ABSTRACT

Introduction: Coastal wetlands are currently threatened by human drivers, such as agriculture, infrastructure development, and urban sprawl. Pressures on these ecosystems disturb their morphology and biogeochemical cycles, resulting in the degradation of ecosystem services. However, little has been done to understand the wetland response to identify proper conservation strategies. Along the Peruvian coast, wetlands present a diversity of landscapes that face similar threats and pressures; however, the ecosystem response in each one may be different.Objective: This study aims to assess the environmental impacts on ecosystem services based on the understanding of geomorphic features and the status of the Eten coastal wetland (Peru).Methods: The methodology combines the application of open-source GIS tools and the collection of field data to characterize the geomorphic settings and to analyze the changes in environmental parameters. Then, the main threats and pressures on the Eten wetland are defined and related to impacts on ecosystem services using a cause-effect model.Results: Overall, the results indicated that the river plays a vital role in defining the wetland landscape and functions. The biological diversity of aquatic habitats is disturbed by hydraulic structures and agricultural activities. Current land use affects supporting and regulation services, such as water regulation.

摘要

简介：沿海湿地目前正受到人类驱动因素的威胁，例如农业、基础设施发展和城市扩张。这些生态系统面临的压力扰乱了它们的形态和生物地球化学循环，导致生态系统服务退化。然而，在了解湿地响应以识别适当的保护策略方面做得很少。沿着秘鲁海岸，湿地呈现出各种面临类似威胁和压力的景观；然而，每个生态系统的反应可能不同。目的：本研究旨在基于对地貌特征和伊顿海岸湿地（秘鲁）现状的理解，评估环境对生态系统服务的影响。方法：该方法结合了开源 GIS 工具的应用和现场数据的收集，以表征地貌设置并分析环境参数的变化。然后，使用因果模型定义伊顿湿地的主要威胁和压力，并将其与对生态系统服务的影响相关联。结果：总体而言，结果表明河流在定义湿地景观和功能方面起着至关重要的作用。水生栖息地的生物多样性受到水利结构和农业活动的干扰。当前的土地利用影响支持和调节服务，例如水调节。