<正>对12种林术外生苗根菌的生物学特性进行了研究，以确定其最适生长温度、碳源、氮源以及pH。结果表明：12种菌根菌多数为高温型菌根真菌，其中9种在30℃、下长势良好，3种更适合在25℃下生长：多数菌根真菌适合偏酸的环境-在pH为j～6时长势良好；对不同的碳源和氨源。其最适合的生长条件也不同。

According to the characteristics and actualities of ecological public welfare forest and the actual conditions in the south of China, the common management pattern and the special management pattern of ecological public welfare forest were described. The restoration and reconstruction pattern of subtropical evergreen broad leaved forest and zonal vegetation in the key ecozone and the transformation pattern of coniferous and broad-leaved mixed forest in the general ecozone with muti-form were discussed in detail. The authors also pointed out, the ecological transformation and utilization was prerequisite, ecological public welfare forest should be transformed as orientation with object of forest multiple benefit utilization in order to establish the foundation of being sustainably managed.