1 School of Geography Beijing Normal University Beijing

Transcription

1 Chinese Journal of Applied Ecology Oct * 1 2** Q A Responses of Pinus koraiensis tree ring cell scale parameters to climate elements in Changbai Mountains WANG Hui 1 SHAO Xue-mei 2 FANG Xiu-qi 1 YIN Zhi-yong 3 CHEN Li 2 ZHAO Dong-sheng 2 WU Shao-hong 2 1 School of Geography Beijing Normal University Beijing China 2 Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China 3 Department of Marine Science and Environmental Studies University of San Diego San Diego CA USA -Chin J Appl Ecol Abstract Based on the tree ring samples of Pinus koraiensis collected from the low altitude areas of Changbai Mountains seven standard chronologies for tree ring width and cell scale parameters were constructed Parts of the chronologies were chosen for the correlation analysis with the climate elements in at Donggang meteorological station and the changes of the correlations between tree ring indices and climate elements before and after 1988 in which the climate changed abruptly were discussed In the seven standard chronologies constructed cell number had the best correlation with tree ring width Both precipitation and air temperature were the limiting factors for the growth of P koraiensis but the chronologies had better correlation with precipitation than with air temperature mainly manifested in the significant correlation between the chronologies and the precipitation in previous September and current May and June Comparing with tree ring width cell size could reveal more climatic information mainly manifested in the positive correlation between the chronologies and the air temperature in March and the precipitation in May and the negative correlation between the chronologies and the air temperature in May After the abrupt change of air temperature in 1988 the responses of cell size to climate elements had some changes mainly manifested in the decreasing sensitivity to monthly climate elements and the earlier response time Key words Changbai Mountains Pinus koraiensis cell scale parameter climatic response * BAC03A02 ** shaoxm@ igsnrr ac cn

2 ' 42 45' N ' ' E 1100 m Tilia amurensis Quercus mongolica 6-8 Fraxinus mandshurica Acer mono Corylus mandshurica Philadelphus incanus Eleutherococcus senticossus 7 Evonymus pauciflorus Viburnum sargen tii 2 ~ ~ ~ ~ ~ 120 d 600 ~ 800 mm % ~ 75% ~ ' 8 N ' E 738 m 8 50 km 774 m T T max ' N ' E T min P a Lintab mm COFECHA 33 COFECHA Pinus koraiensis Mivnt 5

3 Fig 1 Characteristics of air temperature and precipitation in Pearson Donggang Meteorological Station in Fusong County T Monthly average air temperature T max 7 Monthly average maximum air temperature T min Monthly 37 average minimum air temperature P Monthly precipitation The same below Mann-Kendall Vaganov 7 Pearson Mivnt 40 1 Z Z = 1 2 ln 1 + r r Z Fisher z- r 2 μ Z 1 - Z 2 μ = n 槡 n 2-3 ARSTAN 35 67% μ Z 1 Z 2 5 Fisher z- n 1 n 2 μ

4 Table 1 Statistics of the standard chronologies and results of common period analysis Standard chronology Mean sensitivity Standard deviation Signal-tonoise First-order autocorrelation Correlation between trees ratio 1 Variance in Expressed first eigenvector population signal % TRW CN MCS ECS LCS MAXCS MINCS TRW Treering width CN Cell number MCS Whole ring mean cell size ECS Earlywood mean cell size LCS Latewood mean cell size MAXCS Maximum cell size MINCS Minimum cell size The same below μ > Cell number MCS Whole ring mean cell size ECS Early- Latewood mean cell size Maximum cell size MINCS Fig 2 Interannual change of indices of tree-ring chronologies TRW Tree-ring width CN 4 wood mean cell size LCS MAXCS Minimum cell size The same below Zhu Mann -Kendall

5 Table 2 Correlation coefficients among the 7 tree ring indices TRW CN MCS ECS LCS MAXCS TRW 1 CN ** 1 MCS * ECS ** 1 LCS ** ** ** ** 1 MAXCS * ** ** MINCS ** ** ** * ** * P<0 05 ** P<0 01 TRW 7 CN TRW CN Fig 3 Changes of annual mean air temperature and precipitation during in Donggang Meteorological Station in Fusong County MCS MCS ECS 4 TRW 6 CN 9 MCS ECS TRW CN 6 8 ECS 6 MCS ECS TRW CN

6 Fig 4 Correlation coefficients between the tree-ring indices and climate data P9 9 Last September P10 Last October P11 Last November P12 Last December Sizes of the circles indicated the strength of the correlations 0 05 The light shaded background mean significance at 0 05 level 0 01 The dark shaded background mean significance at 0 01 level The same below

7 μ Fig 5 Test results of the correlation differences between tree-ring indices and climate data for and the symbols represent different values of μ Positive meant that compared to the correlations between tree-ring indices and climate data during was becoming negative Negative meant that compared to the correlations between tree-ring indices and climate data during was becoming positive Fonti García-González 9 Castanea sativa Quercus ilex Campelo 8 10 Corcuera 42 6 TRW CN MCS ECS Yasue 18 Picea Camarero 16 glehnii Pinus 3 5 sylvestris Pinus uncinata 2 P < Wang Picea mariana 4

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