Forest biomass with energy purpose is gaining importance. Although there is a lot of information about afforestation for energy purpose, native resource management for biofuel production is a less studied topic. Consequently, generating information about management of local forest types that have potential for providing biomass for energy, such as resprouting shrublands, becomes a priority objective. We evaluated the effects of harvesting intensity on coppice growth in three resprouting shrublands with contrasting site conditions in northern Patagonia (Argentina). At each site, three harvesting treatments in strips of increasing width were randomly assigned to six permanent plots of 31.5 × 45 m during 2013–2014. Four years after, we measured resprouts (number and size of stems) of the five native dominant species. We found that almost all species responded to harvesting intensity by enhancing the coppice growth rates. Nonetheless, species showed different strategies for resource obtention. When analyzing at the community level, the response to harvesting intensity was consistent among the hillside sites, but conservative in the valley bottom site with the worst environmental conditions. Due to the high response of these species to harvesting intensity, we conclude that intense shrubland management for biomass commercialization could be a viable option depending on site conditions.

中文翻译：

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采伐强度和立地条件对巴塔哥尼亚北部灌丛生物质产量的影响

以能源为目的的森林生物质越来越重要。尽管有很多关于以能源为目的的植树造林的信息，但生物燃料生产的本地资源管理是一个研究较少的主题。因此，生成有关当地森林类型管理的信息，这些森林类型有可能为能源提供生物质，例如重新发芽灌木丛，成为优先目标。我们评估了收获强度对巴塔哥尼亚北部（阿根廷）三个重新发芽的灌木林中灌木林生长的影响。在每个地点，2013-2014 年期间，在 6 个 31.5 × 45 m 的永久性小区中随机分配 3 个逐渐增加宽度的条带收获处理。四年后，我们测量了五种本地优势物种的再芽（茎的数量和大小）。我们发现几乎所有物种都通过提高矮林生长率来响应采伐强度。尽管如此，物种表现出不同的资源获取策略。在社区层面分析时，山坡场地对采伐强度的响应是一致的，但在环境条件最差的谷底场地则较为保守。由于这些物种对收获强度的高度响应，我们得出结论，根据现场条件，针对生物质商业化的密集灌木丛管理可能是一个可行的选择。但在环境条件最差的谷底场地较为保守。由于这些物种对收获强度的高度响应，我们得出结论，根据现场条件，针对生物质商业化的密集灌木丛管理可能是一个可行的选择。但在环境条件最差的谷底场地较为保守。由于这些物种对收获强度的高度响应，我们得出结论，根据现场条件，针对生物质商业化的密集灌木丛管理可能是一个可行的选择。