Adaptability of a species to new territories is generally assessed by costly trial and error
in situ experiments distributed
throughout different agroclimatic environments. Nowadays climatic data are available to allow the construction of climatic
maps based on data provided through world or local networks of climatic weather stations. The objective of this work was
to establish a bioclimatic protocol, based on current and available sources of climate information, to make rapid surveys
of suitability for plant species in a given environment.
Moringa oleifera
Lam. species, native from India, was chosen
considering its rusticity and the increasing interest on this species due to its multiple uses, nutritional value, and medicinal
properties. The first phase of this work was a compilation of data from climatic downscaling (WorldClim), University of
East Anglia database (CRU), FAO database, and an historic datasets from Chilean meteorological stations. This information
was used to test two different models to compare bioclimatic profiles, considering relevant climatic variables for plant
adaptation: maximum and minimum temperatures, accumulated degree days, frost regime, and air humidity. The first
approach, based on climatic analogy, was to compare each of these variables between Chilean and foreign localities, and
the second, based on bioclimatic suitability, focus on the degree of meeting the minimum bioclimatic requirements by the
species in each locality. This paper provides some tools to make this kind of comparisons. Both approaches were tested
using
M. oleifera as target. Both approaches were complementary and prove to be useful for identifying potential areas
where the species could be cultivated. The use of these approaches suggested the existence of some bioclimatic suitability
for this species in the coastal areas with mild winters and frosts, from 27° to 37° S lat.
