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首页> 外文期刊>Australian Journal of Crop Science >Simulation of scenarios considering different stump and pre-bucking disc heights in mechanized timber harvesting operations in Pinus spp. stands after the fourth thinning
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Simulation of scenarios considering different stump and pre-bucking disc heights in mechanized timber harvesting operations in Pinus spp. stands after the fourth thinning

机译：在Pinus spp的机械化木材采伐作业中考虑不同树桩高度和预屈曲盘高度的情景模拟。第四次稀疏后站立

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This study aimed to quantify scenarios, considering different stump and pre-bucking disc heights, in order to search for alternatives to optimize the mechanized timber harvesting process in a Pinus spp. forest. In this way, the simulation of six scenarios was carried out after the fourth thinning. The situation defined by the company in its planning was considered and applied to scenario 1 (S1), with stump heights and pre-bucking disc heights of up to 15 cm and 10 cm, respectively. The scenario 2 (S2) included the real situation, that is, the measurements made in sample units installed on the field, scenario 3 (S3) included stump heights of 10 cm and pre-bucking disc heights of 5 cm and, in the other scenarios (S4, S5 and S6), stump and pre-bucking disc heights with values higher than the ones specified by the company were included. To that end, taper functions were used to quantify the assortments and the economic returns for each scenario. Results showed that scenario 3 presented the highest economic gain (5434.27 USD ha - 1 ) followed by scenario 2 (5431.97 USD ha -1 ), surpassing the production expectations (S1). Therefore, the company must seek to improve and optimize the mechanized harvesting process by increasing investments for improvements in the planning of the operations, establishing measures throughout the production process and training the employees. These changes can reduce the non-conformities, expand revenues and result in better use of natural resources.
机译：这项研究旨在量化方案，考虑不同的树桩和预弯曲的圆盘高度，以便寻找替代方案以优化松属植物的机械化木材采伐过程。森林。这样，在第四次细化之后对六个场景进行了模拟。考虑了公司在其计划中定义的情况，并将其应用于方案1（S1），其树桩高度和预压盘高度分别分别为15厘米和10厘米。方案2（S2）包含了实际情况，即在现场安装的样品单元中进行的测量，方案3（S3）包含了10 cm的树桩高度和5 cm的预压盘高度，其他情况则包括场景（S4，S5和S6），残桩和预屈片高度都高于公司指定的值。为此，使用锥度函数来量化每种方案的分类和经济收益。结果显示，方案3的经济收益最高（5434.27 USD ha-1），其次是方案2（5431.97 USD ha -1），超过了生产预期（S1）。因此，公司必须寻求通过增加投资来改进和优化机械化收割过程，以改进作业计划，在整个生产过程中制定措施并培训员工。这些变化可以减少不符合项，扩大收入并导致更好地利用自然资源。

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