Tree-ring variation in teak (<Emphasis Type="Italic">Tectona grandis</Emphasis> L.) from Allapalli,Maharashtra in relation to moisture and Palmer Drought Severity Index,India |
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| Authors: | SOMARU RAM H P BORGAONKAR A A MUNOT A B SIKDER |
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| Institution: | (1) Tree-Ring Laboratory, Lamont-Doherty Earth Observatory, Room 108, 61 Route 9W, Palisades, NY 10964, USA;(2) Laboratory of Tropical Dendrochronology, Kasetsart University Faculty of Forestry, Bangkok, Thailand;(3) Department of Forest Management, Kasetsart University Faculty of Forestry, Bangkok, Thailand |
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| Abstract: | We developed a ring-width chronology of teak (Tectona grandis L.) from a moisture stressed area in Maharashtra, India. Bootstrapped correlation analysis indicated that moisture index
(MI) and Palmer Drought Severity Index (PDSI) showed better performance rather than same year rainfall over the region. Tree-ring
variations were most correlated positively with PDSI during different seasons compared with MI. Significant strong positive
correlation with MI, and negative association with temperature and potential evapotranspiration (PET) were found during previous
and current year post-monsoon (ON). This study shows that the moisture availability during the post-monsoon of the previous
year has a significant role in the development of annual growth rings. The reconstructed previous year post-monsoon (−ON)
moisture index for the period 1866–1996 indicates 3.5 and 29.3 years periodicities. |
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