前言众所周知,杉木是南方重要的传统用材树种。但是,它对立地条件要求过苛。除了中心产区(闽北、南岭山地、桂北、黔东南等)生长较好外,在其产区的边缘地带(如南部边缘高温强光的红壤丘陵地区及北部边缘的低温春旱地区),所栽植的杉木林大多生长不良(小环境例外),漫山遍野的低价值“小老头林”逐渐引起了人们的关注。鉴此问题,如何选择与培育出比杉木更为适应本区立地条件,而材积及其它指标又 Preface As we all know, Chinese fir is an important traditional timber species. However, it places too much harsh demands on the site. In addition to the good growth in the central producing areas (North Fujian, Nanling Mountain, North Guangxi, Qiandongnan, etc.), in the marginal areas of the producing areas (such as the high-temperature and high-intensity red soil hilly region on the southern edge and the cold spring drought region on the northern edge ), Most of the Cunninghamia lanceolata plantations are poorly grown (except for a small environment), and the low-value “Little-old Lin” that has spread over mountains and plains has gradually drawn people’s attention. In view of this question, how to choose and cultivate conditions better suited to this area than fir, and the volume and other indicators