不同有机肥对桉树人工林生态和经济效益的影响  

Effects of Different Organic Fertilizers on Ecological and Economic Benefits of Eucalyptus Plantations

作　　者：覃祚玉[1,2,3] 邓小军 宋贤冲[1,2,3] 赵隽宇 唐健[1,2,3] 石媛媛 曹继钊 王会利[1,2,3] Qin Zuoyu;Deng Xiaojun;Song Xianchong;Zhao Junyu;Tang Jian;Shi Yuanyuan;Cao Jizhao;Wang Huili(Guangxi Forestry Research Institute,Nanning,Guangxi 530002,China;Guangxi Research and Development Center for New Forestry Fertilizer,Nanning,Guangxi 530002,China;Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Nanning,Guangxi 530002,China)

机构地区：[1]广西壮族自治区林业科学研究院,广西南宁530002 [2]广西林用新型肥料研发中心,广西南宁530002 [3]广西优良用材林资源培育重点实验室,广西南宁530002

出　　处：《广西林业科学》2023年第2期173-180,共8页Guangxi Forestry Science

基　　金：中央财政林业科技推广示范项目([2021]TG18号);广西科技厅中央引导地方科技发展资金项目(桂科ZY21195026);广西林业科技推广示范项目(桂林科研[2021]23号);广西自然科学基金项目(2022GXNSFBA035630,2022GXNSFBA035578)。

摘　　要：为维持桉树(Eucalyptus spp.)人工林长期生产力,设置林下间种山毛豆(Tephrosia candida)(T1)、林下间种田菁(Sesbania cannabina)(T2)、有机肥全替代(T3)和单施化肥(CK)4个模式,综合评价不同模式对桉树人工林的营养物质积累、土壤保育功能和价值及经济效益的影响。结果表明,T1和T2模式能提高人工林营养物质积累量和营养物质积累价值;T1、T2和T3模式土壤固土价值增量分别为18.31、21.80和14.08元/hm^(2),土壤保肥价值增量分别是CK的3.12、2.18和2.22倍,土壤保育功能价值增量分别比CK高出223.99%、130.23%和131.18%,均可有效提升土壤固土、保肥功能和价值。T3和T1模式的利润分别比CK高出2279.15和1425.06元,T3和T1模式经济效益显著。In order to maintain long-term productivity of Eucalyptus plantations,four models of understory in⁃tercropping with Tephrosia candida(T1),understory intercropping with Sesbania cannabina(T2),organic fertil⁃izer replacing chemical fertilizer(T3)and single application of chemical fertilizer(CK)were set up to compre⁃hensively evaluate effects of different modes on nutrient accumulation,soil conservation function and value,and economic benefits of Eucalyptus plantations.Results showed that T1 and T2 modes could improve nutrient accu⁃mulation and nutrient accumulation value in Eucalyptus plantations.Increments of soil stabilization values were 18.31,21.80 and 14.08 yuan/hm^(2)in T1,T2 and T3 modes,respectively,and increments of fertilizer retention values were 3.12,2.18 and 2.22 times of that of CK,respectively,and increments of soil conservation function values were 223.99%,130.23%and 131.18%higher than that of CK,respectively,which could effectively en⁃hance soil stabilization and fertilizer retention functions and values.Profits of T3 and T1 modes increased by 2279.15 and 1425.06 yuan than CK,respectively.T1 and T3 modes had significant economic benefits.

关 键 词：间种绿肥 土壤保育功能价值 营养物质积累价值 经济效益 桉树人工林 

分 类 号：S792.39[农业科学—林木遗传育种]