Título
Pinus hartwegii Lindl. treeline ecotone: structure and altitudinal limits at Nevado de Toluca, Mexico
Pinus hartwegii Lindl. treeline ecotone: structure and altitudinal limits at Nevado de Toluca, Mexico
Autor
FARID URIEL ALFARO RAMIREZ
JOSE TULIO ARREDONDO MORENO
MARLIN PEREZ SUAREZ
ANGEL ROLANDO ENDARA AGRAMONT
Nivel de Acceso
true
Acceso Abierto
Materias
Agrociencias - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) Mountain - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) diameter classes - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) dendrometry - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) altitudinal gradient - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) forest patches - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) transition zone - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) Agrociencias - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) Mountain - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) diameter classes - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) dendrometry - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) altitudinal gradient - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) forest patches - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) transition zone - ([Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII]) CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA - (CTI)
Resumen o descripción
Introduction: Treeline ecotone complexity might function as a barrier to altitudinal migration of Pinus hartwegii Lindl. Objectives: P. h ar t we g ii forest structure was characterized through its treeline ecotone at Nevado de Toluca; in addition, possible changes in altitudinal limits over the last 25 years were determined. Materials and methods: Height and diameter at breast height (DBH) of each tree were determined, as well as natural forest regeneration and tree density. Altitudinal limits were determined on satellite images from 1989 and 2014 using the moving split window method. Results and discussion: Tree density fell between 8 and 70 % across altitudinal gradient. Altitudinal limits (3,980-4,130 m) did not show significant differences ( P = 0.07) between two evaluated years. The P. h ar t we g ii ecotone displays a diffuse form, regulated by growth limitations. This implies that the forest might modify its altitudinal distribution based on environmental changes, according to its ecological amplitude and how fast new individuals can become established at higher altitudes. Conclusion: Long-term monitoring is important to know if P . hartwegii is actually capable of migrating altitudinally as a result of increased environmental temperature.
Editor
Universidad Autónoma Chapingo
Fecha de publicación
2017
Tipo de publicación
Artículo
Recurso de información
Formato
application/application/pdf
Fuente
Revista Chapingo. Serie Ciencias Forestales y del Ambiente (México) Num.2 Vol.XXIII
Idioma
Inglés
Relación
http://www.redalyc.org/revista.oa?id=629
Audiencia
Estudiantes
Investigadores
Repositorio Orígen
REPOSITORIO INSTITUCIONAL DE LA UAEM
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