Data collection model
Variables like ecological zones, fragmentation of the forest, topography, local population and its livelihood, access and infrastructure are tied to the tract where plots are located and are part of it. Data on products and services are measured, estimated, or gathered from interviews or ocular observations from sub-plots (forest types and other land use classes) which are tied to the plot. In the case of use of aerial photography and delineation of land use classes over the whole tract, a number of resources management and use variables will be collected in the different classes found in the tract.
The tree characteristics as well as forest and TOF products/services with corresponding species and users are collected at sub-plot level corresponding to forest type or land use units in the sample plot within the tract.
Figure 5: Data collection concept
