班克松（ＰｉｎｕｓＢａｎｋｓｉａｎａＬａｍｂ．）７年种源试验结果表明，不同种源间树高、胸径、冠幅差异极显著，并与纬度紧密相关，随着纬度的增高，生长量递减。轮枝层数与经度呈显著负相关，其余性状与经纬度相关不显著。来自北纬４６°附近的２号、１号种源最好，北纬５０°和５５°的３号和５号种源最差 The results of seven-year provenance experiment in Pinus Banksiana Lamb showed that the differences of tree height, DBH and crown between different provenances were extremely significant and closely related to latitude. With the increase of latitude, the growth decreased. There was a significant negative correlation between the number of branches and longitude, and the correlation between other characters and latitude and longitude was not significant. No.2 from latitude 46 ° near the best, the best source for the first, north latitude 50 ° and 55 ° 3 and 5 were the worst