Dissolved Oxygen Fluctuation Regimes in Streams of the Western Corn Belt Plains Ecoregion
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پیدایش و میکرومورفولوژی تحول گچ در خاکهای لسی شمال ایران
Gypsum is the most common sulfate mineral in soils of arid and semi-arid regions. Two hundred million hectares of the earth’s surface and about 28 million hectares of Iranian arid soils are covered by gypsiferous soils. The studied soils consist of alluvial plane and eolian plains in northern Iran. Soils were classified as Haplocambids, Aquisalids and Endoaquepts. In this study, genesis, format...
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