Data from: Biodiversity in agroforestry systems implemented in tropical ecoregions: A systematic review

This is a dataset containing extensive information on agroforestry systems
(AFSs) and reference vegetation areas where the diversity of taxonomic
groups or growth forms was measured. AFSs and their reference areas are
located in tropical ecoregions across de globe, and data were gathered
through a systematic review including 92 papers and 294 data sampling
sites. We considered each taxonomic group or growth form studied in a
sampling site (AFS or reference vegetation area) as an observation, and
extracted the following information to the file “Main_data.csv”: location,
ecoregion, climate, soil, size, method of biodiversity sampling, and
number of species, individuals, and/or biodiversity index found in each
AFS and reference area; origin (whether the AFS originated from areas with
alternative land use, such as agriculture, pastures, or degraded areas, or
in areas with natural vegetation that are converted into productive
systems), type (simple or biodiverse), age, crop type, management
strategy, presence of nearby natural vegetation areas, distance to nearby
natural vegetation areas, type of nearby vegetation, and predominant
matrix around each AFS; vegetation type and age of each reference area,
and characterization of the forest (primary or secondary, and regeneration
stage) in reference areas with forest as the vegetation type; mean
diameter at breast height, basal area, canopy cover, number of
regenerating tree species or individuals, number of pioneer and
non-pioneer tree species, and number of invasive plant species in
observations of the tree community in AFSs and reference vegetation areas.
The “Main_data.csv” file contains 470 observations. The complete
references included in the systematic review can be found in the file
“RefID.csv” and the full ecoregion names are presented in
“Ecoregion_Olson.csv”.