期刊
CLEAN-SOIL AIR WATER
卷 42, 期 3, 页码 236-242出版社
WILEY
DOI: 10.1002/clen.201100065
关键词
Ecological factors; Limnoecology; Physical and chemical parameters; Water quality
类别
资金
- Ministry of Education and Research through CNCSIS [426]
Lake Rosu (Red Lake) in the Hasmas (Curmaturii) Mountains was created by the natural barrage of the Bicaz River, a tributary of the Bistrita River, in 1837. Measurements in 2009 were performed, using the Hach Lange multi-parameter meter, to determine physical and chemical parameters of water. Basic parameters for the analysis of the ecological conditions were assessed: temperature, dissolved oxygen and pH. Surface water temperature was 2-3 degrees C lower in summer and higher in winter (except during the period of ice cover) compared with spring and autumn data. At depths <7m, the temperature showed constant values of 4-6 degrees C with nearly the same values in autumn and spring. pH values lied between 7 and 8 at the surface as well as in depth. During the summer, pH values decreased from 8 to 7 in the depth. In spring and autumn, the pH values remained constant and identical. The value of dissolved oxygen was good throughout the year. The surface reached values of 10mgO(2)/L annually at depths >7-8m with a limit of 0mgO(2)/L. Lake Rosu becomes a mountain aquatorium which attracts many tourists. However, its degree of pollution is extremely low.
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