结果表明，两种产流预报模型均可用于北方半湿润半干旱地区。
The result indicates that two runoff producing forecast models are all suitable in north semi-moisture semi-aridity region.
沙漠化是干旱、半干旱及部分半湿润地区由于人地关系不相协调所造成的以风沙活动为主要标志的土地退化。
The aeolian desertification is a land degradation characterized by wind erosion mainly resulted from the excessive human activities in arid, semiarid and part of sub-humid regions in Northern Chian.
应用推荐