Land Degradation

[Guillermo Ortega Flores]

When I’m using the QGIS pluggin “trend.hearth”, what does mean “Productivity astate degradation”; “Productivity trajectory degradation”; “Productivity performance degradation” and which are the difference between each other?. I ask that because working in my country Nicaragua in my project the “Productivity performance degradation” shows me there isn’t degradation, while the others ones show me there are a significant degradation?