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北道区东南部分布着大面积天然林。有林地面积2,499,362亩(其中人工林400,435亩),森林蓄积量18,080,409立方米,分别由小陇山林业实验局的麦积、太碌、东岔、立远、党川、观音、百花、龙门等八个林场经营管理。本林区属温带落叶阔叶林带及北亚热带常绿阔叶、落叶混交林带。主要树种有油松、华山松、栓皮栎、辽东栎、白桦、山杨、漆树等,以阔叶落叶占优势的针阔混交林为主要林型。林下灌木、箭竹丛生,荒草遍及林内,林分卫生
Beidao District southeast part of the distribution of large areas of natural forest. There are 2,499,362 mu of forest land (including 400,435 mu of plantations) and 18,080,409 cubic meters of forest stock, which are respectively plotted and planted by Xiaolongshan Forestry Experimental Bureau of Maiji, Tailu, Dongcha, Liyuan, Dangchuan, Guanyin, Baihua, Longmen etc. Eight forest management. The forest area is temperate deciduous broad-leaved forest and northern subtropical evergreen broad-leaved, deciduous mixed forest belt. The main tree species are Pinus tabulaeformis, Pinus armandii, Quercus variabilis, Quercus liaotungensis, Betula platyphylla, Populus euphratica and Lacquer tree, with the coniferous and broad-leaved mixed forest dominated by broadleaf leaves as the main forest type. Undergrowth shrubs, arrow bamboo clumps, weeds throughout the forest, stand health