The effect of weeding frequency and schedule on weeding operation time: a simulation study on a sugi (Cryptomeria japonica) plantation in Japan  

作　　者：Keiko Fukumoto Tetsuji Ota Nobuya Mizoue Shigejiro Yoshida Yukio Teraoka Tsuyoshi Kajisa 

机构地区：[1]Graduate School of Bioresource and Bioenvironmental Sciences,Kyushu University,744 Motooka,Nishi-ku,Fukuoka 819-0395,Japan [2]Institute of Decision Science for a Sustainable Society,Kyushu University,744 Motooka,Nishi-ku,Fukuoka 819-0395,Japan [3]Faculty of Agriculture,Kyushu University,744 Motooka,Nishi-ku,Fukuoka 819-0395,Japan [4]Faculty of Agriculture,Kagoshima University,1-21-24 Korimoto,Kagoshima 890-0065,Japan [5]Forest and Forest Products Research Institute,Forest Research and Management Organization,1 Matsunosato,Tsukuba Ibaraki 305-8687,Japan

出　　处：《Journal of Forestry Research》2020年第6期2129-2135,共7页林业研究（英文版）

摘　　要：This study quantified the effect of weeding frequency and weeding schedules on weeding operation time in a sugi(Cryptomeria japonica)plantation stand.A weeding operation time estimation model was developed;then the cumulative weeding operation time after six growing seasons was simulated using the developed model.The developed model included weed height,relative height of weeds to sugi,and initial planting density.The simulated cumulative weeding operation time decreased approximately 6%for each one-treatment decrease in weeding frequency.Under a three-treatment weeding frequency scenario,the simulated cumulative operation time when weeding was conducted during non-consecutive years was longer than that when weeding was conducted during three consecutive years.The results suggest that carrying out weeding treatment during consecutive years is the more effective for reduction of weeding costs.We conclude that weeding schedule as well as weeding frequency must be considered for reduction of weeding operation time.

关 键 词：WEEDING Operation time Simulation Lowcost silviculture Growth model 

分 类 号：S791.27[农业科学—林木遗传育种] S765.1[农业科学—林学]