Competition between plant populations with different rooting depths : I. Theoretical considerations.

摘要: As an extension of De Wit's competition theory a theoretical description has been developed between plant populations with different rooting depths. This model shows that in mixtures plants depths the value Relative Yield Total can be expected to exceed one. Moreover, it predicts frequency-dependence relative crowding coefficient deep population respect shallow population. The relationship properties species and environment required establish stable equilibrium turns out surprisingly simple. have larger competitive ability sufficient compensate for extra nutrients are exploited by deeper plants. dependence frequencies on characteristics is discussed.