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ŠUMARSKI LIST 7-9/1974 str. 66     <-- 66 -->        PDF

rena još i kontaminacija sa naftom i njenim derivatima. Nalaz ukazuje
na mogućnost daljnjeg propadanja šume na tom području.


6.
U nizinskim šumama kod Lipovljana najopsežniju populaciju mikroorganizama
imalo je tlo u poplavnoj šumi lužnjaka (Genisto elatae-Quercetum
roboris Horv. 38), a najoskudniju tlo ispod sastojine hrasta lužnjaka
koja je osnovana na bivšoj poljoprivrednoj površini.
LITERATURA


1.
Alexande r M., 1965: Introduction to soil microbiology, New York, 19—54;
370—387.
2.
Dommergues Y. i Mangenot F., 1970: Ecologie microbienne du sol,
Paris, 155—233.
3.
F c h e r D., 1933: Untersuchungen über die Mikrobiologie des Waldbodens,
Berlin, 1—167.
4.
Li t vino v M. A., 1967: Opredeljitelj mikroskopičeskih počvenih gribov, Leningrad,
18—100.
5.
Lupre t M., 1955: Prilog izučavanju aerobnih bakterija u šumskim asocijacijama
Fagetum abietetosum i Blecho-Abietum, Šum. list, 9/10, Zagreb,
333—343.
6.
Mal t šev a N. N., 1971: Ecological an physiological peculiarities of oligonitrophilic
bacteria from several sail types of the Ukrainian SSR, u »Novoje
v izučenii biologičeskoj fiksacii azota« ed. Mišustin, Moskva, 154—160.
7.
Mišusti n E. N. i Emce v V. T., 1970: Mikrobiologija, Moskva, 183—316.
8.
Pa r k D., 1967: The importance of antibiotics and inhibiting substances, u
»Soil biology« ed. A. Burges i F. Raw, New York, 435—449.
9.
Pocho n J. i Barja c H., 1958: Traite de Microbiologie des sols, Paris,
71—101.
10.
Prpi ć B., 1972: Neke značajke prašume Čorkova uvala, Šum. list, 9—10,
Zagreb, 325—333.
11.
Prs a M., 1972: Prilog proučavanja bakterija prema fiziološkim funkcijama
u šumskim asocijacijama Fagetum abietetosum i Blecho-Abietum Gorskog
Kotara, Glasnik za šumske pokuse, 16, Zagreb, 169—176.
12.
S t e p a n o v a L. N., 1970: Izučenije sposobnosti kolekcionih kultur mikroorganizmom
usvaivat ugledovorodi parafinovova rjada, u »Mikroorganizmi v
seljskom hozjajstve« ed. Krasiljnikov, Moskva, 174—178.
Summary


MICROBIOLOGICAL INVESTIGATIONS OF THE SOILS OF CERTAIN
FOREST ECOSYSTEMS IN CROATIA


In the soils of various different forest phytocoenoses was investigated the
number of aerobic heterotrophic bacteria, micro-fungi and aotinomycetes. In
addition, investigated were in certain soils also Azotobacter chroococcum, oligonitrophilous
microorganisms, nitrification and cellulose decomposition.


The author underscores that the only too frequently neglected type of the
seasonal dynamic of the soil microflora as well as the climate, ought to be taken
into consideration in the interpretation of results even when samples are taken
only once a year. The author also noticed that when studying the correlation
between trees and soil microflora, we must sometimes tak into account the inliueence
of the roots of the near-the-ground herbaceous plants on the number of
microorganisms in the surface layers of forest soils (rhizosphere effect of these
roots).


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