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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。后者的生产力高于前者
In Changwu County, the locust forest selected 61 standard areas, its site, the actual growth status of a systematic investigation. The results showed that the 8-year-old tree height reflects the significance of site differences. The topography is the dominant factor that affects the growth and development of Robinia pseudoacacia. The results of cluster analysis showed that the site of locust locust in Changwu County can be classified into four types of sites: Liang 峁 - 塬 slope; terrace; gully slope; Two site types group: Liang 峁 - slope - platform and ditch - trench slope. According to the test result of significant difference in the growth status of tree species between site type and site type group, taking into account the current level of local production and management, the Robinia pseudoacacia forest in Changwu County is divided into two types: (1) Liang 峁 - Robinia pseudoacacia ; (2) Ditch - Slopes Robinia forest. The latter’s productivity is higher than the former