【作者】 武晓东； 付和平；

【Author】 WU Xiao-dong, FU He-ping (Ecological and Environmental College of Inner Mongolia Agricultural University, Hohhot 010019, China)

【机构】 内蒙古农业大学生态环境学院；

【摘要】 自1988～1993年和1998～1999年在内蒙古半荒漠和荒漠区的约38万km2区域内设置样地317个,用夹日法对鼠类群落进行调查。用每个样地主要鼠种的捕获率和样地构成分类量纲,应用SAS系统的快速聚类法进行分类,分类结果结合该区域地带性植被分布的特征和地貌、地形特征。将该区域的鼠类群落划分为9个地带性群落并研究其结构特征,同时根据地带性鼠类群落分布与结构特征及当地实际鼠害状况将内蒙古半荒漠与荒漠区鼠害划分为5大害区的8种危害类型。Ⅰ.荒漠与沙地危害区:①子午沙鼠、三趾跳鼠危害类型;②小毛足鼠、三趾跳鼠危害类型;Ⅱ.荒漠草原危害区:③戈壁五趾跳鼠、草原黄鼠危害类型;④戈壁五趾跳鼠、三趾跳鼠危害类型;Ⅲ.草原化荒漠危害区:⑤戈壁五趾跳鼠、长爪沙鼠危害类型;Ⅳ.阴山北麓旱作农田危害区:⑥长爪沙鼠、小毛足鼠危害类型;⑦小毛足鼠、黑线仓鼠危害类型;Ⅴ.阴山山脉中段山前草场与次生林地危害区:⑧草原黄鼠、大林姬鼠危害类型。同时从地带性鼠类群落分布与结构特征可以看出,该区域内由于人类干扰加重,在景观破碎化过程中,啮齿动物群落表现出的特点。更多还原

【Abstract】 The zone rodent communities were investigated used trap-night on the about 380 000 km2 area in semi-desert and desert region of Inner Mongolia, and 157 702 trap-nights on 317 sites were carried out from 1988 to 1993 and from 1988 to 1999. The raw data matrix was composed by main rodent kinds of sites and site numbers. Fast cluster method of SAS system was used and rodent communities were divided into 9 types with characteristic of topography and vegetation in the region. In accordance with characteristics of distribution and structure of the zone rodent communities, the semi-desert and desert region were divided into 8 rodent harmful types of 5 large harmful areas as follows: Ⅰ. Desert and sand rodent harmful area: (1) Meriones meridianus , Dipus sigitta harmful type, (2) Phodopus roborovskii, Dipus sagitta harmful type; Ⅱ . Desert steppe rodent harmful area: (3) Allactaga bullta , Citellus dauricus harmful type, (4) Allactaga bullta , Dipus sagitta harmful type; Ⅲ. Steppe-desert rodent harmful area: (5) Allactaga bullta, Meriones unguiculatus harmful type; Ⅳ. Dry farmland on the north parts of Yinshan mountain rodent harmful area. (6) Meriones unguiculatus and Phodopus roborovskii harmful type, (7) Phodopus roborovskii, Cricetulus barabensis harmful type; Ⅴ. Pasture on front of the mountains and secondary forest on the middle parts of Yinshan mountain rodent harmful area. (8) Citellus dauricus, Apodemus speciosus harmful type. At the same time, the characteristics of zone rodent communities that were due to mankind disturbance intension under landscape fragmentation were known by the characteristics of distribution and structure of the zone rodent communities.更多还原