Monitoring the Impacts of Climate Change on the Structural Dynamics of Aquatic Ecosystems: A Remote Sensing-Based Assessment

سال انتشار: 1404
محل انتشار: بیست و سومین کنفرانس بین المللی انجمن هوافضای ایران
کد COI اختصاصی: AEROSPACE23_289
زبان مقاله: انگلیسی
تعداد مشاهده: 99

نویسندگان

Department of Geography Education, Farhangian University, Tehran, Iran

چکیده

Wetlands are critical ecosystems delivering essential services, including carbon sequestration, flood regulation, nutrient cycling, and biodiversity conservation. However, the escalating frequency and severity of climate change-induced droughts pose a profound threat to their ecological integrity and functionality. This study evaluates long-term changes in water extent and vegetation cover of the Choghakhor wetland in southwestern Iran, analyzing their correlation with drought severity over a ۲۵-year period (۱۹۹۵-۲۰۱۹) using remote sensing (RS) and geographic information systems (GIS) methodologies. Findings reveal a significant decline in annual precipitation post-۲۰۰۷, coupled with heightened drought severity and frequency, particularly after ۲۰۰۸. Concurrently, a marked reduction in the wetland's water extent was observed, accompanied by pronounced fluctuations in vegetation cover. Vegetation dynamics exhibited a strong correlation with surface water extent, highlighting their interdependence. These results establish a clear linkage between climate variability and wetland degradation, identifying prolonged droughts as a primary driver of structural ecosystem changes. This study underscores the urgent need for adaptive management strategies to mitigate climate change impacts and safeguard wetland integrity.

کلیدواژه ها

Hydro-ecological response, Land cover transformation, Change detection, Adaptive wetland management

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