论文部分内容阅读
前言柠檬桉(Eucalgptus Citriodora)是雷州林业局大面积桉树人工林的主要组成树种之一,它具有适应性广,抗风力强,遗传性稳定,生长量高,用途大,经济价值高等优点。但在生产上还存有一些问题,如未能做到适地适树,造林后部份林木生长不良,对其生长规律的研究还很不够,特别在各种立地条件下,它的生物学及造林学特性认识不足。因此深入研究不同立地条件下各类柠檬桉林分的生长规律,对于正确采取和改进营林技术措施,为制定
Introduction Eucalgptus Citriodora is one of the major tree species of large-scale Eucalyptus plantation in Leizhou Forestry Bureau. It has the advantages of wide adaptability, strong wind resistance, stable heredity, high growth, large use and high economic value. However, there are still some problems in production. For example, trees can not be properly planted and some trees grow poorly after afforestation. Research on their growth patterns is not enough. In particular, under various site conditions, its biology And afforestation characteristics of lack of understanding. Therefore, in-depth study of the growth of various types of lemon eucalyptus stand under different site conditions, for the correct adoption and improvement of technical measures for forest management, in order to develop