title: Nitrogen and mineral-element cycles in the steppe-depression birch groves of North Kazakhstan.
mesh_terms: D000535:Aluminum / Q000032:analysis; D002118:Calcium / Q000032:analysis; D002713:Chlorine / Q000032:analysis; D007501:Iron / Q000032:analysis; D007623:Kazakhstan; D008274:Magnesium / Q000032:analysis; D008345:Manganese / Q000032:analysis; D008903:Minerals / Q000032:analysis*; D009584:Nitrogen / Q000032:analysis*; D010758:Phosphorus / Q000032:analysis; D010944:Plants / Q000032:analysis*; D011188:Potassium / Q000032:analysis; D012825:Silicon / Q000032:analysis; D012964:Sodium / Q000032:analysis; D013455:Sulfur / Q000032:analysis; D014197:Trees
chemical_list: D008903:Minerals; D010758:Phosphorus; D008345:Manganese; D002713:Chlorine; D013455:Sulfur; D012964:Sodium; D000535:Aluminum; D007501:Iron; D008274:Magnesium; D009584:Nitrogen; D011188:Potassium; D002118:Calcium; D012825:Silicon