注册

Leaching and Accumulation of in Farmland of the Loess Plateau in China

字体大小: 点赞 

摘要

Between 34 to 40°latitude N and 102 to 114°longitude E locates the loess layer, which is 50 to 150m in depth. With an average rainfall of 450mm largely in July, August, and September, most areas are suitable only for single-crop planting once a year despite the fact that it is the biggest area for a