vegetation zones
1.The park has a variety of vegetation zones, ranging from dense thickets to open wooded grasslands.
2.By using the software Sufer ,we create the distribution plot of IM and PE and define the eco-climate index of horizontal zonal vegetation type . By using software Spss, we give the regression equation of IE and PE respectively and calculate the index of temprature efficiency and the distributing altitude of vertical vegetation zones on the different slope of Changbai Mountain.
3.QUALITY RETROGRADATION OF ENVIRONMENT AND RECOVERY OF FOREST VEGETATION OF THE FRAIL ZONES OF FOREST ECOLOGICAL ENVIRONMENT IN THE UPPER REACHES OF YANGTSE RIVER
4.Second, conducting mountain closure to rehabilitate the overall vegetation of forests and grass on all barren hills in protected zones, including newly established open forests and shrubs.
6.Solutions to noise pollution include adding insulation and sound proofing to doors,walls,and ceilings; using ear protection,particularly in industrial working areas; planting vegetation to absorb and screen out noise pollution; and zoning urban areas to maintain a separation between residential areas and zones of excessive noise.
