Valuation and management of desert ecosystems and their services

IF 6.1 2区 环境科学与生态学 Q1 ECOLOGY
Haojie Chen , Robert Costanza
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Abstract

Based on different definitions, deserts may constitute 13% to 33% of the global terrestrial surface. This is larger than the area of tropical forests and all types of wetlands combined. However, desert ecosystems are among the least studied in terms of their ecosystem services (ES), especially those that arise from species and processes unique to deserts. There are numerous research gaps that need to be filled including: (1) ignorance of unique desert ES, as well as deserts’ special effects on ES; (2) limited application of sophisticated approaches for economic valuation of desert ES; and (3) lack of diverse approaches to values and valuation. Moreover, payment for ecosystem services (PES) schemes are often used to combat desertification rather than for conserving well-functioning deserts. Valuation of desert ES is crucial to implementation of PES through raising awareness of overlooked deserts, motivating investment, designing payment amounts, and estimating the social benefit-cost ratios of payments. In addition to market-based voluntary PES, common asset trusts (CATs) following Ostrom’s eight core design principles may also contribute to sustainable management of desert ecosystems. Future research should explore unique desert ES, investigate the relationships between desert ES and geosystem services, improve accuracy of economic valuation of desert ES, and integrate diverse perspectives of values. The research results may potentially aid in both combatting desertification and conserving important deserts.

沙漠生态系统及其服务的估值和管理
根据不同的定义,沙漠可能占全球陆地面积的 13% 到 33%。这比热带森林和所有类型湿地的面积总和还要大。然而,就生态系统服务(ES)而言,沙漠生态系统是研究最少的生态系统之一,特别是那些由沙漠特有物种和过程产生的生态系统服务。有许多研究空白需要填补,其中包括:(1)对沙漠独特的生态系统服务以及沙漠对生态系统服务的特殊影响一无所知;(2)对沙漠生态系统服务经济估值的复杂方法应用有限;以及(3)缺乏多样化的价值和估值方法。此外,为生态系统服务付费(PES)计划通常用于防治荒漠化,而不是保护功能良好的沙漠。通过提高人们对被忽视的沙漠的认识、激励投资、设计付款额度以及估算付款的社会效益-成本比率,沙漠生态系统服务的估值对于生态系统服务付费的实施至关重要。除基于市场的自愿生态系统服务补偿外,遵循奥斯特罗姆八项核心设计原则的共同资产信托(CAT)也可能有助于沙漠生态系统的可持续管理。未来的研究应探索独特的荒漠生态系统服务,调查荒漠生态系统服务与地理系统服务之间的关系,提高荒漠生态系统服务经济估值的准确性,并整合不同的价值视角。研究成果可能有助于防治荒漠化和保护重要沙漠。
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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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