The aim of my dissertation is to emphasize the significance of environmental issues, using the disappearance of Lake Azzurro in Motta as a starting point. To achieve this, the thesis explores and categorizes the ecosystem services offered by the lake, while also providing an overview of the climate in the Valchiavenna area. Ecosystem services encompass the benefits provided by ecosystems to humanity, both directly and indirectly. These services take various forms and contribute to human well-being. They can be classified into four categories: provisioning services, regulating services, supporting services, and cultural services. In the region of Lake Azzurro, cultural services are particularly prominent due to the lake’s status as a renowned tourist destination for the entire Valchiavenna area. Aside from providing aesthetic and recreational experiences, the lake served as inspiration for the famous poet Giosuè Carducci, who dedicated a poem to it in 1888. To evaluate the ecosystem services provided by the lake, two surveys were conducted. The first survey aimed to collect public opinions on issues related to the disappearance of Lake Azzurro, addressing a broader scope. The second survey sought to identify and comprehend the cultural ecosystem services associated with the alpine lakes of Valchiavenna. The distinctive feature of Lake Azzurro lies in the fact that lacks affluents and effluents and inflow depends on precipitation and snowmelt while outflow on evaporation. Consequently, a climate analysis was conducted to assess the correlation between the reduction in the lake’s water level, the rise in temperatures, and the decrease in precipitation. This analysis utilized historical data from ARPA Lombardy and the ERA5-Land reanalysis dataset. The climate analysis reveals a clear correlation between the lake’s disappearance and the temperature increase, a phenomenon particularly pronounced in 2022, which was the hottest year recorded in the past 73 years. It is crucial to emphasize that the disappearance of Lake Azzurro in Motta underscores the urgency of effectively addressing environmental issues. The loss of such an important ecosystem, like the lake, significantly impacts the provision of ecosystem services to the local community and the entire region. Preserving and managing the lake sustainably are essential to ensure environmental balance and enhance the quality of life for present and future generations.
Il seguente elaborato mira a evidenziare l’importanza delle problematiche ambientali, prendendo come spunto la scomparsa del Lago Azzurro di Motta. A tal fine, si mette in luce e si classificano i servizi ecosistemici forniti dal lago, nonché si fornisce un quadro climatico dell’area della Valchiavenna. I servizi ecosistemici rappresentano i benefici che gli ecosistemi offrono all’umanità, sia in modo diretto che indiretto. Essi si manifestano attraverso varie forme di supporto per il benessere umano. Questi servizi possono essere suddivisi in quattro categorie: servizi di approvvigionamento, servizi di regolazione, servizi di supporto e servizi culturali. Nella zona del Lago Azzurro, sono presenti soprattutto i servizi culturali, poiché il lago è una rinomata meta turistica per tutta l’area della Valchiavenna. Oltre a offrire un’esperienza estetica e ricreativa, il lago ha ispirato il famoso poeta Giosuè Carducci, che nel 1888 gli dedicò una poesia. Per ottenere una classificazione dei servizi ecosistemici forniti dal lago, sono state condotte due indagini. La prima indagine, di natura più generale, ha lo scopo di raccogliere le opinioni delle persone in merito alle problematiche correlate alla scomparsa del Lago Azzurro. La seconda indagine, ha l’obiettivo di identificare e comprendere i servizi ecosistemici culturali correlati ai laghi alpini della Valchiavenna. La caratteristica distintiva del Lago Azzurro risiede nell’assenza di immissari ed emissari, il che implica che il lago dipenda esclusivamente dalle precipitazioni e dalle nevicate annuali per il suo approvvigionamento idrico. Di conseguenza, è stata condotta un’analisi di inquadramento climatico per determinare se la riduzione del livello del lago sia strettamente correlata all’aumento delle temperature e alla diminuzione delle precipitazioni. Per fare ciò sono state utilizzate le serie storiche di ARPA regione Lombardia ed il dataset di rianalisi ERA5-Land. Dall’analisi del contesto climatico emerge una chiara correlazione tra la scomparsa del lago e l’aumento delle temperature, fenomeno particolarmente evidente nell’anno 2022, considerato il più caldo registrato negli ultimi 73 anni. È importante sottolineare che la scomparsa del Lago Azzurro di Motta evidenzia l’urgenza d’ affrontare le problematiche ambientali in modo efficace. La perdita di un importante ecosistema come il lago ha un impatto significativo sui servizi ecosistemici forniti alla comunità locale e alla regione in generale. La preservazione e la gestione sostenibile sono essenziali per garantire un equilibrio ambientale e una migliore qualità della vita per le generazioni presenti e future.
The importance in preserving alpine Azzurro Lake as a natural resource in the context of climate change
TABORELLI, GIULIA
2022/2023
Abstract
The aim of my dissertation is to emphasize the significance of environmental issues, using the disappearance of Lake Azzurro in Motta as a starting point. To achieve this, the thesis explores and categorizes the ecosystem services offered by the lake, while also providing an overview of the climate in the Valchiavenna area. Ecosystem services encompass the benefits provided by ecosystems to humanity, both directly and indirectly. These services take various forms and contribute to human well-being. They can be classified into four categories: provisioning services, regulating services, supporting services, and cultural services. In the region of Lake Azzurro, cultural services are particularly prominent due to the lake’s status as a renowned tourist destination for the entire Valchiavenna area. Aside from providing aesthetic and recreational experiences, the lake served as inspiration for the famous poet Giosuè Carducci, who dedicated a poem to it in 1888. To evaluate the ecosystem services provided by the lake, two surveys were conducted. The first survey aimed to collect public opinions on issues related to the disappearance of Lake Azzurro, addressing a broader scope. The second survey sought to identify and comprehend the cultural ecosystem services associated with the alpine lakes of Valchiavenna. The distinctive feature of Lake Azzurro lies in the fact that lacks affluents and effluents and inflow depends on precipitation and snowmelt while outflow on evaporation. Consequently, a climate analysis was conducted to assess the correlation between the reduction in the lake’s water level, the rise in temperatures, and the decrease in precipitation. This analysis utilized historical data from ARPA Lombardy and the ERA5-Land reanalysis dataset. The climate analysis reveals a clear correlation between the lake’s disappearance and the temperature increase, a phenomenon particularly pronounced in 2022, which was the hottest year recorded in the past 73 years. It is crucial to emphasize that the disappearance of Lake Azzurro in Motta underscores the urgency of effectively addressing environmental issues. The loss of such an important ecosystem, like the lake, significantly impacts the provision of ecosystem services to the local community and the entire region. Preserving and managing the lake sustainably are essential to ensure environmental balance and enhance the quality of life for present and future generations.| File | Dimensione | Formato | |
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https://hdl.handle.net/10589/207533