“…Its requirements are particularly difficult to fulfill in a dynamic geography with earthquakes, typhoons, and torrential rains. The commonly used measurements in environment watershed performance are storm water level and improvement during catastrophes, urbanization of land and the monitored rate (Adhityawarma & Trauth, 2007;Byun, Myers, & Marengo, 2005;Chen, Lien, Yang, Tzeng, & Liang, 2008a;Chen, Lien, Tzeng, & Yang, 2008b, 2009aChen, Lien, Tzeng, Yang, & Yen, 2009b;Sara et al, 2000), forestation or vegetation in watersheds (Karibu et al, 2006), forest ecosystems, and environmental changes (Kohyama, Canadell, Ojima, & Pitelka, 2005), a storm water retrofit plan for the mimico creek watershed (Li & Banting, 1999). These measurements only represent a small portion of the scenario, with over 90% of the ''latent" events not reflected by them.…”