西部退耕还林还草后鼠类群落改变的现状调查

An investigation on current status of rodent community transformation in restored forest from farmlands in western regions of China

对青海省大通县退耕还林还草地及周边农田鼠类群落组成进行调查研究,在退耕还林还草地共捕获鼠类6种728只,以根田鼠和高原鼢鼠为优势种;农田中共捕获各种鼠类3种75只,以长尾仓鼠为优势种。比较发现,退耕还林还草后,鼠类群落组成发生了明显的变化,与之相适应,鼠害治理应针对不同的鼠类种群和危害程度采取相应的控制措施。

The rodent community compositions were investigated both in the restored forest and grasslands and the surrounding farmlands at Datong County, Qinghai Province. A total of 728 individuals were captured during the research period, and 6 kinds of rodents were recorded in restored grasslands, and 75 individuals belonging to 3 species of mouse were captured in farmlands. The dominant species were analyzed in both rodent communities. The results showed that both Microtus oeconomus and Myospalax baileyi were absolutely dominant species in restored grasslands, whereas Cricetulus longicaudatus was the richest species in the farmlands. In comparison, obvious transformation has occurred in the rodent community composition of restored grasslands, thus effective control measures of rodent pests should be adopted there.