National Institute of Agricultural Technology (INTA) & National Council for Scientific and Technical Research (CONICET), Argentina; Institute for Higher Space Studies "Mario Gulich" (CONAE & UNC) Córdoba, Argentina.
Lab. of Landscape Ecology, Dept. of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy.
J Environ Manage. 2021 Feb 15;280:111714. doi: 10.1016/j.jenvman.2020.111714. Epub 2020 Dec 7.
Human decisions, policies, and management strategies play an important role in structuring landscape patterns in a metropolitan area. Land-use/land-cover (LULC) changes can be considered probably the most important factor affecting the environment and the maintenance of landscape service flow. In particular, processes such as agricultural intensification, deforestation, urbanization and industrialization affect landscape heterogeneity in terms of composition and configuration. However, the multifunctional aspect of LULC as well as traditional agricultural practices can contribute to the maintenance of landscape service flow. This research aims to analyze and assess: (1) LULC dynamics and change from 1988 to 2019 within the metropolitan area of Córdoba (Argentina); (2) the effect of this change on landscape composition and configuration; (3) the flow of landscape services from 1988 to 2019, with the identification of hot-spots of landscape service provision. To analyze LULC dynamics and change within the study area, three Landsat images were utilized, while change detection analysis has been performed to identify the areas most affected by changes, the spatial distribution of change and the change trajectories of LULC classes in terms of landscape composition and configuration. Finally, the valuation of landscape service flow has been carried out by placing an economic value on the LULC classes, through the use of proxies. LULC pattern change has resulted in the expansion of extensive agriculture. The total variation from 1988 to 2019 has highlighted a significant reduction of Horticulture, Forests, and Grasslands, which have been converted into other classes (Urban and Extensive Agriculture). This conversion of LULC classes has had profound effects on landscape service flow, which guarantees the well-being of local communities. This research has contributed to the knowledge of where the hot-spots of landscape service' provision are located by helping landscape managers to identify suitable local policies able to preserve them, thus avoiding their loss, and enhancing landscape integrity, functionality, and resilience.
人类决策、政策和管理策略在构建大都市地区的景观格局方面发挥着重要作用。土地利用/土地覆被(LULC)变化可以被认为是影响环境和维持景观服务流的最重要因素。特别是,农业集约化、森林砍伐、城市化和工业化等过程会影响景观的组成和配置的异质性。然而,LULC 的多功能性以及传统农业实践可以有助于维持景观服务流。本研究旨在分析和评估:(1)1988 年至 2019 年期间科尔多瓦大都市区的土地利用/土地覆被动态变化;(2)这种变化对景观组成和配置的影响;(3)1988 年至 2019 年期间的景观服务流,确定景观服务提供的热点。为了分析研究区内的土地利用/土地覆被动态变化,利用了三张 Landsat 图像,通过变化检测分析,确定了受变化影响最大的区域、变化的空间分布以及土地利用/土地覆被类别的变化轨迹,从景观组成和配置的角度来看。最后,通过使用代理对土地利用/土地覆被类进行经济价值评估,对景观服务流进行了评估。土地利用/土地覆被格局的变化导致了粗放农业的扩张。1988 年至 2019 年的总变化突出了园艺、森林和草地的显著减少,这些土地已经转化为其他类别(城市和粗放农业)。土地利用/土地覆被类别的这种转化对景观服务流产生了深远的影响,保障了当地社区的福祉。本研究通过帮助景观管理者确定能够保护这些热点的适当地方政策,从而避免其流失,并增强景观的完整性、功能和恢复力,有助于了解景观服务提供的热点在哪里。