Climatic response of Pinus cembroides Zucc. radial growth in Sierra del Cubo, Guanajuato, Mexico
Por:
Carlon Allende, Teodoro, Mendoza, Manuel E., Villanueva Diaz, Jose, Li, Yanmei
Publicada:
1 oct 2018
Resumen:
Studies of forest growth under induced climatic variations allow
estimating the intensity of impacts on forest ecosystems and
understanding them. In the present study, the climatic response of Pinus
cembroides radial increase was evaluated based on precipitation and
average temperature (maximum, minimum and mean temperature). The study
was carried out in Sierra del Cubo, Guanajuato, in the upper course of
the Laja River. A correlation response function analysis was used to
evaluate P. cembroides growth in response to climatic factors.
Correlation analysis indicates that P. cembroides growth is positively
associated with precipitation of October and December of the previous
year, as well as with January-February, May-August and October of the
current-year precipitation. Regarding temperatures, the average minimum
temperature of the previous December and of January and May of the
current year favored P. cembroides growth. Mean and maximum average
temperature had a negative influence on annual radial growth. Response
function analysis indicates that P. cembroides response to precipitation
was quite unstable for the 1925-2011 period and possibly affected by
climatic anomalies recorded over the last decades. The main climatic
factors exerting a dominant effect on P. cembroides radial growth are,
first, the winter-spring seasonal rainfall and, second, the average
winter temperature. P. cembroides forests in Sierra del Cubo are highly
affected by environmental variables, and its habitat could decline if
winters tend to be drier and temperatures are higher as it is predicted
to occur by Intergovernmental Panel of Climate Change models.
Filiaciones:
Univ Nacl Autonoma Mexico, Unidad Michoacan, CONACYT Inst Geofis, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico
Univ Nacl Autonoma Mexico, Ctr Invest Geog Ambiental, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico
Univ British Columbia, Dept Geog, Vancouver Campus 1984 West Mall, Vancouver, BC V6T 1Z2, Canada
Ctr Nacl Invest Disciplinaria Relac Agua Suelo Pl, Lab Dendrocronol, Inst Nacl Invest Forestales Agr & Pecuarias, Km 6-5 Margen Derecha Canal Sacramento, Gomez Palacio 35140, Durango, Mexico
Univ Guanajuato, Dept Ingn Minas Met & Geol, Div Ingn, Ex Hacienda San Matias S-N, Guanajuato 36020, Mexico
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