The increase of wetland was remarkable in valley, gentle slope and the area with thick permafrost active layer, and also in area of regulating capacity of forest hydrology decreasing.

• 在森林水文调节功能下降的地区、地势较低的谷地，坡度平缓的坡地以及冻土活动层增加的地区，湿地面积明显增加。