摘要
在长武县刺槐林选取６１块标准地，对其立地、现实生长状况进行系统调查研究。结果表明：８年生树高能反映立地差异显著性；地貌部位是影响刺槐林生长发育的主导性因子。立地要素聚类分析结果表明，长武县刺槐林立地可归纳为４个立地类型：梁峁—塬坡；台地；沟坡；沟底。两个立地类型组：梁峁—塬坡—台地和沟底—沟坡。根据立地类型间和立地类型组间的林木生长状况差异显著性检测结果，同时考虑目前当地生产经营水平，将长武县刺槐林划分为两个经营类型：（１）梁峁—塬坡刺槐林；（２）沟底—沟坡刺槐林。
Systematic invesigations were done at 61 plots to study site and standing growth situation of Robinia pseudoacaia in Changwu County .The results showed that 8-year-old height of the trees could reveal the site conditions and geomorphological characteristic was a main factor responsible for the growth of the trees .4 site types and 2 site type groups were classified according to cluster analysis on main characteristcs of the sites ,the former included ridges and mound-plateau slope terrace, gully slope, gully bed and the latter ridge and mound-plateau slope-terraces and gully bed-gully slope. Two management types of the forests were divided in the light of tree growth among different site types and site type groups as well as local conditions ,which were the forest on ridge and mound-plateau slope and that on gully bed-gully slope. Productivity of the latter was higher than that of the former.
出处
《西北林学院学报》
CSCD
北大核心
1997年第2期31-36,共6页
Journal of Northwest Forestry University
基金
水利部"长武水土保持综合治理开发试验示范县"项目
关键词
刺槐林
立地
经营类型
生产力
Robinia pseudoacacia forests
site
management type
productivity
