青藏铁路沿线1966-2004 年冻结与融化指数的变化趋势

姜逢清, 胡汝骥, 李珍

Variation Tr ends of the Freezing and Thawing Index along the Qinghai-Xizang Railway for the Per iod 1966-2004

JIANG Fengqing, HU Ruji, LI Zhen

地理学报 . 2007, (9): 935 -945 . DOI: 10.11821/xb200709005