广西国有派阳山林场国家储备林土壤肥力质量评价

Evaluation of Soil Fertility Quality of National Reserve Forest in Guangxi State owned Paiyangshan Forest Farm

探明广西国有派阳山林场国家储备林土壤肥力,明晰实施前后国储林地土壤肥力演变情况,为广西桂西南地区国储林地力提升提供参考依据。监测2021年广西国有派阳山林场实施地力提升工程的国储林,设置监测点6个,监测面积36666.67hm^(2),分析国储林的土壤物理性质指标及土壤化学指标变化,采用修正的内梅罗(Nemoro)综合指数法评价土壤肥力等级。结果表明,在林场国储林建设中,应针对土壤肥力、肥料效应特点,找出主要障碍因子,精准调控,提高土壤肥力和林木综合生产能力,优化测土配方施肥体系,提高地力提升的精准性、有效性和持久性。

The purpose of this article is to explore the soil fertility of the national reserve forest of the state-owned Paiyangshan Forest Farm in Guangxi,and to clarify the evolution of soil fertility of the national reserve forest before and after implementation,in order to provide a reference basis for the improvement of the national reserve forest capacity in the southwestern region of Guangxi.By monitoring the national reserve forests implemented by the state-owned Paiyangshan Forest Farm in Guangxi in 2021 and setting up 6 monitoring points,the monitoring area reached 36666.67hm^(2).By analyzing the changes in soil physical and chemical indicators of the national reserve forests,this article uses the modified Nemoro comprehensive index method to evaluate the soil fertility level.The results showed that:in the construction of national forest reserves in forest farms,we should identify the main obstacle factors based on the characteristics of soil fertility and fertilizer effects,precisely regulate them,improve soil fertility and comprehensive production capacity of trees,optimize the soil testing formula fertilization system,and improve the accuracy,effectiveness,and durability of soil fertility improvement.