Fenning Trevor M, Gershenzon Jonathan
Max Planck Institute for Chemical Ecology, Winzerlaer Str. 10, D-07745 Jena, Germany.
Trends Biotechnol. 2002 Jul;20(7):291-6. doi: 10.1016/s0167-7799(02)01983-2.
Wood is almost as important to humanity as food, and the natural forests from which most of it is harvested from are of enormous environmental value. However, these slow-growing forests are unable to meet current demand, resulting in the loss and degradation of forest. Plantation forests have the potential to supply the bulk of humanity's wood needs on a long-term basis, and so reduce to acceptable limits the harvest pressures on natural forests. However, if they are to be successful, plantation forests must have a far higher yield of timber than their natural counterparts, on much shorter rotation times. To achieve this in reasonable time, biotechnology must be applied to the tree-improvement process, for which large increases in public and private capital investment are needed. However, additional obstacles exist in the form of opposition to plantations, some forest ecocertification schemes, and concerns about aspects of forest biotechnology, especially genetic engineering. It is the intention of this article to explain, in detail, why plantation forests are needed to sustainably meet the world's demand for wood, why they are not being developed fast enough, and why the application of biotechnology to tree improvement is essential to speeding up this process.
木材对人类几乎和食物一样重要,而大多数木材所采伐自的天然森林具有巨大的环境价值。然而,这些生长缓慢的森林无法满足当前需求,导致森林损失和退化。人工林有潜力长期满足人类大部分木材需求,从而将对天然森林的采伐压力降低到可接受的限度。然而,要想成功,人工林的木材产量必须比天然林高得多,轮伐期也要短得多。为了在合理时间内实现这一目标,必须将生物技术应用于树木改良过程,为此需要大幅增加公共和私人资本投资。然而,还存在其他障碍,如对人工林的反对、一些森林生态认证计划以及对森林生物技术某些方面的担忧,尤其是基因工程。本文旨在详细解释为什么需要人工林来可持续地满足世界对木材的需求,为什么它们的发展不够迅速,以及为什么将生物技术应用于树木改良对于加速这一进程至关重要。