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崩岗是我国南方特有的土壤侵蚀类型.主要分布在广东、福建、江西、湖南等省一些风化花岗岩侵蚀区(个别砂砾岩区亦有分布).我省花岗岩侵蚀区的崩岗分布范围较广,除韩江流域广为分布外,鉴江流域、东江上游、西江中上游、北江下游、海南岛及沿海部分丘陵地区均有分布.崩岗在我省有历史记载约140多年,德庆州志写道:“道光十八年夏大雨,金林山始崩”,“迩年砂阜大半推塔,田霾淤砂,不可耕作,民多逃亡,力食于粤西者万计”.上述记载,既说明了崩岗的发展历史,也说明了崩岗的危害程度.
Collapse is a type of soil erosion unique to southern China, mainly distributed in some weathered granite eroded areas in Guangdong, Fujian, Jiangxi and Hunan provinces (individual gravel areas are also distributed) , Except the Hanjiang River Basin is widely distributed, the Jianjiang River Basin, the upper reaches of the East River, the upper reaches of the West River, the lower reaches of the Beijiang River, Hainan Island and some parts of the coastal areas are distributed.Dump collapse in our province has a history of about 140 years, Deqing Prefecture Chi wrote: “In the summer of 18 years, Daoguang rains and the Jinlin Mountains began to collapse.” In recent years, most of the sands have been pushed into the tower and fields of haze and silt are not cultivated. Records, not only shows the history of the collapse of gang, but also shows the extent of the collapse Gang.