Evoluția intrărilor de ioni minerali în ecosisteme forestiere din România în perioada 1998-2002 [Trends in mineral ions depositions în forest ecosystems from Romania for the period 1998- 2002]
Bulk precipitation were collected in 6 stations located în forest ecosystems from north and south Romania, during 1998-2002. Samples were analysed in the laboratory for pH and the major anions and cations. For the 3 stations in the north only data from 1998 to 2001 were completed. The fluxes o...
| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
”Ștefan cel Mare” University of Suceava, Faculty of Forestry and “Marin Drăcea” National Research-Development Institute in Forestry - Station Câmpulung Moldovenesc
2003-12-01
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| Series: | Bucovina Forestieră |
| Subjects: | |
| Online Access: | http://www.bucovina-forestiera.ro/arhiva/2003/11(2)/evolutia-intrarilor-de-ioni-minerali-in-ecosisteme-forestiere-din-romania-in-perioada-1998-2002.pdf |
| Summary: | Bulk precipitation were collected in 6 stations
located în forest ecosystems from north and south
Romania, during 1998-2002. Samples were
analysed in the laboratory for pH and the major
anions and cations. For the 3 stations in the north
only data from 1998 to 2001 were completed.
The fluxes of mineral ions in bulk deposition
measured in 2002 for the 3 stations located in south
Romania were compared to the means determined
in 1998-2001. The inputs decreased for S-SO4
2- (
19-25 %), N-NO3
-
( 29-73%) and Cl-
(cu 9-10%).
For H+
, N-NH4
+
, Na and K+
no trends were clearly
observed. Ca2+ and Mg2+ fluxes in bulk deposition
decresed in 2002 with 39-66% and respectivly 31-
78% related to 1998-2001.
Comparison of the mean ions fluxes registred
in the north and south Romania during 1998-2001
revealed that excepting for H+ and Cl-
, which were
higher in north than in south, for all the other ions
the values determined in north were equal (N-NO3
-
) or lower (S-SO4
2-, N-NH4
+
, K+
, Mg2+, Ca2+) than
those measured in the south part of Romania.
Values of mineral ions inputs registred in
Romania from 1998 to 2002 were compared to
those calculated in some zones of Europe from
1993 to 1998. Fluxes of H+
, Cland
Na+
were relatevly
low compared to those form Europe. The SSO4
2- fluxes were moderate and high and the NNH4
+
, K+
, Mg2+, Ca2+ were high în Romania related to
those determined in Europe. |
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| ISSN: | 1582-0769 1582-3725 |