One of the reasons that bamboo is considered renewable is because it can be grown very quickly. For example, a sixty foot bamboo plant can be replaced in as little as sixty days. This is very fast when compared to a sixty foot hardwood tree that can take up to sixty years to replace.
Bamboo is a quickly renewable resource. Bamboo is the single fastest growing species of plant on the planet with some species growing more than a meter a day. In sharp contrast to trees which require decades to recover from harvesting, bamboo reaches maturity in 3 to 5 years or less and when it is cut, the stem is left in the soil to sprout a new shoot and start the growing process again.
In addition, bamboo thrives in depleted soil, bamboo paper is recyclable, it helps soil erosion, and it helps economic development. The uses of bamboo reduces the amount of deforestation dramatically.