1972—1976年,我省开展群众性林木选优活动,先后选出一批赤松、黑松和油松优树,其中有少数属于自然变异优良类型,主要分布在临沂地区,如万寿官林场的油黑松(原1号),天麻林场的赤黑松(鲁黑73006)、塔山林场和万寿官林场的黑赤松(鲁黑73010、73011、73012)均是。1977年又重新调查了这三个类型,进一步了解它们的生长情况、表现特征及其后代测定结果。现以上述5株树的调查资料,简要介绍三个类型,供参考。 From 1972 to 1976, the province carried out mass forest tree planting activities. A number of excellent trees of Pinus sylvestris, Pinus thunbergii and Pinus tabulaeformis were selected. A few of them belonged to the excellent types of natural variation, mainly distributed in Linyi area, such as Wanshouguan forest farm Black pine oil (original No. 1), Tianma forest red black pine (Luhe 73006), Tashan forest and Wanshou official forest field black red pine (Luhe 73010,73011,73012) are. In 1977, the three types were revisited to learn more about their growth, their performance characteristics and their descendants’ results. The above five tree survey data, a brief description of the three types for reference.