Sequential fractionation of reactive phosphorus in the sediment of a shallow eutrophic lake——Donghu Lake, China

ＩｎｔｒｏｄｕｃｔｉｏｎＳｅｄｉｍｅｎｔｐｈｏｓｐｈｏｒｕｓｈａｓｂｅｅｎｔｈｅｆｏｃｕｓｏｆａｎｕｍｂｅｒｏｆｓｔｕｄｉｅｓｄｕｅｔｏｉｔｓｒｏｌｅｉｎｔｈｅｅｕｔｒｏｐｈｉｃａｔｉｏｎｏｆｌａｋｅｓ.Ｐｈｏｓｐｈｏｒｕｓｆｒａｃｔｉｏｎｓｉｎｓｅ?..