Subtropical dendroecology—dating disturbances and forest dynamics in northwestern Argentina montane ecosystems

Grau, H. Ricardo; Easdale, Tomás A.; Paolini, Leonardo

doi:10.1016/s0378-1127(02)00316-x

Cited by 51 publications

(45 citation statements)

References 36 publications

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“…Tree-ring analysis has been used to obtain insight into canopy disturbance, lifetime growth patterns and historical growth rates of trees in temperate forests (Landis and Peart 2005;Lorimer and Frelich 1989;Lusk and Smith 1998). Seasonal radial growth and annual ring development have been confirmed in some tropical and subtropical tree species (Schongart et al 2006;Grau et al 2003;Fichtler et al 2003;Worbes 1995;Worbes and Junk 1989). To date, most tree-ring research in China focuses on reconstruction of past climate or tree-line dynamics in arid and semiarid areas of western China (Li et al 2008;Wang et al 2006;Liu et al 2004;Zhang et al 2003), whereas much less studies have been carried out on subtropical trees.…”

Section: Introductionmentioning

confidence: 99%

Age and radial growth pattern of four tree species in a subtropical forest of China

Xing

Zhang

Baker

2011

Trees

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Subtropical forests are usually composed of many tree species. Knowledge of the age and radial growth variation of the dominant tree species is useful for understanding forest dynamics and community structure and function. The aims of this study are to explore whether there are identifiable annual growth rings in the main tree species and to examine the growth characteristics within and among the species in Mount Gutian subtropical forest of China. The results showed that four out of eight tree species from which samples were collected had visible and cross-datable rings. There were no stable relationships between the age and diameter for these subtropical trees. Significant differences existed in radial growth rate within and among the four species, suggesting a high spatial heterogeneity in the mixed-species subtropical forest. The common pattern in age distribution of multiple species suggests a stand-wide disturbance occurring around the 1960s. It is interesting to note that the growth rate at the same age intervals was different for trees younger than 40 years of age and older than 40 years of age, suggesting a change in climate or forest structure in the two time periods. The results obtained from this study help understand the growth dynamics in other subtropical forests having these tree species.

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Section: Introductionmentioning

confidence: 99%

Age and radial growth pattern of four tree species in a subtropical forest of China

Xing

Zhang

Baker

2011

Trees

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“…However, few studies exist in the subtropics (Grau et al 2003) and the task of obtaining accurate tree ages is not easy. During the last two decades several studies have attempted to improve the accuracy of tree age estimation, but all involved techniques such as extraction of increment cores or entire cross-sections (Norton et al 1987;Villalba and Veblen 1997;Wong and Lertzman 2001;Gustell and Johnson 2002;Rozas 2003).…”

Section: Introductionmentioning

confidence: 99%

Age–size–habitat relationships for Polylepis australis: dealing with endangered forest ecosystems

et al. 2008

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Assessing tree ages is important for the understanding of forest recruitment patterns and tree growth. However, little experience exists in the subtropics and accurate aging usually involves potentially damaging techniques such as tree coring or even the use of entire cross sections, which is not recommendable in endangered species or ecosystems. We provide an example of how age may be predicted on the basis of tree size and site conditions, using Polylepis australis of Central Argentina. Our study was conducted in two entire river basins where 96 independent trees were successfully cored for age analysis. Site and tree characteristics were registered and tree age determined through standard dendrochronological techniques. The multiple regression procedure selected tree circumference and proportion of rock under the tree canopy as signiWcant variables explaining 48% of the variation in number of growth rings. Trees surrounded by rock clearly grew slower than those surrounded by a higher proportion of soil and vegetation. A comparison with a one site study shows that the ability to predict P. australis age is clearly reduced when geographical range is extended but the explanatory power of our model is still high enough for certain applications and within the range of other one site studies. We suggest that tree size and site characteristics may be used to predict age in other subtropical mountain forests with a well marked growth season.

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“…Yungas en el nor oeste de Argentina (18). A pesar de la corta escala temporal de la cronología de ancho de anillos para San Pedro de Saño, se puede aplicar la dendroecología para estudios de dinámica de bosques de A. acuminata.…”

Section: Discussionunclassified

Dendrocronología de Alnus acuminata en el bosque reservado de San pedro de Saño, Huancayo

Requena-Rojas

2015

Apunt. cienc. soc.

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Subtropical dendroecology—dating disturbances and forest dynamics in northwestern Argentina montane ecosystems

Cited by 51 publications

References 36 publications

Age and radial growth pattern of four tree species in a subtropical forest of China

Age and radial growth pattern of four tree species in a subtropical forest of China

Age–size–habitat relationships for Polylepis australis: dealing with endangered forest ecosystems

Dendrocronología de Alnus acuminata en el bosque reservado de San pedro de Saño, Huancayo

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