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Disruption of traditional land use regimes causes an economic loss of provisioning services in high-mountain grasslands
Ecosystem Services ( IF 7.6 ) Pub Date : 2020-10-29 , DOI: 10.1016/j.ecoser.2020.101200
María Durán , Rosa M. Canals , José L. Sáez , Vicente Ferrer , Fernando Lera-López

Mountain ecosystems face many challenges related to global change. Most high-altitude grasslands in the Pyrenees, despite representing valuable assets recognised in the European conservation heritage, are at risk due to the decline of traditional extensive ranging. This research intends to quantify economically the loss of the provisioning service of high-quality food for livestock of an upland area on the western side of the range. The area is experiencing degradation due to the expansion of the native tall-grass Brachypodium rupestre, favoured by disruption of traditional grazing and anthropogenic fire regimes. We implement the substitution economic approach and use floristic and husbandry data to determine that the loss of food rations for livestock results in an unitary cost of 107 €.ha−1.year−1, amounting to 21146 € for the whole degraded area, according to the most conservative estimate. The study also finds evidence that the decline in grassland value is closely associated with the digestibility to herbivores of B. rupestre during the growing season. This approach may be an effective tool to raise awareness of the problem among local and regional stakeholders and encourage further environmental actions to prevent the degradation.



中文翻译:

传统土地使用制度的破坏导致高山区草地的供应服务经济损失

山区生态系统面临与全球变化有关的许多挑战。比利牛斯山脉的大多数高海拔草原,尽管代表了欧洲保护遗产中公认的宝贵资产,但由于传统大范围耕地的减少而处于危险之中。这项研究旨在从经济上量化该范围西侧高地地区牲畜优质食品供应服务的损失。该地区正经历着自然退化,这是由于原生高草短枝短尾蒲Brachypodium rupestre)的扩张,而传统放牧和人为的火源破坏了这一优势。我们采用替代经济方法,并使用植物和畜牧业数据来确定牲畜的口粮损失导致单位成本为107€.ha -1.year -1,根据最保守的估计,整个退化区域的总价值为21146€。该研究还发现证据表明,草地价值的下降与生长季节中卢氏双歧杆菌对草食动物的可消化性密切相关。这种方法可能是一种有效的工具,可以提高地方和区域利益相关者对该问题的认识,并鼓励采取进一步的环境行动来防止退化。

更新日期:2020-10-30
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