Table 2 Best model formulations for estimating four forest attributes across four forest types using the total number of plots
Forest type | Attribute | Model formulation |
|---|---|---|
Chinese fir | Mean diameter at breast height (DBH) (cm) | \({DBH}_{\mathrm{Fir}}={a}_{0}hp{95}^{{a}_{1}}{CC}^{{a}_{2}}{LADcv}^{{a}_{3}}{Hcv}^{{a}_{4}}{dp50}^{{a}_{5}}\) |
Mean stand height (H) (m) | \({H}_{\mathrm{Fir}}={a}_{0}hp{95}^{{a}_{1}}{CC}^{{a}_{2}}{LADcv}^{{a}_{3}}{Hstdev}^{{a}_{4}}{dp50}^{{a}_{5}}\) | |
Basal area (BA) (m2ha−1) | \({BA}_{\mathrm{Fir}}={a}_{0}hp{95}^{{a}_{1}}{CC}^{{a}_{2}}{LADmean}^{{a}_{3}}{Hcv}^{{a}_{4}}\) | |
Stand volume (VOL) (m3ha−1) | \({VOL}_{\mathrm{Fir}}={a}_{0}hp{95}^{{a}_{1}}{CC}^{{a}_{2}}{LADmean}^{{a}_{3}}{Hcv}^{{a}_{4}}\) | |
Masson pine | Mean diameter at breast height (DBH) (cm) | \({DBH}_{\mathrm{Pine}}={a}_{0}{Hmean}^{{a}_{1}}{CC}^{{a}_{2}}{LADmean}^{{a}_{3}}{Hcv}^{{a}_{4}}\) |
Mean stand height (H) (m) | \({H}_{\mathrm{Pine}}={a}_{0}{Hmean}^{{a}_{1}}{CC}^{{a}_{2}}{VFPmean}^{{a}_{3}}{Hcv}^{{a}_{4}}\) | |
Basal area (BA) (m2ha−1) | \({BA}_{\mathrm{Pine}}={a}_{0}{hp95}^{{a}_{1}}{CC}^{{a}_{2}}{VFPmean}^{{a}_{3}}{Hcv}^{{a}_{4}}{dp75}^{{a}_{5}}\) | |
Stand volume (VOL) (m3ha−1) | \({VOL}_{\mathrm{Pine}}={a}_{0}{Hmean}^{{a}_{1}}{CC}^{{a}_{2}}{LADmean}^{{a}_{3}}{Hcv}^{{a}_{4}}{dp50}^{{a}_{5}}\) | |
Eucalyptus | Mean diameter at breast height (DBH) (cm) | \({DBH}_{\mathrm{Eucalyptus}}={a}_{0}{hp95}^{{a}_{1}}{CC}^{{a}_{2}}{LADstdev}^{{a}_{3}}{Hstdev}^{{a}_{4}}{dp75}^{{a}_{5}}\) |
Mean stand height (H) (m) | \({H}_{\mathrm{Eucalyptus}}={a}_{0}{hp95}^{{a}_{1}}{CC}^{{a}_{2}}{VFPmean}^{{a}_{3}}{Hcv}^{{a}_{4}}{dp50}^{{a}_{5}}\) | |
Basal area (BA) (m2ha−1) | \({BA}_{\mathrm{Eucalyptus}}={a}_{0}{hp95}^{{a}_{1}}{CC}^{{a}_{2}}{VFPstdev}^{{a}_{3}}{Hstdev}^{{a}_{4}}{dp75}^{{a}_{5}}\) | |
Stand volume (VOL) (m3ha−1) | \({VOL}_{\mathrm{Eucalyptus}}={a}_{0}{hp95}^{{a}_{1}}{CC}^{{a}_{2}}{VFPcv}^{{a}_{3}}{Hcv}^{{a}_{4}}{dp75}^{{a}_{5}}\) | |
Broad-leaved | Mean diameter at breast height (DBH) (cm) | \({DBH}_{\mathrm{Broad}-\mathrm{leaved}}={a}_{0}{Hmean}^{{a}_{1}}{CC}^{{a}_{2}}{LADmean}^{{a}_{3}}\) |
Mean stand height (H) (m) | \({H}_{\mathrm{Broad}-\mathrm{leaved}}={a}_{0}{Hmean}^{{a}_{1}}{CC}^{{a}_{2}}{VFPmean}^{{a}_{3}}\) | |
Basal area (BA) (m2ha−1) | \({BA}_{\mathrm{Broad}-\mathrm{leaved}}={a}_{0}{Hmean}^{{a}_{1}}{CC}^{{a}_{2}}{VFPstdev}^{{a}_{3}}\) | |
Stand volume (VOL) (m3ha−1) | \({VOL}_{\mathrm{Broad}-\mathrm{leaved}}={a}_{0}{Hmean}^{{a}_{1}}{CC}^{{a}_{2}}{VFPstdev}^{{a}_{3}}\) |