关于我国人工林可持续问题

On the Plantation Sustainability in China

介绍了中国人工林的现状,并用数据说明中国人工林存在的问题,如稳定性低,具体体现在病虫害严重、控制难,抵御气候灾害能力弱,地力衰退严重。另外,生物多样性低下和人工林质量差、生产力低等问题也很严峻。针对这些问题,文中提出了实现人工林可持续经营的途径。

There is a brief review of the researches on the forestry sustainability at the beginning, then the current status of plantation in China is shown with abundant figures. The plantation in China really suffers from many serious problems, such as biological instability, which includes pest and disease, weakness in climate attack tolerance, site productivity decline. Both biodiversity and productivity are low. This paper tries to find ways to solve these problems. The author presents the following suggestions： （ 1 ） to improve the stability, the base of stability is high biodiversity, we should utilize the natural forces in forest for recovery, build more mixture plantation ; （ 2 ） well productivity management ,which concerns reasonable site preparation, harvesting and fertilizing. There are also some factors on the productivity which can not be controlled by human, we should reduce these effects to the minimum ; （3） to promote intensive management, i. e. genetical control, site control, spacing control, vegetation control and site productivity control.