山桃在宁南山区的适生表现及利用

Adaptable Features of Amygdalus davidiana(Carr.) Franch and Its Utilization in Mountainous Area in South of Ningxia

山桃是宁夏南部山区的乡土树种之一,也是当地抗旱造林的主要树种。本文对采自宁南山区不同林区的山桃种子,分别进行本地和异地育苗试验,结果显示其幼苗地径和高生长没有较大差异,受立地条件影响较小。对不同区域树龄4年的山桃生长调查表明,山桃在形态、生长状况、结实数量及抗病虫害等方面有一定的相似性和稳定性。通过方差分析,认为在宁南山区范围内,山桃的树高和地径生长没有显著差异,表现出较强的适应性和一致性。

Amygdalus davidiana （Carr.） Franch is one of local tree species in mountainous area in south of Ningxia, and one of the main local tree species of drought resistance in fcrestation. Through the seedling tests in local and different areas with the seeds of Amygdalus davidiana （Carr.） Franch, the results show that there is no obvious differences between ground diameter and height with less influenced by site conditions. According to the investigation on growth of fouryear Amygdalus davidiana （Carr.） Franch in different areas, there is certain similarity and stability forAmygdalus davidiana （Carr.） Franch on shape, growth, number of fruitification and insect resistance. Through variance analysis, in the south mountainous area of Ningxia, there are no obvious differences between height and ground diameter of Amygdalus davidiana （Carr.） Franch, and it shows a strong adaptability and stability.