油茶低产林改造快速成园效益评价

Benefit Evaluation of Rapid Garden Establishment in Low-Yield Forest Transformation of Camellia oleifera

摘要:

为探索油茶低产林改造快速成园技术及经济效益最优化模式，采用 1 年实生油茶苗嫁接良种 “长林 4 号”“长林 40 号”“长林 53 号”“长林 3 号”，生长 3 年的容器大苗换栽技术，通过密度调整、施肥、病害防治等措施实施改造，最终测算分析容器大苗的地径、苗高、冠幅等生长指标增量及油茶鲜果产量，来评估容器大苗改造快速成园的可行性。结果表明：容器大苗改造具有成活率高，树体恢复快，挂果期提前等显著优势，最终使经济效益提高 89%。本试验模式可以加快集约经营，减少抚育年限，提前进入丰产期，能在实现快速成园的同时兼顾一定的经济效益，为本地油茶低产林提质增效提供参考。

Abstract:

To explore rapid garden establishment technology and economic benefit optimization models for low-yield forest transformation of C. oleifera, the container seedlings of 1-year-old C. oleifera seedlings grafted with "Changlin 4", "Changlin 40", "Changlin 53", and "Changlin 3", were used to grow for 3 years by interventions such as density adjustment, fertilization, and disease control. Growth increment indicators, including ground diameter, seedling height, and crown width, along with fresh fruit yield of C. oleifera, were measured and analyzed to evaluate the feasibility of rapid garden formation using container-grown seedlings.The results showed that container-grown seedlings exhibited high survival rates, rapid tree recovery, earlier fruiting periods, and an 89% increase in economic benefits.This experimental model facilitates intensive management, reduces tending period, and accelerates onset of high-yield stage, enabling rapid garden formation while maintaining a certain level of economic benefit. It provides a valuable reference for enhancing the quality and efficiency of low-yield C. oleifera forest in the region.