Karstic ground subsidence, occurred in Huqiou-jiaoluo of Jiandou town, Anxi county, Fujian province, is a typical one caused by multi-factor.

• 发生在福建省安溪县剑斗镇湖丘角落的岩溶地面塌陷,具有典型的多因素致塌的特点。