桂花林场立地类型划分及速生丰产潜力初探

Site Classification and Discussions on the Productivity Potential of Fast-growing and High-yielding Plantation in Guihua Forest Farm Hubei

本文通过对湖北桂花林场的调查,找出了影响林木生长的主导因子,并据此划分立地类型,实现了杉木——马尾松在相同立地上的地位指数转换及各立地等级的产量预测,还把调查扩大到浙江开化林场、湖南金洞林场等地,分析了主要经营措施对林分生产力的影响,发现集约经营可改变林木生长过程,增产潜力很大。速生丰产林在经济效益方面优于一般林。

This paper classifes the site types in Guihua forest farm according to leading site factors and deals with site index comparisons for Chinese fir and Masson's pine on the same site and forecasts productivity. The relationship between forest productivity and management is analysed affter surveying in Guihua forest farm, Kaihua forest farm and Jindong forest farm etc., It is found that intensive culture can change increament curve of a tree and has a great potentiolity for increasing the yield of a stand.The profit of fast-growing and high-yielding trees is higher than common timber production forest.