摘要
目的从根田鼠动物地理分布探讨西北地区气候演变及其特点。方法利用现代根田鼠的动物地理分布、地史分布及其生态习性进行分析。结果根田鼠M icrotus oeconomus是一种对环境敏感的喜冷喜湿的北方型动物,其现代分布与西北地区的气候特点密切相关。结论西北地区中晚更新世以来的气候环境日趋暖干,其总的特征为“盆干山湿,湿润区呈斑块状分布”。
Aim To discuss the climate character and tends in northwest of China. Methods The distribution and ecological environment of Microtus oeconomus were analyzed. Results The Microtus oeconomus is a climate-sensi- tive mammal, which highly adapted to a moist and cold climate and its distribution is closely related to the climate in northwestern China. Conclusion The climate tends to be dry and warm since Middle-late Pleistocene in Northwest of China, and the climate character is “the basin dry, the mountain humid, and the moist area in islandshape”.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第1期103-106,共4页
Journal of Northwest University（Natural Science Edition）
基金
陕西省自然科学基金资助项目(JK028
JK01)
关键词
根田鼠
分布变迁
环境气候演变
西北地区
中晚更新世以来
Microtus oeconomus
clistribution change and ecological environment
climate variations
northwest ofChina
since Middle-Late Pleistocene
