油松引入陇县关山林区已有27个春秋。境内四个国营林场和部分乡镇已有油松人工林3000多公顷,建立油松种了园27ha,母树林83ha,油松用材林已进入于材林时期,母树林和种子园已开始挂果结实。 Introduced into the Longshan Guanshan Forest Hill has 27 spring and autumn. More than 3,000 hectares of Pinus tabulaeformis plantations have been set up in four state-owned forest farms and some townships in the country. 27ha of Pinus tabulaeformis and 83ha of mother trees have been established. The Pinus tabulaeformis forest has entered into the timber forest period and the mother trees and seed orchards have started to bear fruit.