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Table 2 Nutrient resorption efficiency (NuRE) (Mean ± SE) of three oak species (Q. aliena var. acuteserrata, Q. glandulifera, and Q. variabilis) over five years

From: Nutrient resorption strategies of three oak tree species in response to interannual climate variability

Element Tree
species
Year
2013 2014 2015 2016 2018
C 1 20.58 ± 0.46b 25.02 ± 0.22a 19.19 ± 0.30c 20.60 ± 0.26b 21.41 ± 0.51b
  2 20.37 ± 0.43c 24.22 ± 0.33a 20.31 ± 0.40c 20.42 ± 0.08c 22.16 ± 0.40b
  3 21.94 ± 0.91b 24.48 ± 0.62a 20.30 ± 0.98bc 19.83 ± 0.04c 20.69 ± 0.23bc
N 1 68.33 ± 0.94a 71.24 ± 0.41a 65.17 ± 2.88a 50.27 ± 3.61b 68.10 ± 0.42a
  2 68.61 ± 1.29a 72.64 ± 1.06a 67.97 ± 1.56a 57.70 ± 3.70b 71.77 ± 0.70a
  3 65.97 ± 1.94b 70.78 ± 0.36a 67.16 ± 1.13bc 62.08 ± 1.90c 66.54 ± 0.15bc
P 1 82.38 ± 0.89a 84.93 ± 1.67a 81.58 ± 0.99a 60.86 ± 6.50b 59.79 ± 1.79b
  2 85.44 ± 0.67a 86.52 ± 0.37a 84.20 ± 0.79a 70.74 ± 5.33b 52.79 ± 1.34c
  3 83.20 ± 1.47a 83.75 ± 1.57a 85.50 ± 0.80a 77.60 ± 0.72b 53.48 ± 0.78c
S 1 50.48 ± 0.33b 62.06 ± 0.96a 53.49 ± 2.04ab 36.43 ± 5.83c 54.27 ± 0.33ab
  2 53.92 ± 2.12b 64.62 ± 3.01a 53.90 ± 2.00b 46.11 ± 1.03c 48.87 ± 0.63bc
  3 43.86 ± 3.58c 64.18 ± 2.77a 54.20 ± 0.84b 49.75 ± 0.96bc 45.68 ± 0.92c
K 1 70.19 ± 1.55 78.16 ± 1.56 77.34 ± 3.18 67.30 ± 6.69 77.41 ± 2.00
  2 70.36 ± 3.12 76.07 ± 3.68 79.29 ± 3.36 69.19 ± 3.99 73.57 ± 2.40
  3 71.62 ± 2.37 69.64 ± 3.98 70.21 ± 1.56 69.66 ± 0.78 69.19 ± 1.16
Na 1 65.64 ± 5.85a –38.71 ± 8.04ab –29.03 ± 30.22b –45.82 ± 61.48ab 27.41 ± 3.47ab
  2 40.45 ± 9.05a –45.69 ± 13.20c –24.60 ± 14.36bc 12.57 ± 34.25abc 16.77 ± 2.84ab
  3 24.55 ± 14.64a –69.13 ± 28.59b 13.34 ± 10.50a –19.10 ± 19.81ab 24.36 ± 3.76a
Ca 1 8.11 ± 3.60a –32.61 ± 7.25b –21.02 ± 11.83b 8.79 ± 4.95a 31.27 ± 6.25a
  2 –7.34 ± 2.94bc –27.46 ± 1.36d –21.46 ± 7.47 cd 11.77 ± 7.12a 3.47 ± 4.37ab
  3 –6.35 ± 10.41ab –49.00 ± 7.42c –13.63 ± 12.22b 18.32 ± 1.50a 11.78 ± 2.72ab
Mg 1 32.80 ± 5.93 22.80 ± 4.75 34.55 ± 4.27 25.53 ± 12.21 45.68 ± 2.80
  2 23.54 ± 3.23b 8.81 ± 1.19c 25.81 ± 2.08a 34.64 ± 5.91a 31.02 ± 0.94ab
  3 10.13 ± 9.48b 0.28 ± 5.94b 20.32 ± 2.80ab 31.37 ± 4.79a 23.76 ± 5.07ab
Al 1 –99.94 ± 16.82b –46.75 ± 15.56ab –66.32 ± 9.95b –101.92 ± 27.44b –3.58 ± 19.97a
  2 –143.88 ± 20.34b –39.40 ± 30.06a –66.90 ± 15.83a –5.22 ± 3.48a –67.89 ± 14.43a
  3 –142.46 ± 12.66c –58.17 ± 16.43ab –69.48 ± 10.15a –38.56 ± 13.68a –107.48 ± 4.40b
Fe 1 –135.86 ± 11.40d –14.73 ± 8.07ab –6.02 ± 10.85a –69.67 ± 19.82c –47.58 ± 0.47bc
  2 –140.85 ± 8.93c –4.94 ± 14.99a –7.43 ± 6.86a –5.02 ± 7.24a –89.21 ± 10.44b
  3 –112.38 ± 14.27c –30.15 ± 19.08b 8.63 ± 6.58a 29.77 ± 20.73a –51.29 ± 10.28b
Mn 1 28.40 ± 3.80a –37.56 ± 11.70c –14.71 ± 8.63bc 3.28 ± 10.61ab 0.90 ± 11.95ab
  2 –0.21 ± 6.45a –61.24 ± 38.24b –10.38 ± 6.17ab 3.92 ± 11.15a 1.07 ± 2.09a
  3 18.83 ± 10.19a –21.96 ± 11.39b –9.89 ± 5.66ab 5.72 ± 3.09a 12.12 ± 6.14a
Zn 1 20.47 ± 1.40b 14.49 ± 2.05b 25.26 ± 8.83b 25.79 ± 8.41b 64.25 ± 15.42a
  2 33.63 ± 2.05a 15.24 ± 6.57ab 7.98 ± 8.87b 24.36 ± 5.09ab 18.60 ± 4.69ab
  3 23.69 ± 7.19a 0.50 ± 10.28bc –4.65 ± 7.65c 16.54 ± 5.78ab –3.07 ± 4.10bc
Cu 1 52.09 ± 4.36a 33.95 ± 2.65a –262.96 ± 75.09b –68.93 ± 100.49a 32.05 ± 5.23a
  2 40.54 ± 6.67a 45.12 ± 0.00a –374.76 ± 41.55b 36.41 ± 0.87a 37.93 ± 3.27a
  3 44.85 ± 5.97a 18.58 ± 9.01a –480.16 ± 65.28b 37.28 ± 0.00a 31.40 ± 5.66a
Ba 1 16.07 ± 2.57a –53.24 ± 10.19b –51.38 ± 14.94b –11.13 ± 8.79a –14.53 ± 13.60a
  2 7.73 ± 1.35a –58.46 ± 32.67b –43.37 ± 20.89ab –12.16 ± 13.37ab –8.44 ± 10.95ab
  3 –34.56 ± 23.09ab –56.08 ± 32.15b –22.80 ± 11.20ab 11.20 ± 9.54a 5.50 ± 8.55ab
  1. Numbers represent the three oak species: Q. aliena var. acuteserrata (1), Q. glandulifera (2), and Q. variabilis (3). Letters represent significant difference (P < 0.05) by Duncan test (n = 15)