不同经营模式杉木人工林林下植被的比较研究

hoice of Fujian Sanming xinkou teaching forest farm of Fujian Agriculture and Forestry University 55 years of pure Chinese fir plantation as the research object,through the design of close to nature management mode Ⅰ, close to nature management mode II, the conventional management and fencing against 4 differentbusiness models, different management pattern of Chinese fir understory vegetationspecies and biomass of 2 years observation. The results show that: close to nature management compared to conventional mode of operation in increasing abundance and biomass of forest vegetation has a big advantage. The increase in close to nature management after 9 months, Simpson index, Shannon-Wiener index and Pielou evenness were lower than before, but the conventional operation 9 months after the Shannon-Wiener index and Pielou evenness were decreased by 3.26% and 3.28%.The implementation of close to nature management is more close to nature and is better than conventional operation mode in Chinese fir plantation forest.