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- Title
Changes in mass element fluxes and their importance for critical loads: Geomon network, Czech Republic
- Authors
Skorepova, I.; Fottova, D.
- Abstract
Three years (1994-1996) of runoff, bulk deposition, and throughfall S and N data obtained from GEOMON, a network of 14 small forest catchments in the Czech Republic, are presented. In this paper, we assess regional differences and temporal trends in S and N fluxes under changing regional burdens. Decreases in S deposition have occurred in theemission-burdened northern and western parts of the Czech Republic, where remedial measures have been applied. For example, at the Uhlirska catchment (Jizerske hory Mtns., northern Czech Republic), throughfall S fluxes decreased from 72.7 to 48.5 kg ha-1 yr-1. In contrast, the relatively clean central and southern parts of the Czech Republic showed an increase in S deposition; for exampleat the Na lizu catchment (Sumava Mtns., southern Czech Republic) throughfall S fluxes increased from 9.0 to 18.8 kg ha-1 yr-1. In burdened catchments with damaged forests, high runoff of N was observed. Using fluxes of S and N measured at the GEOMON sites, we calculated critical loads and exceedances for both S and N in the catchments. The critical loads of S ranged from 505 to 3,631 mol L-1 yr-1 during 1994-1996; in about 80 % of the catchmentsthe critical loads were exceeded by atmospheric deposition; half of the catchments showed an exceedance for N.
- Subjects
NITROGEN; SULFUR; FORESTS &; forestry; BIOGEOCHEMISTRY; ATMOSPHERIC deposition
- Publication
Water, Air & Soil Pollution, 1998, Vol 105, Issue 1-2, p365
- ISSN
0049-6979
- Publication type
Article