地理学报 ›› 1988, Vol. 43 ›› Issue (2): 108-119.doi: 10.11821/xb198802002

• 论文 • 上一篇    下一篇

中国季节积雪资源的初步评价

李培基   

  1. 中国科学院兰州冰川冻土研究所
  • 出版日期:1988-04-15 发布日期:1988-04-15

PRELIMINARY EVALUATION OF SEASONAL SNOW RESOURCES IN CHINA

Li Peiji   

  1. Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences
  • Online:1988-04-15 Published:1988-04-15

摘要: 本文根据2300余个地面气象台站从1951年(或建站)到1980年逐日积雪与降雪观测资料,计算出我国年平均降雪补给量为3451。8 X 108m3,冬季平均积雪贮量为535。6 X 108m3,阐明了季节雪资源的地理分布规律,季节分配特征和长期变化趋势。指出了CO2增温可能导致我国季节雪资源分布的区域分异倾向进一步加骤,引起北方土壤干旱化。三十年来,雪资源的波动是全球海气异常的结果。多雪冬天与厄尔尼诺南方涛动相同步。雪资源的两个正、负距平时期与我国农田受旱面积的两个明显的低高值时期基本吻合。长期变化趋势准确地反映出了全球气温变化过程,并与气温变化成正相关。

关键词: 季节积雪资源, 年降雪补给量, 冬季积雪贮量, 积雪资源地理分布, 积雪资源年内分配, 积雪资源变化趋势

Abstract: Based on data on daily depth and density of snowcover and snowfall recorded at more than 2300 weather stations of China from 1951 up to 1980, the snow resources have been evaluated and their secular variations have been clarified.

Key words: Seasonal snow resources, Annual snowfall recharge, Winter snowwater storage, Geographic distribution of snow resources, Month1y distribution of snow res-ources, Secular variations of snow resources