Singh, N. Dhirendra ; Yadav, Ram R. ; Venugopal, N. ; Singh, Vikram ; Yadava, Akhilesh K. ; Misra, Krishna G. ; Singh, Thingbaijam B. ; Sanjita, Chongtham (2016) Climate control on ring width and intra-annual density fluctuations in Pinus kesiya growing in a sub-tropical forest of Manipur, Northeast India Trees: Structure and Function, 30 (5). pp. 1711-1721. ISSN 0931-1890
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Official URL: http://doi.org/10.1007/s00468-016-1402-9
Related URL: http://dx.doi.org/10.1007/s00468-016-1402-9
Abstract
The growth rings in khasi pine (Pinus kesiya Royle ex Gordon) growing in sub-tropical Reserve Forest in Imphal, Manipur, northeast India were analysed to understand environmental signals present in ring-width series and intra-annual density fluctuations (IADFs). For this the growth ring sequences in increment core samples collected from 28 trees were precisely dated and a ringwidth chronology spanning AD 1958–2014 developed. The correlation analyses between ring-width chronology and weather data of Imphal revealed that a cool April– May–June favour tree growth. The wood anatomical features of growth rings revealed the occurrence of IADFs in early- and latewoods. The IADFs in earlywood were found to be associated with reduced precipitation in months from April to July. However, the wetter conditions in late growing season, especially August/September triggered the formation of IADFs in latewood. Our findings endorse that the IADF chronologies of khasi pine could emerge as an important proxy of summer monsoon rainfall in long-term perspective in data scarce region of northeast India.
Item Type: | Article |
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Source: | Copyright of this article belongs to Springer Nature Limited. |
ID Code: | 135633 |
Deposited On: | 14 Jul 2023 10:23 |
Last Modified: | 14 Jul 2023 10:23 |
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