摘要
气候作为生态系统的环境因素之一,对生态系统的演化常常起着决定性的影响作用。文章通过分析内蒙古大兴安岭北部至阿拉善盟两部的气候变化特点,指出由于长期自然选择的结果,在各个气候带都形成了一套与当地自然环境相适应的生态系统。表现为土壤、动物和植物分布特征的显著差异。
The climate often plays decisive influence function on the evolution of the ecosystcm as one of the environmental factors of the ecosystem. This text analyses the climatic charlge characteristic from north of Daxing' an Mountains range of the Inner Mongolia to west of Alashan League, and points out that a set of ecosystems which conform with natural environment in the locality on each climatic zone has been formed because of the result of the long-term natural selection, which has been shown as the soil, animal and plant had remarkable difference of distributing the characteristic.
出处
《华北农学报》
CSCD
北大核心
2004年第F12期69-73,共5页
Acta Agriculturae Boreali-Sinica
基金
内蒙古气象局资助项目(200304)
关键词
气候
生态系统
自然选择
Climate
Ecosystem
Natural selection