南水北调西线工程对黄河中上游地区的生态经济社会的预计效应
雒天峰, 陈克恭

Estinated eco-economic and social effects of the West Route of the South-to-North Water Transfer Project to the upper-mid reaches of the Yellow River
Tianfeng Luo, Kegong Chen
图5 中国陆地10 m高程多年平均风能年可用时数19
Fig.5 The distribution of annual available hours of average wind energy at an elevation of 10 meters for many years in China19