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Water use and carbon balance dynamics of cloud forest woody species

Grant number: 13/19555-2
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): November 01, 2013
Effective date (End): July 31, 2016
Field of knowledge:Biological Sciences - Ecology
Cooperation agreement: Microsoft Research
Principal researcher:Rafael Silva Oliveira
Grantee:Cleiton Breder Eller
Home Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Company:Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia (IB)
Associated research grant:11/52072-0 - Soil-plant-atmosphere interactions in a changing tropical landscape, AP.PITE

Abstract

Frequent fog events are one of the main climatic characteristics of Tropical Montane Cloud Forests (TMCF). Several studies have already shown that fog plays an important hydrological role on these ecosystems, and the decrease in the amount of fog events caused by climatic changes can be an important threat to TMCF integrity. Additionally, forest fragmentation, i.e. the conversion of forest areas into pastures and crop-plantations has reduced TMCF area in Earth's tropical belt and can potentially compromise the functioning of the remaining forest areas. We intend to investigate how changes in soil and atmospheric conditions caused by climatic variations (i.e. seasonal droughts and fog events) and forest fragmentation affect the functioning of TMCF vegetation in different spatial and temporal scales. We will use real time plant functioning monitoring techniques, such as sap flow measurements to estimate whole tree water use and automatic high-precision dendrometers to monitor carbon assimilation and allocation. These data will be combined with monthly measurements of ecophysiological parameters (leaf water potential and water use efficiency) and abiotic data (Solar radiation, rainfall, soil volumetric water content, atmospheric humidity and temperature, fog frequency, intensity and interception by the vegetation), which will be collected in real time with a network of micrometeorological sensors. All the data will be collected along a TMCF fragment adjacent to a pasture, so we will be able to understand the ecophysiological response of TMCF dominant tree species to climatic variation, land use change and the interaction between these factors. Our results should provide new insight about TMCF vegetation functioning and how these species might respond to climatic change that affects the water balance of these ecosystems. We also should provide an estimate of TMCF vegetation contribution to cloud water interception and how land-use change affects this important ecosystem service. (AU)

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Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ELLER, CLEITON B.; BARROS, FERNANDA DE V.; BITTENCOURT, PAULO R. L.; ROWLAND, LUCY; MENCUCCINI, MAURIZIO; OLIVEIRA, RAFAEL S. Xylem hydraulic safety and construction costs determine tropical tree growth. PLANT CELL AND ENVIRONMENT, v. 41, n. 3, p. 548-562, MAR 2018. Web of Science Citations: 9.
ELLER, CLEITON B.; OLIVEIRA, RAFAEL S. Effects of nitrogen availability on the competitive interactions between an invasive and a native grass from Brazilian cerrado. PLANT AND SOIL, v. 410, n. 1-2, p. 63-72, JAN 2017. Web of Science Citations: 4.
ELLER, CLEITON B.; LIMA, ALINE L.; OLIVEIRA, RAFAEL S. Cloud forest trees with higher foliar water uptake capacity and anisohydric behavior are more vulnerable to drought and climate change. NEW PHYTOLOGIST, v. 211, n. 2, p. 489-501, JUL 2016. Web of Science Citations: 27.
ELLER, CLEITON B.; BURGESS, STEPHEN S. O.; OLIVEIRA, RAFAEL S. Environmental controls in the water use patterns of a tropical cloud forest tree species, Drimys brasiliensis (Winteraceae). TREE PHYSIOLOGY, v. 35, n. 4, SI, p. 387-399, APR 2015. Web of Science Citations: 27.
OLIVEIRA, RAFAEL S.; GALVAO, HUGO C.; DE CAMPOS, MARIANA C. R.; ELLER, CLEITON B.; PEARSE, STUART J.; LAMBERS, HANS. Mineral nutrition of campos rupestres plant species on contrasting nutrient-impoverished soil types. NEW PHYTOLOGIST, v. 205, n. 3, p. 1183-1194, FEB 2015. Web of Science Citations: 50.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
. Efeitos de mudanças ambientais nas relações hídricas e de carbono de árvores de florestas nebulares. 2016. 102 f. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.