Trees Lose Their Leaves Later in Agroforestry Systems

DOI: 10.22161/ijeab/2.2.38

Keyword: Cordia oncocalyx, tree density, gas exchange, semiarid, secondary forest.

Abstract: In Brazilianagroforestry systems (AFS), Cordia oncocalyx trees, a native species of Caatinga, lose their leaves late in relation to the trees of the same species occurring in secondary forest. Our hypothesis is that, due to environmental features, the trees of the AFS maintain better water status. This work aims to present environmental humidity (rainfall, soil moisture and air relative humidity) and trees (photosynthesis, stomatal conductance and transpiration) data to explain the late loss of leaves in anagrosilvopastoral system (AGP) in the Brazilian semiarid region compared to a secondary forest (SF).Meteorological data were obtained from two weather stations installed in the AGP and SF areas. The physiological traits were measured using an infrared gas analyzer. There was a correlation between physiological processes (transpiration and stomatal conductance) and soil water content in plants of AGP, but not in SF, showing some independence of the plants of this system to variations in soil moisture. This indicates that AGP plants may have developed the physiological and anatomical features that enable to them to keep photosynthesis even when climatic conditions are more severe. Although the most inhospitable environmental conditions in the AGP system, the lower density of plants, and therefore less competition for water, favoring photosynthesis longer, causing the leaves to fall later.

Total View: 1832

Downloads: 695

Page No: 0855-0863

Cite this Article:

Marlete Moreira Mendes Ivanov, Claudivan Feitosa de Lacerda, Teogenes Senna de Oliveira et al."Trees Lose Their Leaves Later in Agroforestry Systems". International Journal of Environment Agriculture and Biotechnology(ISSN: 2456-1878),vol 2, no. 2, 2017, pp.0855-0863 AI Publications doi:10.22161/ijeab/2.2.38

Marlete Moreira Mendes Ivanov, Claudivan Feitosa de Lacerda, Teogenes Senna de Oliveira, P.(2017).Trees Lose Their Leaves Later in Agroforestry Systems. International Journal of Environment Agriculture and Biotechnology(ISSN: 2456-1878).2(2), 0855-0863.10.22161/ijeab/2.2.38

Marlete Moreira Mendes Ivanov, Claudivan Feitosa de Lacerda, Teogenes Senna de Oliveira, P.(2017).Trees Lose Their Leaves Later in Agroforestry Systems. International Journal of Environment Agriculture and Biotechnology(ISSN: 2456-1878).2(2), pp.0855-0863.

Marlete Moreira Mendes Ivanov, Claudivan Feitosa de Lacerda, Teogenes Senna de Oliveira. 2017."Trees Lose Their Leaves Later in Agroforestry Systems". International Journal of Environment Agriculture and Biotechnology(ISSN: 2456-1878).2(2):0855-0863.Doi:10.22161/ijeab/2.2.38

Marlete Moreira Mendes Ivanov, Claudivan Feitosa de Lacerda, Teogenes Senna de Oliveira."Trees Lose Their Leaves Later in Agroforestry Systems", International Journal of Environment Agriculture and Biotechnology,vol.2,no. 2, pp.0855-0863,2017.

@article { marletemoreiramendesivanov2017trees,
title={Trees Lose Their Leaves Later in Agroforestry Systems},
author={Marlete Moreira Mendes Ivanov, Claudivan Feitosa de Lacerda, Teogenes Senna de Oliveira , R},
journal={International Journal of Environment Agriculture and Biotechnology},
volume={2},
year= {2017} ,
}