Tree rings of Keteleeria evelyniana based temperature reconstruction for Da Lat city, Lam Dong province
Keywords:
Keteleeria evelyniana,, tree ring width, reconstruted temperature, ENSOAbstract
Using the tree rings of Keteleeria evelyniana Masters, the February’s
temperature of Lam Dong province were reconstructed for the past 233
years (1779 - 2007) and the relationship between the Du sam’s tree ring
index with ENSO phenomenon in the central highland of Vietnam from
1950 - 2000 was examined. The results indicated that Du sam growth was
divided into many different growth periods such as 1865 - 1870; 1884 -1890 and 1907 - 1916. Furthermore, February’s temperature of Da Lat
city was reconstructed for the past 233 years. The reconstruction could
explain 29% of temperature variation during the period 1979 - 2007.
Moreover, that the change of temperature in the year that ENSO happened
affected the tree ring growth. Particularly, the tree ring growth would be
decreased in the years that El Nino happened and increased in the years
that La Nina occurred
References
1. Buckley M.B, 2009. Decadal scale droughts over northwestern Thailand over the past 448 years: links to the tropical Pacific and Indian Ocean sectors. Clim Dyn, DOI 10.1007/s00382 - 007 - 0225 - 1.
2. Cook E. D, 1985. A time series analysis approach to Tree ring standardization
3. Fritts, H. C, 1971. Dendroclimatology and Dendroecology. Quaternary Res.1(4), page 419 - 449.
4. Henri D., Mayer G., 2001: Evaluating crossdating accuracy: A manual and tutorial for the computer program COFECHA, tree - ring research, Vol 75(2): 205 - 221
5. Nguyễn Văn Thiết, 2012. nh hưởng của khí hậu đến tăng trưởng của Du sam (Keteleeria evelyniana Masters) ở VQG Bidoup Núi Bà, tỉnh Lâm Đồng. Luận văn Thạc s Khoa học Nông nghiệp, Đại học Nông Lâm T . Hồ Chí Minh. 71 trang.
6. Nguyễn Đức Tố Lưu . Thomas, 200 . Thông Việt Nam, NXB Thế giới, Hà Nội.
7. Nguyễn Hoàng Ngh a, 200 . Các loài cây lá kim ở Việt Nam, Nhà xuất bản Nông nghiệp, Hà Nội.
8. Sano M., Buckley B. M. and Sweda T., 2008. Tree - ring based hydroclimate reconstruction over n orthern
Vietnam from Fokienia hodginsii: eighteenth century mega - drought and tropical Pacific influence. Clim Dyn,
DOI 10.1007/s00382 - 008 - 0454 - y.
Le Thi Xuan Lan, 2009. The impacts of ENSO to weather - climate of South Vietnam. International PAGES
Workshop on Climate Variability in the Greater Mekong River Basin. Dalat City, February 16 - 18.
Larson P.R., 1964. Some indirect effects of environment in wood formation. Academic NY, page 345 - 366.
Stokes and Smiley, 1968. An Introduction to Tree - Ring Dating. University of Chicago Press, Chicago 110 pp.
Southern Oscillation Index Based Upon Annual Standardization, Climate And Gloabal Dynamics Division,
National Center For Atmospheric Research (http://www.cgd.ucar.edu/cas/catalog/climind/soiAnnual.html)
Pieter A. Zuidema, Mart Vlam, Pham D. Chien, 2010. Ages and long - term growth patterns of four threatened
Vietnamese tree species. DOI 10.1007/s00468 - 010 - 0473 - 2.
