按照联合国的规定,荒漠化是指干旱区,像新疆,内蒙古西部,甘肃,这属于荒漠区、干旱区。内蒙古东部是半干旱区,以及干燥的亚湿润区,它是受到荒漠化威胁的气候范围。按气候条件来分析,北京年降水大概是500毫米左右,按照联合国的计算方式,北京属于干燥的亚湿润区。所以按气候来说,北京受到了荒漠化的影响。受到荒漠化的影响,并不是 According to the United Nations, desertification refers to arid areas like Xinjiang, western Inner Mongolia and Gansu, which are desert and arid areas. The eastern part of Inner Mongolia is a semi-arid zone and a dry sub-humid zone, which is a climate threatened by desertification. Analyzed by climatic conditions, annual precipitation in Beijing is about 500 millimeters. According to the UN calculation, Beijing belongs to a dry, sub-humid zone. So by climate, Beijing is affected by desertification. It is not affected by desertification