View source for River typology in Romania

=River typology in Romania=

==General description==

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==Classification system==

<table>
<tr>
<td> Stream type (former symbol) </td> 
<td> Code </td>
<td> eco </td>
<td> Catchment size (km2) </td> 
<td> Geology </td>
<td> Lithological bed structure </td> 
<td> Slope (%0) </td>
<td> Altitude (mdMN) </td>
<td> Precipitation (mm/year) </td> 
<td> Temperature (°C) </td>
<td> q (l/s/km2) </td>
<td> q 95% (l/s/km2) </td>
<td> Fish zonnation </td>
</tr>
<tr>
<td> Stream in mountain, pied-mont or high plateau area (01+02) </td>
<td> RO01 </td>
<td> 10 </td>
<td> 10-1000 </td>
<td> a-siliceous, b-calcareous, c. organic </td> 
<td> blocks, boulders, gravel </td>
<td> 20-200 </td>
<td> >500 </td>
<td> 600-1400 </td>
<td> -2 +9 </td>
<td> >5 </td>
<td> >0.5 </td>
<td> Traut, Grayling, Dace </td>
</tr>
<tr>
<td> Stream sector in pied-mont or high plateau area 
Stream sector in pied-mont or high plateau area with endemic species (03) </td>
<td> RO02
RO02* </td>
<td> 10 </td>	
<td> 1000-10000 </td>
<td> a-siliceous, b-calcareous </td>
<td> gravel, boulders </td>
<td> 3-20 </td>
<td> >500 </td>
<td> 600-800 </td>
<td> 7-9 </td>
<td> 5-20 </td>
<td> 1-3 </td>
<td> Grayling, Chub, 
Romanichthys valsanicola (*) </td>
</tr>
<tr>
<td> Stream sector in intramountain depression (05) </td>
<td> RO03 </td>
<td> 10	</td>
<td> >10 </td>
<td> a-siliceous, b-calcareous, c-organic </td>
<td> sand, gravel, boulders </td>
<td> 1-3 </td>
<td> >500 </td>
<td> 600-800 </td>
<td> 7-9 </td>
<td> 3-20 </td>
<td> 0.2-2 </td>
<td> Dace, Chub </td>
</tr>
<tr>
<td> Stream in hilly or plateau area (07+09+014+23) </td>
<td> RO04 </td>
<td> 10a,11,12,16 </td>
<td> 10-1000 </td>
<td> a-siliceous, b-calcareous, c-organic </td>
<td> sand, gravel </td>
<td> 1-30 </td>
<td> 200-500 </td>
<td> 500-700 </td>
<td> 8-10 </td>
<td> 1-5 </td>
<td> 0.01-0.5 </td>
<td> Dace </td>
</tr>
<tr>
<td> Stream sector in hilly and plateau area (04+06+08)	</td>
<td> RO05 </td>
<td> 10, 10a </td>
<td> 1000-10000 </td>
<td> a-siliceous, b-calcareous, c-organic </td>
<td> sand, gravel </td>
<td> 0.5-20 </td>
<td> 200-500 </td>
<td> 500-700 </td>
<td> 8-10 </td>
<td> 3-15 </td>
<td> 0.2-2 </td>
<td> Chub, Med. Barbel </td>
</tr>
<tr>
<td> Stream in plain area (10+15+24) </td>	
<td> RO06 </td>
<td> 11,12,16 </td>
<td> 10-2000 </td>
<td> a-siliceous, b-calcareous, c-organic </td>
<td> sand, silty clay, silt </td>
<td> <8 </td>
<td> <200 </td>
<td> 400-600 </td>
<td> 9-11 </td>
<td> <3 </td>
<td> <0.3 </td>
<td> Chub, Perch, Carp </td>
</tr>
<tr>
<td> Stream sector in plain area (11) </td>
<td> RO07 </td>
<td> 11 </td>
<td> 1000-3000 </td>
<td> a-siliceous, b-calcareous, c-organic </td>
<td> Sand, silt, clay </td>
<td> <1	</td>
<td> <200 </td>
<td> 400-500 </td>
<td> 9-11 </td>
<td> 1-3 </td>
<td> 0.2-0.4 </td>
<td> Dace </td>
</tr>
<tr>
<td> Stream sector in plain area (16) </td>
<td> RO08 </td>
<td> 12	</td>
<td> 1000-5000 </td>	
<td> a-siliceous, b-calcareous, c-organic </td>
<td> Sand, silt	</td>
<td> 0.5-5 </td>	
<td> <200 </td>	
<td> 400-600 </td>
<td> 9-11 </td>	
<td> 1-3 </td>	
<td> 0.2-0.4 </td>
<td> Chub, Perch </td>
</tr>
<tr>
<td> Stream sector with wetlands in plain area (25) </td>
<td> RO09 </td>
<td> 16 </td>
<td> 1000-5000 </td>
<td> a-siliceous, b-calcareous, c-organic </td>
<td> Sand, silt	</td>
<td> <2	</td>
<td> <200 </td>
