广西桂中桉树人工林风险防控

近10年来广西桂中桉树发展迅速，所占比例为广西的桉树1/3，成为木材加工的主要原料，但仍存在不少经营风险，主要是品种单一、病虫害隐患大、抚育施肥粗放、霜冻灾害影响、生态环境安全等。本文针对所隐藏风险，提出防控规避建议，包括加强品种选育，增加造林品种；采取营林措施，病虫害采用综合防治；合理配方施肥，加强施肥除草管理；根据立地条件，做好区域树种规划；合理生产经营措施，保护生态环境等建议。

Control on the Risks of Eucalyptus Plantation in Central Guangxi

Plantation cultivation of Eucalyptus species in central Guangxi has undergone rapid development during the past decade. These species now account for 1/3 of the planted forest area in Guangxi province and have become one of the main sources of raw material for the province’s wood processing industries. But, eucalypt plantations in Guangxi still have a lot of business risks, including: limited genetic diversity in plantations, losses due to pests and diseases, over use of fertilizers, excessive and costly tending, and ecological problems. This current study examines corresponding preventive measures for these risks, including strengthening breeding, increasing the diversity of varieties for planting, implementing IPM (Integrated Pest Management) programs, rational fertilization, adjusting planting programs and management of potential ecological impacts.