| Agro-Forest Systems - Employing Natural Processes in Species Succession | ||||
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| The development of a plant can be expressed as a growth and maturity curve. In nature, however, species do not grow alone, there are many species growing together in consortiums. When we analyse the principles underlying natural succession, we observe and differentiate stages or development cycles.
When planting, i.e.
corn with papaya and cocoa, initially the corn will grow fast for its
growth curve is steep. The growth dynamic of the corn positively influences
the growth of the papaya and the cocoa. When the corn reaches the flowering
stage, its growth slows down and so does its dynamic. When it matures,
the plant begins to wither and its cycle ends. Until it ends, this maturing
and "re-absorption" process (its organic matter is reintegrated
into the system) affects the development of the papaya and the cocoa tree.
Afterwards, the papaya continues its growth, developing with renewed strength
until it too reaches its maturity. In order to make the best use of this succession dynamic we must select species that complement each other overtime and within the consortium and stratum they occupy, trying to imitate, as much as possible, the dynamics and structure of a forest. At the end of its life cycle, before any given species starts its maturing process, it must be cut - corn has a 4 - 5 month cycle and papaya a 36 - 48 month cycle. Other species like the Inga (Inga spp.) or other trees should be pruned to rejuvenate them. This way their dynamics can be used to benefit other surrounding species. [top] |