Ma Xun
Abstract
On the basis of collecting morniting data during past 11 years(1988～1998),the watec quality condition in Jilin reaches of second_songhua river is analyized in this paper.
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On the basis of collecting morniting data during past 11 years(1988～1998),the watec quality condition in Jilin reaches of second_songhua river is analyized in this paper.
Key concepts: Water quality, Quality (philosophy), Environmental science, Water resource management, Hydrology (agriculture), Biology, Ecology, Geology