间作牧草对桉树人工林生长量及凋落物的影响  

Impact of Silvopastoral Systems on Growth and Litter Amount of Eucalyptus AbL 12 Plantation

作　　者：白昌军[1] 虞道耿[1] 陈志权[1] 刘国道[1] 

机构地区：[1]中国热带农业科学院热带作物品种资源研究所农业部华南作物基因资源与种质创制重点实验室,海南儋州571737

出　　处：《热带作物学报》2012年第10期1896-1902,共7页Chinese Journal of Tropical Crops

基　　金：国家科技支撑计划项目(No.2011BAD17B01-01-5);农业部物种资源保护“热带牧草种质资源保存”项目;农业部热带作物种质资源保护项目(No.12RZZY-09);热带地区柱花草新品种选育技术研究

摘　　要：对海南省西北部干旱地区刚果12号桉人工林间作牧草对桉树生长量进行研究。结果表明:不施肥的情况下,间作牧草桉树胸径增粗49.70%,株高增加17.86%,桉树枯落物增加25.35%,林间蓄积的半分解物量提高了41.69%～52.73%,有利于养分的归还,提高了林地养分供应能力,说明在桉树林间作牧草有利于桉树林的生长以及土壤养分的提高。Impacts on the growth of Eucalyptus ABL 12 plantation after intercropping with forages in the northwestern arid area in Hainan were conducted. The prelimiuai7 results showed that intercropping with forages could promote the growth of eucalyptus biomass. In the silvopastoral systems, eucalyptus tree diameter at 1.3 m height was increased by 49.70%, the height was increased by 17.86%, the litter was increased by 25.35%, and the semi-decomposition organic matter was increased by 41.69%-52.73% eompared with that of the pure eucalyptus plantation 3 years later. It meant that eucalyptus plantation intercropping with forages could be propitious to the return of nutrients.

关 键 词：刚果12号桉 复合系统 牧草间作 桉树生长量 桉树凋落物 

分 类 号：S792.39[农业科学—林木遗传育种]