“…According to such methods, biophysical indicators directly related to ecosystem services are measured against ecosystem degradation (Daily, et al 1997;De Groot, et al 2010b;Van Oudenhoven, et al 2015b;Kim, et al 2016), and valuation must highlight the trade-offs among competing ecosystem services (Costanza, 2000;De Groot, et al 2010b;Howe, et al 2014) to find critical limits for maintaining each service under alternative management stages (Braat, et al 2008;De Groot, et al 2010a;Van Oudenhoven, et al 2012;Van Oudenhoven, et al 2015b). Based on such premises, we can indicate the point at which stress begins to affect a given service or when the optimal combination of services is reached (Haines-Young, & Potschin 2010;Deng, et al 2016).…”