回复7楼:
96年前,黄泥雨可不常见,后来开始厉害了。时间点上完全符合蒙古草原沙漠化:
“Desertification
Desertification is defined as the process of fertile land becoming desert, and is characterized by loss of vegetation cover, increase of sand area, and drying-out of wetland areas.[3] At least 90% of Mongolia's pastureland has experienced some level of desertification.[2] Between 1996 and 2009 up to a third of rivers dried out or were impacted by drought conditions.[2] It has been found that desertification is predominantly (approximately 87%) caused by human factors rather than natural factors. These anthropogenic factors include overgrazing of livestock, erosion of farmland soils, burning, and climate change.[3”
中国政府应该全力帮助蒙古治理沙漠,光自己绿了不好使,大家都绿了才好。