Analyze And Study On The Relation Of Forest Coverage And Environmental Factors In AO HAN Banner

The conclusion through studying on the rate of coverage of forest and environment factor is: (1)The region with high rate of coverage have heavy precipitation and longer frost-free period and reduced big windy days and lower average speed of wind and decreased lowest temperature.(2)Precipitation increase in January and in July.(3)Hydraulic power erode and wind force erode are decreasing , volume of flood peak is lowering. The rate of coverage of forest have an evident effect on many environment factors such as soil and water reservation ecological environment improvement.The nutrient content of various densities of forest and various kinds of forest is different. The nutrient content of mixed forest of conifer and broadleaf and forest with fit density(example, camphor 2#lm> 2X2m> loose forest.).Analyzing the moisture content balance with the rate of forest coverage increase in straight ground water lever fall.Around 29.9% of the rate of forest coverage environment factor stay best stage.Because of different water content ,the same kind of forest is different in ability of water reservation bush > arbor. (Apricot > small-leaf Poplar Locust > CH pine > cypress).Different density of forest have different water reservation ability (Chi Fen poplar2X5m> 10X 10m > 2X2m).The conclusion through correlation analysis on annual ring grow quantity and precipitation and temperature is that the precipitation in local area is the main factor which affect forest growth quantity.In practical production to gain the best ecological and economic and social benefit affecting factors should be considered.