间种对油茶幼林生长的影响及效益分析  

Effects of different intercropping commercial crops on growth and benefits of young Camellia oleifera forest

作　　者：彭映赫 伍利奇 陈永忠[1,2] 陈隆升[1,2] 王瑞[1,2] 彭邵锋[1,2] 马力[1,2] 许彦明[1,2] 

机构地区：[1]湖南省林业科学院,湖南长沙410004 [2]国家油茶工程技术研究中心,湖南长沙410004 [3]浏阳市沙市镇林业管理服务站,湖南浏阳410325

出　　处：《湖南林业科技》2016年第2期19-22,共4页Hunan Forestry Science & Technology

基　　金：湖南省科技重大专项(2013FJ1006)

摘　　要：选用黄豆、花生、红薯和烟叶4种农作物于油茶幼林内进行间作,研究不同间种模式对油茶幼树树体生长的影响,并对间种不同经济作物的油茶幼林林地经济效益进行分析。结果表明:间种可促进油茶幼林的生长,其中间种黄豆效果最好,树高增加了0.11 m,地径增加了0.04 cm,冠幅增加了0.21 m^2,花芽数增加了20个/枝。间种可增加油茶幼林的经济效益,其中间种烟叶效益最高,经济产出为48 960元/hm^2。综合来看,油茶幼林间种的经济作物宜选择较矮小、具根瘤固氮菌的花生、黄豆。Effects of different intercropping commercial crops,including soybean,peanut,sweet potato and tobacco,has been primarily studied through a survey of field investigation and laboratory analysis in terms of growth and benefits of young Camellia oleifera forest.The results indicated that intercropping could all effectively accelerate growth of C.oleifera forest,in which intercropping soybean has the best effect than other three patterns,tree height has increased 0.11 m, ground diameter increased 0.04 cm,crown width increased 0.21 m2 and flower buds increased 20 per stick respectively. Intercropping at young C.oleifera forest is a suitable forest management model which can effectively increase economic benefits.The profits of tobacco was highest,and the yield was 48 960 yuan/hm2.In general,the peanut and soybean with short individual and nitrogen fixation ability should be selected for intercropping at young C.oleifera forest.

关 键 词：油茶 间种 生长量 效益分析 

分 类 号：S794.4[农业科学—林木遗传育种]