速生菇木树种黧蒴引种试验

通过4年的引种试验，结果表明，黧萌生长快，菇术产量高，生物量大，直播造林4年生单株平均胸径、树高，冠幅和菇木产量分别为3．7cm、4．0cm、25.和5.2kg,分别是乡土速生菇木树种马桂木、枫香、拟赤杨的1．5～2.2倍、1．3～1．5倍、1．3～2、1倍和4．3～87倍；适应性较强，浅极性，幼苗对环境的抗逆性较弱，生长缓慢，第3年开始表现出速生的特性。适宜在我区低山、丘陵地引种推广。

Introduction Experiment of Fast-growing Mushroom Wood Species-Castanopsis fissa

The result of four years introduction experiment showed that Casanopsis fissa growed faxt with high mushroom wood yield and biomass. The mean D. B. H., tree height, crown size and mushroom wood yield in 4 years by direct Seeding plantation were 3. 7cm. 4. 0m, 2. 5mand 5. 2kg respectively. It was 1. 5~2. 2times, 1. 3 ~ 1. 5 times, 1. 3 ~2. 1 times and 4. 3~8. 7 times of that in the native fast-growing species like nriodecdron chinense Liquidambar formosana and Alniphyllum fortunei It had better adaptability, shallow root. The young seedling had weak anti-bad environment and growed slowly. Only three years after direct seeding it got the fast growing characters.