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characterization and typification of small ruminant farms providing fuelbreak grazing services for wildfire prevention in andalusia (spain).

Characterization and typification of small ruminant farms providing fuelbreak grazing services for wildfire prevention in Andalusia (Spain).

机构信息

Agroforestry Science Department, School of Agricultural Engineering, Sevilla University, Ctra. Utrera km 1, 41013 Seville, Spain.

Mediterranean Pastures and Silvopastoral Systems Research Group; CSIC-Estación Experimental del Zaidín, C/Profesor Albareda 1, 18008 Granada, Spain.

出版信息

Sci Total Environ. 2016 Feb 15;544:211-9. doi: 10.1016/j.scitotenv.2015.11.088. Epub 2015 Dec 3.

Abstract

Several wildfire prevention programs in Spain are using grazing livestock to maintain fuelbreaks with low levels of biomass. Even though shepherds are remunerated for these services, many of their farms are hardly viable in the current socio-economic context. By analyzing 54 small ruminant farms participating in the Grazed Fuelbreak Network in Andalusia (southern Spain), this research aimed to identify the main types and characteristics of such farms and, considering the challenges they are facing, propose strategies to improve both their economic viability and their effectiveness in fuelbreak grazing. Based on data collected through a survey on key farm management aspects, a multivariate analysis was performed and four main types of farm were identified: two clusters of dairy goat farms and two composed mostly of meat-purpose sheep farms. Farms in all clusters could benefit from improvements in the feeding and reproductive management of livestock, either to enhance their productivity or to make better use of the pasture resources available. Dairy goat farms remain more dependent on external animal feed to ensure a better lactation, therefore they should either diminish their workforce costs per animal or sell transformed products directly to consumers to improve their economic viability. Best fuelbreak grazing results were related to larger flocks combining sheep and goats, lower ratios of fuelbreak surface area per animal, and longer (year-long) grazing periods on fuelbreaks. Therefore, such farm features and adjusted fuelbreak assignments should be favored in wildfire prevention programs using grazing services.

摘要

西班牙的几个野火预防项目正在利用放牧牲畜来维持生物质能水平较低的防火带。尽管牧羊人因这些服务而获得报酬,但在当前的社会经济背景下,他们的许多农场几乎无法维持生计。本研究通过分析参与安达卢西亚(西班牙南部) Grazed Fuelbreak Network 的 54 个小反刍农场,旨在确定这些农场的主要类型和特征,并考虑到它们面临的挑战,提出提高其经济可行性和在防火带放牧中有效性的策略。基于通过关键农场管理方面调查收集的数据,进行了多元分析,确定了四种主要类型的农场:两个奶山羊农场集群和两个以肉用绵羊农场为主的集群。所有集群的农场都可以从改善牲畜的饲养和繁殖管理中受益,无论是提高生产力还是更好地利用现有的牧场资源。奶山羊农场仍然更加依赖外部动物饲料来确保更好的泌乳,因此,它们要么减少每只动物的劳动力成本,要么直接将加工产品销售给消费者,以提高其经济可行性。最好的防火带放牧结果与较大的羊群有关,这些羊群结合了绵羊和山羊,每只动物的防火带表面积比例较低,以及在防火带上进行更长时间(全年)的放牧。因此,在利用放牧服务进行野火预防计划时,应优先考虑这些农场的特点和调整后的防火带分配。

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