广西岩溶地区优良造林树种选择研究

Optimal selection of tree species for forestation in lava areas of Guangxi Zhuang Autonomous Region

在充分遵循树种优化选择原则和树种比较试验的基础上,根据17个参试树种的生长情况、适应性和生物生态学特性,以及用材林、经济林和水土保持林3个林种的功能需求特征,采用层次分析法进行比较分析,最终筛选出适合广西岩溶地区的优良造林树种任豆、顶果木、柚木、肥牛树、银合欢、苏木和山黄皮,为该地区生态系统的恢复与重建提供科学、可靠的理论依据。

On the basis of surveys by generations of forestry scientists,following the principles of optimizing selection and comparing the in-situ trial results,17 trees belonging respectively to the categories of protection,timber,and nontimber forest trees were used as trial subjects.Observation and measurement were conducted for five consecutive years to record the survival,growth and development statistics so as to determine the adaptability of these trees.By analytic hierarchy process,seven trees of them that best meet the requirements were chosen for future planting,they are Zenia insignis,Acrocarpus fraxinifolius,Tectona grandis,Cephalomappa sinensis,Leucaena leucocephala,Caesalpinia sappan,and Clausena anisum-olens.