黄龙洞沉积的环境意义及旅游开发评价

A Study on the Sedimentary Environment of Huanglong Cave and the Evaluation of It's Tourism Exploitation

对洞穴沉积物岩性进行分层描述 ,并取样进行了 C1 4、热释光及孢粉鉴定 ,确定沉积物时代为距今 1 4630± 1 90年～ 85 5 0± 75年 .岩性和孢粉组合特征显示洞内沉积经历了暖湿、温干、暖湿、再到温干的气候变迁 ,其生态环境属于稀树草原型 .通过与本区域周边地区 (临汾盆地、北京平原地区 )孢粉组合对比 ,判断黄龙洞所在太原盆地北部山区气候、生态环境及其变化趋势与我国北方地区大体是同步的 ,同时也存在一定差异 .

On the basis of the description and analyses to the sediments, the period of them are defined. The process of environment transition are certificated that the environment belonged to grassland with a few threes. Through comparing with the nearby areas such as Linfen and Peking basin, a conclusion that the climate in the mountains on the north of Taiyuan basin has been approximately simultaneous with the most areas of North China. At the same time, the cave's value of exploitation for tourism is evaluated.