【摘要】 本文收录了岐山县主要林区的啮齿类计16种,隶属于2目7科。在区系组成上古北界种类占明显优势(63％),东洋界仅占25％。主要害鼠有中华鼢鼠、大林姬鼠、中华林姬鼠等。受害树种以油松最严重,但随树龄增大而受害率减小。刺槐林一般未见鼠害。更多还原

【Abstract】 Describes 16 species of rodents belong to 7 families and 2 orders found in forest regions of Qishan,Shaanxi province. The Palaearctic species predominates (63%) and the Orieotal species occuqly only 25%. The major rodent are Myospalax fonianierii, Apodemus speciosus, and A.draco. Among tree species young, Chinese pines (P.tabulaeformis) were the most seriously harmed by rodents. But the damage decreases with tree age. No harm done was found in black locust (Robinia pseudoacacia) forest.更多还原