中国大陆森林线空间分布特征及其与多年冻土线、气候雪线的关系  

FEATURES OF SPACE DISTRIBUTION OF THE FOREST LINE AND RELATIONS BETWEEN THE FOREST LINE AND CLIMATIC LIMIT OF PERMAFROST AND CLIMATIC SNOWLINE IN CHINA

作　　者：蒋复初[1] 吴锡浩[1] 王书兵[1] 傅建利[1] 王燕[1] 赵志中[1] 

机构地区：[1]中国地质科学院地质力学研究所

出　　处：《地质力学学报》2004年第4期289-299,共11页Journal of Geomechanics

基　　金：国家重点基础研究发展规划项目(编号:G1999043401);国土资源部基础研究项目(编号:991005)成果。

摘　　要：在自然植被垂直带谱上一般以暗针叶林带的上限代表森林线,它的海拔高度取决于温度及其年较差。本文主要根据我国一些地区现代暗针叶林带上限的海拔高程和102个气象台站的气象资料,计算出我国的森林线的理论海拔高度,并编绘出我国的森林线高程等值线图以及多年冻土线与森林线高差等值线图和现代气候雪线与森林线高差等值线图。在此基础上研究了我国森林线的空间分布特征及其与多年冻土线、气候雪线的关系。The altitude of the forest line that is generally marked by the upper limit of the dark coniferous forest zone in the vertical zones of natural vegetation is controlled by the temperatures and their annual range.In this paper,based mainly on the heights above sea level of the upper limits of the modern dark coniferous forest zones in some mountainous regions and the climatic data obtained from 102 meteorological stations in China,the theoretic altitude of the forest line has been calculated and maps showing the altitude isolines of the forest line,the isolines of height differences between the permafrost limits and the forest line and the isolines of height differences between the modern climatic snowline and the forest line in China have been constructed respectively.On that basis,the primary features of spatial distribution of the forest line in China and its relations with the permafrost limits and climatic snowline are discussed.

关 键 词：气象台站 气候 气象资料 多年冻土 高程 空间分布特征 高差 林带 上限 基础 

分 类 号：P642.14[天文地球—工程地质学]