摘要
分析桉树人工林下保留不同密度五指毛桃对林分生长及土壤肥力的影响,为培育桉树-五指毛桃复层林提供实践参考。结果表明:桉树树高、胸径、单株材积、蓄积量、五指毛桃根产量等5项生长量指标及土壤全氮含量、水解氮含量、有效磷含量、速效钾含量、有机质含量等5项土壤肥力指标存在显著差异,表明桉树林下保留不同密度五指毛桃,会对桉树生长量、五指毛桃产量及土壤肥力产生不同程度的影响。桉树人工林下保留420株•hm^(-2)以上密度五指毛桃营造复层林,可以有效促进桉树生长、提升五指毛桃产量和改善土壤肥力。
This study analyzed the effects of retaining different densities of Ficushirta under Eucalyptus plantations on stand growth and soil fertility,providing practical references for cultivating Eucalyptus-F.hirta multi-layered forests.The results indicated significant differences in five growth indicators—Eucalyptus tree height,diameter at breast height,individual tree volume,stand volume,and F.hirta root yield—and five soil fertility indicators—total nitrogen content,hydrolyzable nitrogen content,available phosphorus content,available potassium content,and organic matter content.These findings demonstrated that retaining different densities of F.hirta under Eucalyptus plantations could variably impact Eucalyptus growth,F.hirta yield,and soil fertility.Retaining a density of more than 420 plants perhectare of F.hirta in Eucalyptus plantations to establish multi-layered forests could effectively promote Eucalyptus growth,enhance F.hirta yield,and improve soil fertility.
作者
郑俊强
许冰
沈茂芬
ZHENG Junqiang;XU Bing;SHEN Maofen(Longhailinxia Forest State-owned Forest Farm,Zhangzhou 363118,Fujian,China;Fujian Academy of Forestry,Fuzhou 350012,Fujian,China;Agriculture and Rural Bureau of Zhao'an,Zhangzhou 363500,Fujian,China)
出处
《桉树科技》
2025年第1期37-40,共4页
Eucalypt Science & Technology
基金
福建省属公益类科研院所基本科研专项(2022R1010001)。
关键词
桉树
五指毛桃
复层林
土壤肥力
Eucalyptus
Ficus hirta
multi-layered forest
soil fertility
