落叶松人工林带状间伐复层林省力化控草试验  

Laborsaving Test of Larix olgensis Plantations by Strip Thinning to Multi-storied Forest

作　　者：殷鸣放[1] 王祎帆 宁良智 梁泽 

机构地区：[1]沈阳农业大学,沈阳110161 [2]清原县大边沟林场

出　　处：《东北林业大学学报》2016年第6期28-32,共5页Journal of Northeast Forestry University

摘　　要：以落叶松带状间伐迹地人工更新林为研究对象,采用正交试验设计方法,选择地膜覆盖、遮阳网覆盖、化学控草等省力更新措施,调查了1 a中的杂草株防效指标,分析评价了省力更新试验效果。结果表明:地膜覆盖下株防效最优组合为2层黑色地膜铺设6个月;遮阳网覆盖下株防效最优组合为2层6针遮阳网铺设6个月;化学控草株防效表现为质量分数为0.032%的割地草、质量分数0.64%的阔灌净以及质量分数1.0%的草甘膦,对杂草的株防效最好;地膜加化学方法下株防效最优组合为使用质量分数0.064%的阔灌净、两层黑色地膜、质量分数1.0%的草甘膦、质量分数0.008%的割地草;遮阳网加化学方法下株防效最优组合为使用6针遮阳网,质量分数0.008%的割地草,质量分数0.64%的阔灌净以及质量分数1.00%的草甘膦。总体杂草株防效能力由大到小表现为:地膜叠加化学方法、使用遮阳网、遮阳网叠加化学方法、阔灌净、草甘膦、使用地膜、割地草。With artificial regenerated forest in cut-over land of strip cutting of larch,by orthogonal test,we selected the laborsaving regeneration measures including plastic film mulching,shading net covering and chemical weeds control,to investigate control efficiency index within a year,analyze and evaluate the effectiveness of labor-saving regeneration test. The optimal method of plastic film mulching in respect of control efficiency was mulching two layers of black film for six months;the optimal combination of shading net covering method was using two layers of six-weft shading net for six months; the optimal control efficiency was achieved in the chemical weed control by Gedicao of 0. 032%,Kuoguanjing of 0. 64% and Glyphosate of 1.0% in contents; the optimal combination of film mulching and chemical control was Kuoguanjing of 0.64%,two layers of black film mulching,Glyphosate of 1.0% and Gedicao of 0.008%; the optimal combination of shading net covering and chemical control was six-weft shading net,Gedicao of 0.008%,Kuoguanjing of 0.64% and Glyphosate of 1.00%.The overall performance of control efficiency of weeds was ranked in descending order of plastic film mulching with chemical control,shading net covering,shading net covering with chemical control,Kuoguanjing,Glyphosate,plastic film mulching,and Gedicao.

关 键 词：落叶松林 人工林 带状间伐 省力化育林 

分 类 号：S757[农业科学—森林经理学]