The Research on effects for bog ecosystem of loading of nutrient from Water shed of the bog

小沼湖的湖水pH值在6.7 ~ 8.2中性。酸性区为沼泽区，有7条河流为酸性河流。并且，有必要在低比较中调查5条河流的水温差异，否则就会得到充分的信息。阿扎米沼泽三条河流的溶解有机碳（DOC）较高。溶蚀有机物的浓度较低，流入大江的河流最多。从Oe沼泽流入的DOC似乎很少。由于其δ^<18>O值与源自泥炭沼泽的河水的δ^<18>O值相差较大，因此泥炭层较老的河水似乎已与河水混合。而且，沼泽的河水中硝酸浓度较低。它似乎吸收了沼泽里的氮。其硝酸浓度高于湖泊水、河流水。来自盆地的自然氮负荷似乎支持了小沼湖的氮。阐明小沼富营养化的影响因素是十分必要的。

There was lake water pH of Ozenuma within 6.7〜8.2 neutrality. There was tile bog in the acidity, and 7 rivers were acid rivers in the profit. And, it is necessary that the water temperature of 5 rivers investigates the difference between the basin in the low comparison otherwise well-informed. The dissolution organic carbon (DOC) of three rivers in Azami bog is high. The concentration of the dissolution organic substance is low largest inflow river Oe river. The inflow of the DOC from the Oe bog seems to be little. About 1%o heavily since it has the δ^<18>O value of the river water which derives from the bog as well as it further than other river, the water in which peat layer is old a little seems to have been mixed with the river water. And, the nitric acid concentration in fiver water of bog is low. It seemed to take in the nitrogen in the bog. It is higher than the lake water river water nitric acid concentration. The nitrogen load from the nature in the basin seems to support the nitrogen of Lake Ozenuma. It is necessary to clarify the factor of the eutrophication of Ozenuma.