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用加拿大小干松 9个种源的种子 ,在建始县作引种和种源试验。结果表明 ,该树种适于海拔 1 80 0m以上高寒山地生长 ,其种源以地理位置北纬 5 0°30′～ 5 1°30′的种子为佳。
Seeds of Nine Provenances of Canada Small Cedars were introduced and provenance experiment in Jianshi County. The results showed that the tree species was suitable for growing in the alpine mountain above 1800 meters above sea level. Its provenance was better than the seeds with latitude of 50 ° 30 ’~ 51 ° 30’ north latitude.