Chin J Plant Ecol ›› 2025, Vol. 49 ›› Issue (7): 1110-1118.DOI: 10.17521/cjpe.2024.0216 cstr: 32100.14.cjpe.2024.0216
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LI Gang-Dun, QIAN Ni-Peng, WANG Lin-Xu, DONG Chun-Chao, LIU Qi-Jing*()
Received:
2024-07-04
Accepted:
2024-10-09
Online:
2025-07-20
Published:
2024-10-11
Contact:
LIU Qi-Jing
Supported by:
LI Gang-Dun, QIAN Ni-Peng, WANG Lin-Xu, DONG Chun-Chao, LIU Qi-Jing. Seasonal dynamics of radial growth of Pinus koraiensis and Ulmus davidiana var. japonica are related to environmental factors in Changbai Mountain, China[J]. Chin J Plant Ecol, 2025, 49(7): 1110-1118.
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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2024.0216
Fig. 1 Seasonal process of climate at the observation site in the mixed broadleaf-Korean pine forest. PAR, photosynthetically active radiation; Pre, precipitation; RH, relative humidity; SWC, soil water content; Tmax, maximum air temperature; Tmean, mean air temperature; Tmin, minimum air temperature; ST, soil temperature; VPD, vapor pressure deficit.
Fig. 2 Seasonal patterns of xylem-cell differentiation for Pinus koraiensis and Ulmus davidiana var. japonica in 2023 in the mixed broadleaf-Korean pine forest of Changbai Mountain (mean ± SD).
树种 Species | 扩大阶段 Enlargement stage | 壁增厚阶段 Wall-thickening stage | 成熟阶段 Lignification stage | 生长季持续时间 Duration of growing season (d) | |||
---|---|---|---|---|---|---|---|
开始 Onset (DOY) | 结束 End (DOY) | 开始 Onset (DOY) | 结束 End (DOY) | 开始 Onset (DOY) | 结束 End (DOY) | ||
红松 P. koraiensis | 125 ± 2.6 | 238 ± 2.3 | 143 ± 2.5 | 245 ± 5.1 | 161 ± 6.2 | 250 ± 4.2 | 125 ± 2.0 |
春榆 U. davidiana var. japonica | 116 ± 4.7 | 241 ± 5.4 | 130 ± 7.6 | 246 ± 6.4 | 133 ± 2.0 | 270 ± 3.0 | 154 ± 2.0 |
Table 1 Timing and duration of cell occurrence at different stages of Pinus koraiensis and Ulmus davidiana var. japonica in the mixed broadleaf-Korean pine forest of Changbai Mountain (mean ± SD)
树种 Species | 扩大阶段 Enlargement stage | 壁增厚阶段 Wall-thickening stage | 成熟阶段 Lignification stage | 生长季持续时间 Duration of growing season (d) | |||
---|---|---|---|---|---|---|---|
开始 Onset (DOY) | 结束 End (DOY) | 开始 Onset (DOY) | 结束 End (DOY) | 开始 Onset (DOY) | 结束 End (DOY) | ||
红松 P. koraiensis | 125 ± 2.6 | 238 ± 2.3 | 143 ± 2.5 | 245 ± 5.1 | 161 ± 6.2 | 250 ± 4.2 | 125 ± 2.0 |
春榆 U. davidiana var. japonica | 116 ± 4.7 | 241 ± 5.4 | 130 ± 7.6 | 246 ± 6.4 | 133 ± 2.0 | 270 ± 3.0 | 154 ± 2.0 |
Fig. 3 Seasonal dynamics of accumulated growth and growth rate in xylem of P. koraiensis and U. davidiana var. japonica. Dots represent the total radial growth length for each species; curves in A and B are Gompertz model fitting curves for each tree species, while C and D represent the daily growth rate curves.
Fig. 4 Relationship between radial growth of Pinus koraiensis (Pk) and Ulmus davidiana var. japonica (Uj) and environmental factors. PAR, photosynthetically active radiation; Pre, precipitation; RH, relative humidity; SWC, soil water content; Tmax, maximum air temperature; Tmean, mean air temperature; Tmin, minimum air temperature; ST, soil temperature; VPD, vapor pressure deficit.
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