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نمایش تعداد 1-10 از 47

0414 Biogeochemical cycles, processes, and modeling (4)
0428 Carbon cycling (3)
0432 Contaminant and organic biogeochemistry (1)
0454 Isotopic composition and chemistry (1)
0458 Limnology (1)
0469 Nitrogen cycling (1)
0496 Water quality (1)
0706 Active layer (1)
1616 Climate variability (1)
1632 Land cover change (2)