The Study On Overground Vegetation And Underground Soil Microorganism Of Fanggan Restoration Area

Restoration is under the guide of theory in which ecosystems' succession process and development were controlled by physical, chemical and biological methods and then ecosystems' structure and function were restored. Fanggan area of Shandong Province was located in the center of Shandong mountain area and was the most important restoration style, belonging to grit soil. Forest coverage is up to 90%.Sample plots were in Fanggan restoration area, respectively Quercus acutissima Carruth. Community, Pine Community (including Pinus densiflora, Pinus tabulaeformis), Robinia pseudoacacia L. community, R. pseudoacacia L. and pine community, Platycladus orientalis (L.) Franco and pine community, P. orientalis (L.) Franco and R. pseudoacacia L. community. Others, Farm and Barren hill sample plots were selected as control, the later which was not disturbed by human at all. In each plot, 6 soil samples were taken at random. Shatters on the surface were deleted and we took the soil from 10cm-20cm. The soil was sieved in 2mm in order to remove plant shatters and stones. The prepared soil samples were stored in -20'C and used to be analysed in continuous experiments.Simpon index illustrated that the studied communities were high aggregated but lower biodiversity. The U values of McIntosh index were all above 1, which also proved the tree species in communities were not too many. On the other hand, the evenness of all species was very high, which could be proved by E values of Mclntosh index between 1.2-1.5. There was no distinct difference. All these characteristics were accordance with the source of human restoration area of Fanggan. While the results of Simpon index of herbage vegetation were all 0.5 or so, such results illustrated that the studied samples had high aggregation and biodiversity. More obviously, Shannon-Wienner index showed that H' and Hmax was very similar which proved that biodiversity of herbage vegetation in Fanggan area was the highest. These all showed herbage vegetation had been up to its succession climax type with...