外动力地质作用

RIS的诱发条件和因素十分复杂，其中有些与地壳的内动力地质作用有关，也有一些与地表的外动力地质作用关系密切。

The inducing conditions and factors of RIS are very complicated , some of which are connected with endogenic geological process of the crust , and others closely related to exogenic process .

洪灾是由洪水引发的，但洪水并不等于洪灾，由暴雨发展为洪水、洪灾是一种外动力地质作用过程。

Flood disaster is caused by floodwater , but floodwater is not equal to flood disaster . The form of flood disaster is an outer dynamic geological process .

输入系统包括内动力地质作用子系统、外动力地质作用子系统、地域环境子系统，输出系统包括成景地层子系统和旅游地学景观子系统。

The input sub-system includes the endogenic geological process and exogenic geological process subsystem , geographical environment subsystem . The output sub-system includes the stratum subsystem of scene formation and the tourism geosciences landscapes subsystem .