Economic Evaluation and Performance of a Tree Planting Machine Performing in Two Different Slope Classes and Conditions of Harvesting Slash

IF 2.7 2区 农林科学 Q1 FORESTRY
Rafael Ribeiro Soler, Saulo Phillipe Sebastião Guerra, Guilherme Oguri, Sérgio Augusto Rodrigues
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引用次数: 0

Abstract

In recent years, fully mechanized planters have gained attention in Brazil on flat to steep terrain. A field study was conducted to analyze the potential of a planting machine composed of a hydraulic crawler excavator and a planter unit to perform soil preparation and planting in two slope classes and two conditions of slash presence. The experimental area was divided according to slope – undulating (8% to 20%) and strong undulating (20% to 45%) – and the presence of slash. Slope class did not significantly affect productivity, nor was there a significant interaction effect between the slope and slash factors. The presence of slash proved to be statistically different, with mean productivity of 236 seedlings hour-1 when reloading the carousel in an area without harvesting slash. Tree planting machine utilization was 75.13%, and the mechanical availability was 79.6%. The presence of slash significantly reduced the tree planting machine productivity, including the seedling reloading time, suggesting a newer research line for fasters reloading seedling systems.
两种不同坡度和采伐条件下栽树机的经济评价与性能
近年来,在巴西平坦到陡峭的地形上,全机械化播种机已引起人们的注意。通过田间试验,分析了由液压履带式挖掘机和播种机组成的播种机在两种坡度和两种斜面条件下进行土壤准备和种植的潜力。根据坡度起伏(8% ~ 20%)、强起伏(20% ~ 45%)和斜面有无划分实验区。坡度对生产力的影响不显著,坡度与斜面因子之间也不存在显著的交互作用。在未收获秸秆的地区,重新装上传送带,平均产量为236株/ h。种树机利用率为75.13%,机械利用率为79.6%。刀伤的存在显著降低了植树机的生产效率,包括补苗时间,这提示了一个新的研究路线,即更快的补苗系统。
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来源期刊
CiteScore
5.20
自引率
12.50%
发文量
23
审稿时长
>12 weeks
期刊介绍: Croatian Journal of Forest Engineering (CROJFE) is a refereed journal distributed internationally, publishing original research articles concerning forest engineering, both theoretical and empirical. The journal covers all aspects of forest engineering research, ranging from basic to applied subjects. In addition to research articles, preliminary research notes and subject reviews are published. Journal Subjects and Fields: -Harvesting systems and technologies- Forest biomass and carbon sequestration- Forest road network planning, management and construction- System organization and forest operations- IT technologies and remote sensing- Engineering in urban forestry- Vehicle/machine design and evaluation- Modelling and sustainable management- Eco-efficient technologies in forestry- Ergonomics and work safety
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