Claim · model-written summary
Coefficient A subsequently tended to decrease to a constant level in Populus deltoides.
Populus deltoidesVerbatim
e0“With increasing τ, the coefficient A, the reciprocal of which means the asymptote of yield (=wρ) at a given growth stage, increased abruptly to a maximum value and then tended to decrease gradually to a constant level”
t0“Populus deltoides”
Title
Li Xue; Akio Hagihara Journal of Forest Research 2008. doi:10.1007/s10310-008-0070-z
Other claims from this paper (16)
- Method / resource The reciprocal equation described the competition-density effect in Populus deltoides plantations well.
- Method / resource The reciprocal equation described the competition-density effect in Populus × euramericana plantations well.
- Association The competition-density curve shifted upward faster in P. × euramericana than in P. deltoides over time.
- Association Biological time increased rapidly early and more slowly later in Populus deltoides plantations.
- Association Biological time increased rapidly early and more slowly later in Populus × euramericana plantations.
- Observation The biological-time trend was more evident in P. deltoides than P. × euramericana.
- Association Coefficient A increased abruptly to a maximum with biological time in Populus deltoides.
- Association Coefficient A increased abruptly to a maximum with biological time in Populus × euramericana.
- Association Coefficient A subsequently tended to decrease to a constant level in Populus × euramericana.
- Association Coefficient B decreased exponentially toward zero with biological time in Populus deltoides.
- Association Coefficient B decreased exponentially toward zero with biological time in Populus × euramericana.
- Association Growth coefficient λ(t) decreased with stand age in Populus deltoides.
- Association Growth coefficient λ(t) decreased with stand age in Populus × euramericana.
- Association Final yield increased gradually with stand age in Populus deltoides.
- Association Final yield increased gradually with stand age in Populus × euramericana.
- Observation Coefficients A, B and λ(t) differed between the two poplar species.
Populus