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Table 1 Study sites characteristics. Mean values ± standard errors

From: Effects of firewood harvesting intensity on biodiversity and ecosystem services in shrublands of northern Patagonia

Site and stand variables Site productivity as firewood production
High Medium Low
Slope aspect South North
Topographic position Low hillside Low hillside Valley bottom
Annual mean temp. (°C) 7.0 8.0 9.4
Summer mean temp. (°C) 12.7 13.5 15.9
Winter mean temp. (°C) 2.5 2.7 2.3
Annual precipitation (mm) 1100 1100 950
Soil group Hapludands Hapludands Udivitrands
Soil depth (cm) 125 55 90
Carbon (%) 8 5.7 6.3
Nitrogen (%) 0.5 0.3 0.4
Phosphorus-Olsen (μg·g−1) 7.7 1.5 2
Stand age (years) ~ 50 ~ 50 ~ 30
Stems density (stems·ha− 1) 9847 ± 696 8554 ± 1591 37,129 ± 354
N. antarctica dominant height (m) 6.1 ± 0.7 3.4 ± 0.4 2.5 ± 0.1
N. antarctica mean base diameter (cm) 9.0 ± 0.7 6.9 ± 0.4 3.1 ± 0.1
Firewood volume (m3·ha− 1)* 149.5 ± 22.9 77.7 ± 20.2 9.3 ± 1.8
MAI (m3·ha− 1·year− 1)** 2.9 ± 0.5 (a) 1.6 ± 0.4 (b) 0.3 ± 0.1 (c)
Main woody species (%) Nothofagus antarctica (41.5)
Embothrium coccineum (38.1)
Schinus patagonicus (10.8)
Others (9.6)
Nothofagus antarctica (41.3)
Lomatia hirsuta (32.8)
Schinus patagonicus (16.6)
Others (9.3)
Nothofagus antarctica (100)
  1. *Mean volume for all harvesting intensities (30%, 50%, 70%) extrapolated to hectare. ** Estimated mean annual increment considering firewood volume for all treatments and stand age. Different letters indicate significant statistical differences using LSD.test function after ANOVA (p-value < 0.001)