数字山地垂直带谱研究进展

Progress in the Study on Digital Mountain Altitudinal Belts

垂直分带是山地环境研究的基础。近年来我们成功地构了山地垂直带数据模型,可以将我国及全世界山地垂直带谱进行数字集成;归纳出我国31个水平地带、32个垂直地带,奠定了中国山地垂直带谱数字集成的地理学基础。研制了中国山地垂直带谱信息系统并进行了升级;提出了山地垂直带分布的二次曲线模式,需要今后用更多的数据进一步验证;未来几年的工作包括提高山地垂直带的识别精度,并将山地垂直带谱数字集成工作扩展到欧亚大陆甚至全世界。

Vertical environmental gradient is 1 000 times as high as that in the horizontal direction. Altitudinal zonation is actually of the uttermost importance in the study of mountain environment. In recent years, we have successfully developed a data model for mountain altitudinal belts, which can be used to integrate all altitudinal belts in China and in the whole world. We have generalized 31 physico-geographical zones and 32 altitudinal belts for China, which acts as the geographical basis to digitally integrate China＇ s altitudinal belts. A mountain altitudinal belt information system has been developed and upgraded. A quadratic model for altitudinal belt distribution on the continental scale has been proposed, which, of course, needs to be improved with more data. Our research in the coming years will be concentrated on improving the accuracy in identifying altitudinal belts and on extending the work to the whole Eurasian continent or even the world.