Technology alternatives for tapping the pruning residue resource

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• 作者：Natascia Magagnotti^a ; ^{magagnotti@ivalsa.cnr.it} ; Luigi Pari^b ; ^{luigi.pari@entecra.it} ; Gianni Picchi^a ; ^{picchi@ivalsa.cnr.it} ; Raffaele Spinelli^a ; ^{spinelli@ivalsa.cnr.it}
• 关键词：Energy ; Vineyards ; Harvesting ; Biomass
• 刊名：Bioresource Technology
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：128
• 期：Complete
• 页码：697-702
• 全文大小：307 K

文摘

Four commercial harvesters were compared with respect to recovery of pruning residues for energy conversion. These harvesters were tested side-by-side on 17 test fields, totaling 15 ha. The test fields consisted of vineyards and apple and pear orchards. The residue yield was between 0.7 and 9 green tonne per hectare, at a moisture content from 37 % to 48 % . Yield was highest for the orchards, and lowest for vineyards. Harvesters collected the residues and moved them to the roadside at a cost of between 11 and 60€ per green tonne, depending on field conditions and technology choice. Single-pass harvesting was the cheapest, especially if applied through a dedicated tractor and a towed unit with a large integral container. Two-pass harvesting was the most flexible, but also the most expensive: it should be favored only when space, weather or other management constraints limit the application of the other systems.