毛竹残次林分改造技术研究

Studies on the Techniques of Remaking the Residual and Secondary Stands of Phyllostachys pubescens

本文对失管多年的毛竹残次林分采用封山育竹、劈草、锄草、深翻垦复和补栽毛竹等一系列营林措施，3年恢复毛竹成林，毛竹林面积从16．47hm2扩大到19．27hm2，立竹密度从555株／hm2提高到2295株／hm2,立竹平均胸径从7．2cm提高到9．9cm，3年后就能采伐利用，取得了显著的经济、生态效益。

A lot of silvicultural measures were adopted for the residual and secondary stands of phyllostachys out of management for many years. Three years later, the Ph. pubescens stand area expanded to 19. 27hm2 from 16. 47hm2, the standing bamboo density Increased to 2293 bamboos/hmZ from 555 bamboos/hm2, the average dbh of standing bamboos raised to 9. gcm frorm 7. 2cm and these stands could be felled for use. The evident economic and ecological benefits of the remake were obtained.