Abstract:

Bamboo ecosystem, one of the important components of forestry ecosystem, is usually made use of foods, structure material, biological energy and so on, especially in Southeast Asia. Development groups have proposed bamboo production as an opportunity for increasing the wealth of the lower-income groups. The area of world forest decreases by predatory uses of people, on the contrary, bamboo increases mainly for economical causes and specialized functional uses like soil and water preservation or sight-seeing matter. As for the study of bamboo ecosystem is rare, except some of incomplete discussion,and the most of papers are inclined to the positive effects of bamboo in the ecosystem. But those studies last so short that the ecosystem restoration is only at the beginning of initial phase and the results can not be the proofs of positive effects that preserve the soil and water and improve soil fertilization in the long-term dynamic change. Meanwhile, the global climate changes so acutely that some catastrophic climate phenomenon like EI Nino Southern Oscillation (ENSO) will help the bamboo to expand the habitats and even area of high latitude, if the powerful propagation capacity of bamboo is cared less. Nowadays, more and more natural bamboo system has been changed into semi-artificial or artificial system without conforming to the natural succession principle. Coupled with bamboo ecosystem maybe is in the status of discontinuity that the structure, procession and function are back out for its monocarpic perennial character and the disturbance from nature and human. Moreover, if there is no subtle management and decrease of the damaging disturbance, the bamboo ecosystem is unsustainable and even under the menace of crash. So we discuss the sustainability and plasticity response of bamboo ecosystem that acts the roles in components of agriforestry system, specialized functional groups and part of natural ecosystem. And we strongly suggest the long-term investigation for bamboo through integrating a wide range of experimental, comparative and theoretical approaches, for which nowadays from study cases from home and abroad, ecologists are inclining to gain a detailed understanding of the long-term dynamics behavior of vegetation like the invasion of bamboo ecosystem.

Key words: sustainability, bamboo forest, disturbance, invasion, oriented investigation