1 林业饲料资源概况陕西森林资源丰富,有乔灌木约1100余种。全省有林地579.9万 ha,其中天然林占73.3%,主要分布在秦岭、巴山、关山、桥山和黄龙山五大林区;人工林占26.7%,主要分布在渭河以北及秦巴浅山地区。此外,有“四旁”零星树木约4.9亿株,遍及全省,尤以平源、川道地区较多。树木种类虽千差万别,但大都含有动物 1 Overview of forestry feed resources Shaanxi forest rich in resources, there are about 1,100 species of shrubs. The province has 5,799,000 ha of forest land, of which natural forest accounts for 73.3%, mainly distributed in the five major forest areas of Qinling, Bashan, Guanshan, Qiaoshan and Huanglongshan; the plantation accounts for 26.7%, mainly distributed in the area north of the Weihe River and Qinba Mountain area . In addition, there are about 490 million sporadic trees around the province, especially in Pingyuan and Chuandao areas. Although the types of trees vary widely, but most contain animals