油松树轮记录的1776年以来贺兰山地区气温变化

蔡秋芳,刘禹

Temperature Variability since 1776 Inferred from Tree-rings of Pinus tabulaeformis in Mt. Helan

CAI Qiufang,LIU Yu

地理学报 . 2006, (9): 929 -936 . DOI: 10.11821/xb200609004