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Table 1 Descriptive statistics of stand age, stand coverage, elevation, latitude, annual mean temperature and annual precipitation for natural and planted coniferous forests in the study region

From: Spatial pattern and driving factors of biomass carbon density for natural and planted coniferous forests in mountainous terrain, eastern Loess Plateau of China

Forest typeAGE (year)COV (%)ELE (km)LAT (°)TEMP (°C)PRCP (mm)N
meanRangemeanRangemeanRangemeanRangemeanRangemeanRange
Natural coniferous forests
Pinus5414–955520–901.4280.950–1.94036.8135.41–38.446.73.0–10.5500.8406.3–599.3222
Platycladus4825–855020–851.0180.483–1.60036.0134.97–37.519.55.4–13.3529.2425.6–607.835
Larix6217–915429–752.2351.870–2.50038.4737.84–39.131.7−0.5–4.2476430.3–558.215
Picea6526–866520–972.3051.862–2.56038.7637.89–39.091.1−0.5–3.7468.1446.5–569.814
 others279–553822–621.5091.260–1.64737.9936.72–39.755.73.6–8.1433.3395.3–478.93
 All549–955520–971.4640.483–2.56036.9134.97–39.756.5−0.5–13.3500.7395.3–607.8289
Planted coniferous forests
Pinus315–615920–911.3060.476–2.10036.9835.10–40.507.32.7–11.5510.8374.2–604.0148
Platycladus135–423320–900.9160.400–1.30036.7634.83–39.909.86.2–13.6507.3374.4–581.720
Larix268–605720–951.8931.260–2.38338.4236.43–39.673.2−0.1–7.8489.7404.5–620.945
Picea3515–476930–922.2091.717–2.41038.8938.79–38.971.40.4–3.4495.7452.5–619.84
 others116–152320–251.0670.697–1.43637.1435.49–38.808.76.1–11.3504.8430.8–578.82
 All285–615620–951.4050.400–2.41037.2934.83–40.506.6−0.1–13.6505.8374.2–620.9219
  1. AGE, stand age; COV, stand coverage; ELE, elevation; LAT, latitude; TEMP, annual mean temperature; and PRCP, annual precipitation. N, number of sample plots