2021
DOI: 10.3832/ifor3532-014
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Intra-annual tree growth responds to micrometeorological variability in the central Amazon

Abstract: Intra-annual distribution of precipitation in central Amazonia leads to a short mild dry season, which is associated with an increase in irradiance and temperature and a decline in relative humidity; however, the independent effect of each individual climatic variable on tree growth is still under investigation. The objective of this study was to determine how tree growth (inferred from radial stem increment) responds to monthly variations of micrometeorological variables in the central Amazon. During five yea… Show more

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Cited by 6 publications
(9 citation statements)
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“…1). (Méndez 2018;Yang et al 2018;Antezana-Vera and Marenco 2021), so the effect of the environmental conditions on tree growth depends on the climatic conditions during the growing period, in particular the frequency and intensity of precipitation, which can change substantially over time (Ciemer et al 2019).…”
Section: Discussionmentioning
confidence: 99%
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“…1). (Méndez 2018;Yang et al 2018;Antezana-Vera and Marenco 2021), so the effect of the environmental conditions on tree growth depends on the climatic conditions during the growing period, in particular the frequency and intensity of precipitation, which can change substantially over time (Ciemer et al 2019).…”
Section: Discussionmentioning
confidence: 99%
“…The climate in the region is tropical humid, with mean annual rainfall of 2,420 mm and a mild dry season from June through October, and, within this period, July, August and September are the driest months (< 100 mm per month, INMET 2021). The mean annual temperature is about 26 o C (Dias and Marenco 2016;Antezana-Vera and Marenco 2021). The vegetation is classified as dense terrafirme rainforest, and the soil is an Oxisol with low fertility, clay texture, and pH of 4.2 to 4.5 (Magalhães et al 2014).…”
Section: Study Area and Microclimatic Variablesmentioning
confidence: 99%
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“…Mean annual temperature is about 26 o C Marenco, 2016;Marenco, 2021b). The vegetation is classified as dense terra-firme forest, and the soil is an Oxisol with low fertility, clay texture, and pH (in water) of 3.9-4.0 (Magalhães et al, 2014).…”
Section: Study Area and Plant Materialsmentioning
confidence: 99%
“…It seems that the effect of climatic variability on tree growth in the central Amazon depends on the length of the dry season, as during prolonged droughts (such as that of 2015-2016) climatic parameters that increase in the dry season (e.g. irradiance, vapor pressure deficit) seem to have a negative effect on tree growth and ecosystem photosynthesis (YANG et al, 2018, ANTEZANA-VERA;MARENCO, 2021b). Other factors also affect tree growth, including site quality (e.g., soil fertility and topography), ontogeny -tree size (BOWMAN et al, 2013) andcompetition (VATRAZ et al, 2018).…”
Section: Introductionmentioning
confidence: 99%