秘鲁阿亚库乔卡奇河流域水资源生态系统服务的经济评估

Manglar Pub Date : 2023-10-09 DOI:10.57188/manglar.2023.028
Manuel Ccasani Sierra, Carlos Enrique Orihuela Romero, JORGE RICARDO GONZALES CASTILLO, Pelayo Hilario Valenzuela
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引用次数: 0

摘要

了解生态系统服务的经济价值,就有可能确定生态系统及其服务的重要性,从而做出对社会福祉有影响的更好决策。本研究的目的是估算来自Cachi流域的水生态系统服务(ES)的经济价值。本研究的新颖之处在于对条件价值法(CVM)进行了全面的研究,对支付意愿(WTP)和接受意愿(WTA)进行了估算。根据调查,Cachi盆地90.6%的生产者为WTP, 9.4%的生产者因经济原因不为WTP。另一方面,高安第斯地区92%的居民是WTA,只有8%的人由于与阿亚库乔地区政府的分歧而不接受经济激励。logit模型的计量结果表明,生产者对农业水体水文生态系统的保护是WTP,最高为S/ 74.87/ha/campaign (19.50 USD)。而Cachi盆地高原地区的居民则是WTA,最低金额为S/162.05 ha/bofedal/月(42.21美元),以换取保护Cachi盆地源头的湿地和牧场。得出结论:生产者是为了获得农业用水供应的连续性和质量的WTP,生产者是为了保护和恢复自然水源的WTA。将这些成果付诸实践将有助于安第斯高原地区供水的可持续性,保证在干旱时期向今世后代提供水资源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Valoración económica de los servicios ecosistémicos del recurso hídrico de la cuenca del río Cachi, Ayacucho, Perú
Knowing economic value of ecosystem services makes it possible to identify the importance of ecosystems and their services, with which better decisions that have an impact on social well-being are expected. The objective of the study was to estimate the economic value of water ecosystem services (ES), from the Cachi basin.The novelty of the study lies in the application of a complete study of the Contingent Valuation Method (CVM), the Willingness to Pay (WTP) and the Willingness to Accept (WTA) were estimated. According to surveys carried out, 90.6% of the producers in the Cachi basin are WTP, 9.4% are not WTP for economic reasons. On the other hand, 92% of the inhabitants of the high Andean areas are WTA, only 8% do not accept an economic incentive, due to disagreements with the Regional Government of Ayacucho. The econometric results of the logit model showed that the producers are WTP, at most S/ 74.87/ha/campaign (19.50 USD), for the conservation of the hydrological ES for agricultural porpuses. While the inhabitants of the highland areas of the Cachi basin are WTA, the minimum amount of S/162.05 ha/bofedal/monthly (42.21 USD), in exchange for conserving the wetlands and pastures of the Cachi basin headwaters. It is concluded, the producers are WTP for obtaining continuity and quality of the supply of water for agricultural use, and they are WTA for the conservation and recovery of natural water sources. Putting these results into practice would contribute to the sustainability of the water supply in the high Andean areas, guaranteeing the provision of water resources to current and future generations in times of drought.
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