近50年中国北方土壤湿度的区域演变特征

郭维栋,马柱国,姚永红

Regional Characteristics of Soil Moisture Evolution in Northern China over Recent 50 Years

GUO Weidong, MA Zhuguo, YAO Yonghong

地理学报 . 2003, (7s): 83 -90 . DOI: 10.11821/xb20037s010