不同经营模式杉木人工林林下植被的比较研究

Comparative Study of Chinese fir Plantation Vegetation under Different Management Patterns

[目的]比较不同经营模式下杉木人工林林下植被种类和生物量。[方法]选择福建农林大学莘口教学林场杉木人工纯林为研究对象,通过设计近自然经营模式Ⅰ、近自然经营模式Ⅱ、常规经营和封育对照4个不同经营模式处理,对不同经营模式杉木林林下植被种类和生物量进行了2年的定位观测。[结果]近自然经营方式相比常规经营方式在增加林地植被丰富度和生物量上有较大的优势。在近自然经营9个月后Simpson指数、Shannon-Wiener指数以及Pielou均匀度均较之前有所增加,而常规经营9个月后Shannon-Wiener指数和Pielou均匀度分别降低了0.06和0.02。[结论]在杉木人工林实施近自然经营是更贴近自然规律且优于常规经营的营林方式。

[Objective] The Chinese fir plantation vegetation under different management patterns was studied.[Method] Choice of Fujian Sanming xinkou teaching forest farm of Fujian Agriculture and Forestry University 55 years of pure Chinesefir 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 different business models,Chinese fir understory vegetation species and biomass under different management patterns were observed.[Result] Close to nature management compared to conventional mode of operation has a big advantage in increasing abundance and biomass of forest vegetation.The Simpson index,Shannon-Wiener index and Pielou evenness of close to nature management after 9 months were better than before,but the Shannon-Wiener index and Pielou evenness after 9 months conventional operation were decreased by 0.06 and 0.02.[Conclusion] The implementation of close to nature management more close to nature and better than conventional operation mode in Chinesefir plantation forest.