垂直地带性岩溶生态环境特征初探——以金佛山国家自然保护区为例

RESEARCH ON THE KARST ECOLOGICAL ENVIRONMENT OF VERTICAL ZONED REGION:A case study of Jinfo Mountain National Nature Reserve in Chongqing

由于特殊的地理环境,金佛山自然保护区的垂直地带性岩溶生态特征明显.通过研究发现,金佛山在不同海拔地质背景基础上,土壤、物种多样性和山上山下两种不同特征的岩溶动力系统.土壤分带性主要表现为:从山下向山顶依次为黄壤、暗黄壤、黄棕壤和棕壤.物种多样性主要表现为:植被种类繁多,动物类型复杂多样,是同类地区所罕见的,大大丰富了我国野生生物基因库.岩溶动力系统主要表现为:土壤CO2和水化学特征的差异显著,从而形成了山上山下两个不同特征的岩溶动力系统,山下岩溶作用明显强于山顶.

Due to the special geographical situation, the characteristics for karst ecological environment of vertical zoned region in Jinfo Mountain are very distinct. Based on the geological background of different altitude, the mountain shows vertically zoned characters, such as the distribution of soil, the diversity of biology, and the difference of karst dynamic systems. From the foot to the top of Jinfo Mountain, the soils appear as yellow soil, dark yellow soil, yellow brown soil and brown soil. There exist abundant type of animal and vegetation, which are rarely seen in similar kind of areas and enlarge the gene bank of wild biology. Owing to the difference of CO concentration and hydro-chemical characteristics at different altitudes, the karst processes in the foot part is stronger than those in the top of the Jinfo Mountain.