<td> 400-600 </td>
<td> 9-11 </td>
<td> 1-3 </td>
<td> 0.2-0.4 </td>
<td> Chub </td>
</tr>
<tr>
<td> Stream sector in plain area F>3000km2  (11)
F>5000 km2 (12+17+26) </td>
<td> RO10
RO10*	</td>
<td> 11 </td>
<td> 12,16 </td>	
<td> >3000 
>5000 </td>
<td> a-siliceous, b-calcareous, c-organic </td>
<td> Sand, silt, clay </td>
<td> 0.5-5 </td>
<td> <200 </td>
<td> 400-600 </td>
<td> 9-11 </td>
<td> 2-10 </td>
<td> 0.05-1 </td>
<td> Chub, Barbel, Dace </td>
</tr>
<tr>
<td> Stream sector with wetlands in plain area F>3000km2  (11)
F>5000 km2 (13+18+27) </td>	
<td> RO11 
RO11* </td>
<td> 11,
12,16	</td>
<td> >3000
>5000 </td>
<td> a-siliceous, b-calcareous, c-organic </td>
<td> Sand, silt clay </td>
<td> <1	</td>
<td> <200 </td>
<td> 400-600 </td>
<td> 9-11 </td>
<td> 2-10 </td>
<td> 0.1-1 </td>
<td> Barbel, Carp </td> 
</tr>
<tr>
<td> Danube river-Cazane Km 975-863 (RO19) </td>
<td> RO12 </td>
<td> 12 </td>
<td> 570.900-574.850 </td>
<td> Calcareous </td>
<td> sand, gravel, boulders </td>
<td> 0,07 </td>
<td> 100-200 </td>
<td> 600-800 </td>
<td> 8-10 </td>
<td> 9 </td>
<td> 3 </td>
<td> Carp </td>
</tr>
<tr>
<td> Danube river Cazane-Calarasi Km 863-375.5 (20) </td>
<td> RO13 </td>
<td> 12 </td>
<td> 574.000-698.000 </td>
<td> Siliceous </td>
<td> sand, gravel, boulders </td>
<td> 0,05 </td>
<td> 5-70 </td>
<td> 500-600 </td>
<td> 9-11 </td>
<td> 8	</td>
<td> 2	</td>
<td> Carp* </td>
</tr>
<tr>
<td> Danube river Calarasi-Isaccea Km 375.5-100 (21) </td>	
<td> RO14 </td>
<td> 12	</td>
<td> 698.000-780.650 </td>	
<td> Siliceous	</td>
<td> sand, clay </td>
<td> 0,04 </td>
<td> 5	</td>
<td> 400-500 </td>
<td> 9-11 </td>
<td> 7	</td>
<td> 1.5 </td>
<td> Carp* </td>
</tr>
<tr>
<td> Isaccea-Sulina (22) </td>
<td> RO15 </td>
<td> 12	</td>
<td> 805.300 </td>
<td> Organic </td>
<td> sand, silt </td>
<td> <0,01 </td>
<td> <5	</td>
<td> 400-500 </td>
<td> >11 </td>
<td> </td> 
<td> </td>
<td> Carp, Pontic shad** </td>
</tr>
<tr>
<td> Streams qualitatively influenced by natural causes and temporar waters
Stream influenced from qualitative point of view by natural causes (28)	</td>
<td> RO16 </td>
<td> </td>
<td> 10-1000 </td>									
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> Temporary stream in mountain area (29) </td>
<td> RO17 </td>
<td> </td>
<td> 10-1000 </td>
<td> siliceous </td>
<td> blocks, boulders, gravel </td>
<td> 20-150 </td>
<td> >800 </td>
<td> 700-1100 </td>
<td> -2 +8 </td>
<td> 2-16 </td>
<td> 0 </td>
<td> </td>	
</tr>
<tr>
<td> Temporary stream in pied-mont or high plateau area(30) </td>
<td> RO18 </td>
<td> </td>
<td> 10-1000 </td>
<td> a-siliceous, b-calcareous </td>
<td> boulders, gravel </td>
<td> 25-45 </td>
<td> 500-800 </td>
<td> 600-800 </td>
<td> 7-9 </td>
<td> 5-17 </td>
<td> 0	</td>
<td> </td>
</tr>
<tr>
<td> Temporary stream in plateau area (31) </td>
<td> RO19 </td>
<td> </td>
<td> 10-1000 </td>
<td> a-siliceous, b-calcareous </td>
<td> gravel, sand, silt	</td>
<td> 5-30 </td>
<td> 200-500 </td>
<td> 450-550 </td>
<td> 8-10 </td>
<td> 1.5-7 </td>
<td> 0	</td>
<td> </td>
</tr>
<tr>
<td> Temporary stream in plain area (32) </td>	
<td> RO20 </td>
<td> </td>
<td> 10-2000 </td>
<td> a-siliceous, b-calcareous </td>	
<td> sand, silt </td>
<td> <8 </td>
<td> <200 </td>
<td> 400-500 </td>
<td> 9-11 </td>
<td> <2	</td>
<td> 0	</td>
<td> </td>
</tr>
</table>

==References==

[http://www.rowater.ro Link to Romanian Water Authority]<br>