@article{Liu Xiaoyun:20, author = {[Liu Xiaoyun, Zhang Hongli, Zhang Qiang]}, title = {Study on the Main Factors of Aridity in Hetao Area of North China}, publisher = {Climate Change Research}, year = {2016}, journal = {Advances in Climate Change Research}, volume = {12}, number = {1}, eid = {20}, pages = {20-27}, keywords = {

Penman-Monteith model; aridity index; summer monsoon; climatic warming

}, doi = http://www.climatechange.cn/EN/10.12006/j.issn.1673-1719.2015.080 }