摘要
在不同造林密度和林地立地质量的桉树人工林中间种山毛豆、桂牧1号象草和柱花草，开展不同桉一草复合经营模式的生物产量和经济收益调查分析，结果表明，桉树人工林间种牧草能有效促进桉树生长，各模式单位面积木材蓄积量比纯林提高0．63％-22．58％，总净收益提高9．85％-19．77％。桉树密度、立地质量和牧草品种3因素对年净收益率的影响均表现为显著性差异，筛选出经济效益较为优良的桉树（2 mx6 m）＋山毛豆模式，值得推广应用。
In different planting density and land conditions of Eucalyptus plantations, the different agroforestry pat-terns with forages growing was studied by planting Tephrosia candida, （Pennisetum americanumxPennisetum purpure-urn） xPennisetum purpureum schum, cv. Mott and Stylosanthes guianensias SW, and the biological yield and economicreturns of these agroforestry managements were investigated and analyzed. The results showed that Eucalyptus planta-tion with interplantion of forages could effectively promote the growth of Eucalyptus, and each model had a increasedwood accumulation volume in each unit area with 0. 63 % - 22. 58 % compared with that of pure Eucalyptus planta-tions, the total net income increased by 9. 85 % - 19. 77 %. Annual net yield of different land conditions and den-sity varied significantly. In general, the pattern of Tephrosia candida growing in Eucalyptus （2 mx6 m） is worth topopularization.
出处
《西部林业科学》
CAS
2015年第5期50-56,共7页
Journal of West China Forestry Science
基金
广西科学研究与技术开发计划项目(主席科技资金2012217-1、桂科攻1299001-1)
广西优良用材林资源培育重点实验室开放课题(14B0201)
关键词
投资收益
复合经营
桉-牧模式
Investment income
comprehensive management
Eucalyptus-forages mode
