Spatial and Temporal Variability Characteristics of Ultraviolet Radiation in Eco-regions of China from 1961 to 2000
HUANG Mei-ling, JIANG Hong, ZHU Qiu-an, YU Shu-quan, ZHOU Guo-mo
SCIENTIA GEOGRAPHICA SINICA . 2009, (3): 391 -396 .  DOI: 10.13249/j.cnki.sgs.2009.03.391