美国东南部森林生态系统服务的收益效率分析

IF 6.1 2区 环境科学与生态学 Q1 ECOLOGY
Andres Susaeta , Ester Gutiérrez , Sebastián Lozano
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引用次数: 0

摘要

对美国东南部长叶松(Pinus palustris.Mill)森林的技术、配置和利润效率进行了估计,这些森林生产木材、树木生物多样性、水和碳固存等生态系统服务。本研究采用了一种非参数两阶段方法,包括数据包络分析(DEA)和稳健线性回归。利用1977年至2015年森林调查与分析(FIA)项目的数据,覆盖2282个林地,大多数长叶松林地块在生态系统服务生产方面技术和利润效率低下。利润的低效率似乎更多地归因于配置的低效率,而不是技术的低效率。此外,通过稳健线性回归评估了各种外源变量对低效率得分的影响。研究结果表明,私有制下的森林干扰可以降低技术效率。令人惊讶的是,与随机前沿分析(SFA)结果相反,在存在异常值/有影响的观测值的情况下,考虑地理因素、干扰、所有权、管理和时间的稳健回归模型表明,干扰往往会增加技术效率。因此,旨在模仿或复制森林干扰影响的森林管理战略可能会损害生态系统服务提供的效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Profit-efficiency analysis of forest ecosystem services in the southeastern US

Technical, allocative, and profit efficiency of longleaf pine (Pinus palustris. Mill) forests in the southeastern United States, producing ecosystem services such as timber, tree biodiversity, water, and carbon sequestration, were estimated. This study employed a non-parametric two-stage approach involving data envelopment analysis (DEA) and robust linear regression. Utilizing data from the Forest Inventory and Analysis (FIA) program spanning 1977–2015 and covering 2,282 forest plots, most longleaf pine forest plots were technically and profit inefficient in ecosystem service production. The inefficiency in profit appeared more attributable to allocative rather than technical inefficiency. Furthermore, the impact of various exogenous variables on inefficiency scores was assessed through robust linear regression. The findings suggested that forest disturbances under private ownership could reduce technical inefficiency. Surprisingly, contrary to stochastic frontier analysis (SFA) results, the robust regression model, considering geographical factors, disturbance, ownership, management, and time in the presence of outliers/influential observations, indicated that disturbances often increased technical inefficiency. Therefore, forest management strategies aiming to mimic or replicate the effects of forest disturbances might compromise the efficiency of ecosystem service provision.

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来源期刊
Ecosystem Services
Ecosystem Services ECOLOGYENVIRONMENTAL SCIENCES&-ENVIRONMENTAL SCIENCES
CiteScore
14.90
自引率
7.90%
发文量
109
期刊介绍: Ecosystem Services is an international, interdisciplinary journal that is associated with the Ecosystem Services Partnership (ESP). The journal is dedicated to exploring the science, policy, and practice related to ecosystem services, which are the various ways in which ecosystems contribute to human well-being, both directly and indirectly. Ecosystem Services contributes to the broader goal of ensuring that the benefits of ecosystems are recognized, valued, and sustainably managed for the well-being of current and future generations. The journal serves as a platform for scholars, practitioners, policymakers, and other stakeholders to share their findings and insights, fostering collaboration and innovation in the field of ecosystem services.
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