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OXYGEN ISOTOPE (δ18O) OF TEAK TREE-RINGS IN NORTHWEST THAILAND
Buajan,S1; Pumijumnong,N2; Li,Q3; Liu,Y3
2016
Source PublicationJournal of Tropical Forest Science
Volume28Issue:4Pages:396-405
Subtype期刊论文
AbstractWe investigated the relationship between the oxygen isotopes in teak (Tectona grandis) tree-ring cellulose and climatic factors, i.e. rainfall, temperature and relative humidity. Four cores of teak from northwest Thailand were used to analyse the oxygen isotope values in α-cellulose. The oxygen isotopic composition of teak tree-ring α-cellulose ranged from 21.38‰ to 25.58‰. The mean tree-ring α-cellulose δ18O values and standard deviations were 23.4 ± 0.7‰. The δ18O value was positively correlated with rainfall in the February to April dry season (r = 0.234, p < 0.5) and negatively correlated with total rainfall (r = -0.350, p < 0.01), average rainfall (r = -0.321, p < 0.01) and relative humidity (r = -0.282, p < 0.05) in the late rainy season. The δ18O values were negatively correlated with the annual mean Palmer Drought Severity Index (PDSI) from 1948 to 2005 (r = -0.491, p < 0.001) based on the mean of 4 grids. Oxygen isotope values in the α-cellulose of teak from northwest Thailand were significantly related to the hydrological cycle in these areas.
KeywordΑ-cellulose Pdsi Hydrological Cycle Wood Cellulose Teak Tree-rings
Indexed BySCI
Project NumberRDG55H0006
Language英语
Funding OrganizationThailandResearch Fund (TRF) ; ThailandResearch Fund (TRF) ; project ‘Interactions between humans ; project ‘Interactions between humans ; their environments in highland PangMa Pha, Mae Hong Son Province’ ; their environments in highland PangMa Pha, Mae Hong Son Province’
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5868
Collection现代环境研究室
Corresponding AuthorPumijumnong,N
Affiliation1.College of Forestry, Fujian Agriculture and forestry University, Fujian 350002, China
2.Faculty of Environment and Resource Studies, Mahidol University, Nakhon Pathom 73170,Thailand
3.Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China
Recommended Citation
GB/T 7714
Buajan,S,Pumijumnong,N,Li,Q,et al. OXYGEN ISOTOPE (δ18O) OF TEAK TREE-RINGS IN NORTHWEST THAILAND[J]. Journal of Tropical Forest Science,2016,28(4):396-405.
APA Buajan,S,Pumijumnong,N,Li,Q,&Liu,Y.(2016).OXYGEN ISOTOPE (δ18O) OF TEAK TREE-RINGS IN NORTHWEST THAILAND.Journal of Tropical Forest Science,28(4),396-405.
MLA Buajan,S,et al."OXYGEN ISOTOPE (δ18O) OF TEAK TREE-RINGS IN NORTHWEST THAILAND".Journal of Tropical Forest Science 28.4(2016):396-405.
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