Saihanwula Nature Reserve Soil

Saihanwula Nature Reserve is located in Southern Hinggan mountains in china, East Asia broad-leaved forest to The temperature cold coniferous forest、grassland to forest in the double intersection of the transition zone, also the northeast area、huabeiqu、mengxinqu, the special geographical position and natural conditions make the Saihanwula Nature Reserve unique variety of animal and plant flora, be connected each big animals and plants flora of the link and the bridge; At the same time is also an important source of West LiaoHe River water conservation land.In this paper, Saihanwula National Nature Reserve for the research object, according to China’s current "China’s soil classification systems" classification principles and basis for Saihanwula National Nature Reserve soil’s classification, and investigate the protection area’s main soil into soil conditions and factors、profile morphology、soil physical and chemical properties of the current situation, the results are as follows:(1) According to investigation found that Saihanwula Nature Reserve has Dark Felt Soil、Gray Forestry Soil、Brown Soil、Dark Castanozems、Meadow Soil、Sand Soil in main distrubution. The southern mountains in steep, soil vertical distribution is very apparent.(2) In combination of soil, the forest soil is dominant,in which Gray Forestry Soil and Brown Soil accounting for about57.07%of the total area; Dark Castanozems accounting for about10%; Meadow Soil accounting for about8.06%; Sand Soil accounting for about23%; Dark Felt Soil accounting for aboutl.56%of the total area.(3) In this reserve, grassland transition to forest,forest environment less developed, often with a thin forest and grass irrigation landscape.Compared with the past and precipitation reduced, increase air drought、evaporation capacity increased year by year, leaching process weakened.