MalikRossiSukumar2020

Reference

Malik, R., Rossi, S., Sukumar, R. (2020) Cambial phenology in Abies pindrow (Pinaceae) along an altitudinal gradient in northwestern Himalaya. IAWA Journal, 41(2):186-201.

Abstract

Climate change is expected to be heterogeneous across the world, with high impacts on the Himalayan ecosystems. There is a need to precisely document cambial phonology and wood formation in these regions to better understand climate-growth relationships and how trees face a warming climate. This study describes the dynamics of cambial phonology in pindrow fir (Abies pinthrnv) along its altitudinal gradient in the Himalaya. The stages of xylem phonology, and the duration and rate of wood formation were assessed from anatomical observations during the growing season from samples collected weekly from three sites at various altitudes (2392-2965 m a.s.l.) over two years. There were significant differences in the duration and rate of cell formation along the altitudinal gradient, which decreased at increasing altitudes. The growing season duration decreased by 5.2 and 3.7 days every 100 m of increase in altitude in 2014 and 2015, respectively, while the rate of cell formation decreased from 0.38 and 0.44 cells /day to 0.29 and 0.34 cells/day in 2014 and 2015, respectively. Cell production decreased from 63.3 and 67.0 cells to 38.3 and 45.2 cells with a decrease of 4.3 and 3.8 cells per 100 m increase in altitude in 2014 and 2015, respectively. The higher precipitation in 2015 increased the growth rate and resulted in a higher xylem production. Our findings give new insights into the dynamics of cambial phonology and help in better understanding of the potential impacts of climate change on tree growth and forest productivity of Himalayan forests.

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@ARTICLE { MalikRossiSukumar2020,
    AUTHOR = { Malik, R. and Rossi, S. and Sukumar, R. },
    TITLE = { Cambial phenology in Abies pindrow (Pinaceae) along an altitudinal gradient in northwestern Himalaya },
    JOURNAL = { IAWA Journal },
    YEAR = { 2020 },
    VOLUME = { 41 },
    NUMBER = { 2 },
    PAGES = { 186-201 },
    MONTH = { may },
    ISSN = { 0928-1541 },
    ABSTRACT = { Climate change is expected to be heterogeneous across the world, with high impacts on the Himalayan ecosystems. There is a need to precisely document cambial phonology and wood formation in these regions to better understand climate-growth relationships and how trees face a warming climate. This study describes the dynamics of cambial phonology in pindrow fir (Abies pinthrnv) along its altitudinal gradient in the Himalaya. The stages of xylem phonology, and the duration and rate of wood formation were assessed from anatomical observations during the growing season from samples collected weekly from three sites at various altitudes (2392-2965 m a.s.l.) over two years. There were significant differences in the duration and rate of cell formation along the altitudinal gradient, which decreased at increasing altitudes. The growing season duration decreased by 5.2 and 3.7 days every 100 m of increase in altitude in 2014 and 2015, respectively, while the rate of cell formation decreased from 0.38 and 0.44 cells /day to 0.29 and 0.34 cells/day in 2014 and 2015, respectively. Cell production decreased from 63.3 and 67.0 cells to 38.3 and 45.2 cells with a decrease of 4.3 and 3.8 cells per 100 m increase in altitude in 2014 and 2015, respectively. The higher precipitation in 2015 increased the growth rate and resulted in a higher xylem production. Our findings give new insights into the dynamics of cambial phonology and help in better understanding of the potential impacts of climate change on tree growth and forest productivity of Himalayan forests. },
    DOI = { 10.1163/22941932-bja10007 },
    EISSN = { 2294-1932 },
    UNIQUE-ID = { ISI:000533515600004 },
}

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