Save

Cambial phenology in Abies pindrow (Pinaceae) along an altitudinal gradient in northwestern Himalaya

In: IAWA Journal
Authors:
Rayees Malik Centre for Ecological Sciences, Indian Institute of Science, Bangalore, 560012, India

Search for other papers by Rayees Malik in
Current site
Google Scholar
PubMed
Close
,
Sergio Rossi University of Quebec in Chicoutimi, Département des Sciences Fondamentales, Laboratoire d’Écologie Végétale, 555, Boulevard de l’Université, Chicoutimi, QC, Canada G7H 2B1
Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, P.R. China

Search for other papers by Sergio Rossi in
Current site
Google Scholar
PubMed
Close
, and
Raman Sukumar Centre for Ecological Sciences, Indian Institute of Science, Bangalore, 560012, India
Divecha Centre for Climate Change (DCCC), Indian Institute of Science, Bangalore, 560012, India

Search for other papers by Raman Sukumar in
Current site
Google Scholar
PubMed
Close
Download Citation Get Permissions

Access options

Get access to the full article by using one of the access options below.

Institutional Login

Log in with Open Athens, Shibboleth, or your institutional credentials

Login via Institution

Purchase

Buy instant access (PDF download and unlimited online access):

$40.00

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 phenology 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 phenology in pindrow fir (Abies pindrow) along its altitudinal gradient in the Himalaya. The stages of xylem phenology, 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 phenology and help in better understanding of the potential impacts of climate change on tree growth and forest productivity of Himalayan forests.

Content Metrics

All Time Past 365 days Past 30 Days
Abstract Views 881 171 16
Full Text Views 38 2 0
PDF Views & Downloads 68 6 0