezero
Klíčové slovo
    Biochemical
    Bohemian
    Characteristics
    Chemical
    Černé
    Čertovo
    Forest
    II
    Lakes
    Physical
    Soils
    Watersheds
Abstrakt (anglicky)
   asic physical, chemical, and biochemical properties of mountain forest soils were determined in the watersheds of Čertovo (CT) and Černé (CN) Lakes in the period of 1997-2001. The CT watershed was predominantly covered with "about"0.5 m deep spodo-dystric cambisol (58 per cent) and podzol (21 per cent), and shallow ("about"0.2 m) undeveloped organic rich soil (17 per cent). The dominant contribution of spodo-dystric cambisol and podzol was evident also in the CN watershed. Stones 2mm in diameter, fine soil, and moisture contributed on average (+-standard deviation) 50+-17 per cent, 21+-12 per cent, and 23+-9 per cent, respectively, to the total soil pools in the watersheds. Fine soil was sandy (48-81 per cent), with a low (1-4 per cent) content of clay, and its watershed weighted mean (WWM) pools were 225 and 143 kg.m2 in the CT and CN watersheds, respectively. Concentration of organic C was the dominant parameter, affecting concentrations of N, S, exchangeable base cations and protons
   .
   Relationship between C and P was less straightforward due to inorganic P forms associated predominantly with the Fe oxides in horizons rich in illuvial metals. The WWM element pools in the CT and CN watersheds were respectively: C, 1350 and 1120 mol.m-2; N, 59 and 50 mol.m2; P, 5.4 and 3.4 mol.m-2; and S, 2.8 and 2.6 mol.m2. Soil pH was generally low, with the lowest pHCaC12 values (2.5-3.3) in A horizons and highest (3.6-4.5) in the C horizons. The WWM cation exchange capacity of the CT and CN soils was 104 and 123 meq.kg-1, respectively, and was dominated by exchangeable A13+ (62 per cent and 55 per cent). The WWM base saturation of the CT and CN soils was 9 per cent and 15 per cent, respectively. It was primarily based on exchangeable Ca2+("about"50 per cent) and the contribution of Mg2+ and K+ was roughly equal ("about"20 per cent). The WWM C:N ratio was 23 and 22 for the whole CT and CN soil profiles, respectively, and varied between 23 and 28 in the forest floor (O horizons).
   Concentrations of C, N, and P in soil microbial biomass represented 0.3-1.4 per cent, 2-4 per cent, and 1-15 per cent (average 9 per cent) of the total C, N, and P contents, respectively, suggesting high microbial activity of soil. While the carbon mineralization rates were comparable in the CT and CN watersheds (with highest values in the O horizons, 19-60mmol.kg-1.d-1), nitrogen mineralization and nitrifying potential were 50-70 per cent higher in the CN watershed. The average N mineralization potential in two uppermost soil horizons (O plus A) of the CT and CN soils (2.1 and 2.8 mmol.m-2.d-1, respectively) was one order of magnitude higher than atmospheric deposition of N onto the forest floor and their respective nitrification potentials (2.8 and 4.2 mmol.m-2.d-1) were higher than NH4+ supplied by both atmospheric deposition and soil nitrogen mineralization
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    25. 3. 2008
Datum importu
    8. 8. 2012