当前位置: X-MOL 学术For. Ecosyst. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effects of firewood harvesting intensity on biodiversity and ecosystem services in shrublands of northern Patagonia
Forest Ecosystems ( IF 4.1 ) Pub Date : 2020-07-19 , DOI: 10.1186/s40663-020-00255-y
Matías G. Goldenberg , Facundo J. Oddi , Juan H. Gowda , Lucas A. Garibaldi

Forest management has historically focused on provisioning of goods (e.g. timber, biomass), but there is an increasing interest to manage forests also to maintain biodiversity and to provide other ecosystem services (ES). We evaluated the effects of firewood harvesting intensity on biodiversity and different ES in three contrasting shrubland sites in northern Patagonia (Argentina). At each site, four harvesting treatments, representing various levels of harvest intensity, were randomly assigned to eight permanent sample plots of 31.5 m × 45 m during 2013–2014. We found that the effects of increasing harvesting intensity on plant diversity changed from negative to positive (and from nonlinear to more linear responses) with increasing site productivity. Harvesting intensity showed contrasting effects on variables related to fire protection ecosystem service, since it reduced fuel amount (potentially reducing fire spread) but also reduced live fuel moisture content (potentially increasing flammability) at the three sites. Two variables related to soil formation and protection ES, leaf litter cover and aerial soil cover, decreased with harvesting intensity at the three sites. We conclude that shrubland management for firewood production may enhance biodiversity without compromising certain important ES. The intensity of harvesting should be determined according to site conditions and forecasted impacts on biodiversity, fire and soil formation and protection.

中文翻译:

木柴采伐强度对巴塔哥尼亚北部灌木丛生物多样性和生态系统服务的影响

历史上,森林管理一直专注于商品(例如木材,生物质)的供应,但人们对管理森林,保持生物多样性和提供其他生态系统服务(ES)的兴趣也越来越高。我们评估了北部巴塔哥尼亚(阿根廷)三个对比灌木林地的柴禾采伐强度对生物多样性和不同生态系统的影响。在2013-2014年期间,在每个地点将代表不同收获强度水平的四种收获处理方法随机分配给8个永久性样地,面积为31.5 m×45 m。我们发现,随着站点生产力的提高,收获强度的增加对植物多样性的影响从负向正变化(从非线性向线性变化)。采伐强度对与消防生态系统服务相关的变量表现出相反的影响,因为这减少了三个地点的燃料量(潜在地减少了火势蔓延),但同时也降低了活燃料的水分含量(潜在地增加了可燃性)。在三个地点,与土壤形成和保护ES有关的两个变量,凋落物覆盖量和气土覆盖量随收获强度的增加而降低。我们得出的结论是,对薪柴生产的灌木林管理可以增强生物多样性而不会损害某些重要的生态系统。应根据现场条件确定收获强度,并预测对生物多样性,火灾和土壤形成及保护的影响。因为它减少了三个地方的燃料量(潜在地减少了火势蔓延),还减少了活性燃料中的水分含量(潜在地增加了可燃性)。在三个地点,与土壤形成和保护ES有关的两个变量,凋落物覆盖量和气土覆盖量随收获强度的增加而降低。我们得出的结论是,对薪柴生产的灌木林管理可以增强生物多样性而不会损害某些重要的生态系统。应根据现场条件确定收获强度,并预测对生物多样性,火灾和土壤形成及保护的影响。因为它减少了三个地方的燃料量(潜在地减少了火势蔓延),而且还降低了新鲜燃料中的水分含量(可能会增加可燃性)。在三个地点,与土壤形成和保护ES有关的两个变量,凋落物覆盖量和气土覆盖量随收获强度的增加而降低。我们得出的结论是,对薪柴生产的灌木林管理可以增强生物多样性而不会损害某些重要的生态系统。应根据现场条件确定收获强度,并预测对生物多样性,火灾和土壤形成及保护的影响。我们得出的结论是,对薪柴生产的灌木林管理可以增强生物多样性而不会损害某些重要的生态系统。应根据现场条件确定收获强度,并预测对生物多样性,火灾和土壤形成及保护的影响。我们得出的结论是,对薪柴生产的灌木林管理可以增强生物多样性而不会损害某些重要的生态系统。应根据现场条件确定收获强度,并预测对生物多样性,火灾和土壤形成及保护的影响。
更新日期:2020-07-20
down
wechat
bug