顶凌耙耱对经常春旱的内蒙古地区,几乎是年年需要的一项农业耕种措施。内蒙古地区为什么经常春旱?这主要是由大气环流所决定的。我国是季风气候十分显著的国家。在我国东面的太平洋上,存在着一个强大的暖性天气系统,叫做西太平洋副热带高气压。它的西端常伸入到我国大陆上空。西方和西南方经常有偏南气流,将海洋上的水汽带到大陆上来。它的北面是中纬度 In the Inner Mongolia region, where drought often occurs, there is a need for agricultural cultivation almost every year. Why does Inner Mongolia often spring drought? This is mainly determined by the atmospheric circulation. My country is a country with a significant monsoon climate. In the eastern Pacific to our country, there is a powerful warm weather system called the western Pacific subtropical high. Its western end often extends over the Chinese mainland. Western and southwesterlies often have a southerly airstream, bringing the water vapor on the ocean to the mainland. Its north is mid-latitude