Alnus acuminata dendrochronology in the San Pedro de Saño private forest, Huancayo
Abstract
The objective is to evaluate the Alnus acuminate potential for its later use in dendroclimatological studies. The research analyses the width tree-ring chronology for an A forest. “acuminate” in San Pedro de Saño and it was related the trees growth with the instrumental records of average, maximum and minimum temperature, precipitation and sunshine hours of the Huayao Weather Stations (12° 02’ 18.1¨ S - 75° 19’ 22.2¨ O) and Santa Ana (12° 00’ 15¨ S - 75° 13’ 15¨ O). The width ring chronology is composed of 33 sets of 22 trees and covered the 1968-2013 period. The trees growth was negatively related to the minimum monthly temperature of April this year. It was observed a positive and significant relationship between the growth timing and the Santa Ana station precipitation for March of the previous year and December of the current growth year. The April monthly sunshine hours of current year are significantly correlated with the radial growth. There is a precipitation influence of the previous summer and spring of the current year favoring the trees growth. The tree enters in dormancy, possibly due to the fall low temperatures. The wide range of distribution and the historic use of its wooden buildings in the past, opens the possibility to temporarily extend the dendrochronological records in the central Andes of Peru.
References
1. Fritts HC. Tree-ring and climate. London: Academic Press; 1976.
2. Worbes M. One hundred years of tree ring research in the tropics. - A brief history and an outlook to future challenges. Dendrochronologia. 2002; 20(1-2): 217-231.
3. Villalba R, Grau HR, Bonisegna J, et al. Climatic variations in subtropical South America inferred from upper-elevation tree-ring records. International Journal of Climatology. 1998; 18(13): 1463-1478.
4. Instituto Geofísico del Perú. Atlas Climático de precipitación y temperatura del aire de la Cuenca del Río Mantaro. Lima: CONAM / IGP; 2005.
5. Killen TJ, Garcia E, Beck S. Guía de Arboles de Bolivia. Bolivia: Herbario de Bolivia and Missouri Botanical Garden; 1993.
Morales M, Villalba R, Grau R, et al. Rainfallcontrolled tree growth in high elevation subtropical treelines. Ecology. 2004; 85(11): 3080–3089.
7. Administración Local de Agua - Mantaro. Evaluación de los recursos hídricos superficiales en la cuenca río Mantaro. Lima; 2010. Disponible en: http://www.ana.gob.pe/sites/default/files/publication/files/evaluacion_rh_superficiales_rio_mantaro_0.pdf
8. Villanueva J, Cerano J, Constante V, et al. Muestreo Dendrocronológico: colecta, preparación y procesamiento de núcleos de crecimiento y secciones transversales. Durango: Grupo Colorama; 2009.
9. Argollo M, Solíz C, Villalba R. Potencialidad dendrocronológica de Polylepis tarapacana en los Andes centrales de Bolivia. Ecologia en Boliviana. 2004; 39(1): 5-24.
10. Schulman E. Dendroclimatic changes in semiarid America. Tucson: University of Arizona Press; 1956.
11. Stokes MA, Smiley TL. An introduction to tree-ring dating. Chicago: University of Chicago Press; 1968.
12. Holmes RL. Computer-assisted quality control in tree-ring dating and measurement. Tree-Ring Bulletin. 1983; 43: 69-75.
13. Cook ER. A time series analysis approach to treering standardization. [Tesis doctoral]. Tucson: The University of Arizona; 1985.
14. Blasing TJ, Solomón AM, Duvick DN. Response functions revisited. Tree-Ring Bulletin. 1984; 44: 1-15.
15. Briffa KR. Interpreting High-Resolution Proxy Climate Data – The Example of Dendroclimatology. In: Storch V, Navarra HA, editors. Analysis of Climate Variability, Applications of Statistical Techniques. Berlin: Springer; 1995.
16. López L. Villalba R. Climate Influences on the Radial Growth of Centrolobium microchaete, a valuable Timber Species from the Tropical Dry Forests in Bolivia. Biotropica. 2011; 43(1): 41-49.
17. Pereyra M, Inga G, Morales M, et al. Potencialidad de Cedrela odorata (Meliaceae) para estudios dendrocronológicos en la selva central del Perú. Biotropica. 2014; 62(2): 783-793.
18. Grau HR, Easlade TA, Paolini L. Subtropical dendroecology - dating disturbances and forest dinamics in northwestern Argentine montane ecosystems. Forest Ecology Management. 2003; 177: 131-143.
19. Moya J. & Lara A. Cronologías de ancho de anillos de queñoa (Polylepis tarapacana) para los últimos 500 años en el Altiplano de la región de Arica y Parinacota, Chile. Bosque. 2011; 32(2): 165-173.
20. Morales M, Christie DA, Villalba R, et al. Precipitation changes in the South American Altiplano since 1300AD reconstructed by treerings. Climate of the Past. 2012; 8: 653-666.
21. Boninsegma JA, Argollo J, Aravena JC, et al. Dendroclimatological reconstructions in South America: A review. Palaegeography, Paleoclimatology, Palaeoecology. 2009; 281:210-228.
