Monitoring Soil Degradation Processes for Ecological Compensation in the Izmir Institute of Technology Campus (Turkey)

Abstract

Monitoring changing environmental conditions for short-term periods is a key aspect of adaptive urban planning. Unfortunately, the official environmental datasets are often produced at too large time intervals, and sometimes the speed of urban transformation requires real-time monitoring data. In this work we employed ESRI ArcGIS (ver. 10.8.1) to process two normalized difference vegetation indices for the campus area of the Izmir Institute of Technology (Turkey). The area of this campus constitutes an optimal site for testing whether alterations to the soil due to excavation and new construction can be monitored in small areas of land. We downloaded two different Sentinel acquisitions from the Copernicus ONDA DİAS platform: one taken on 28 March 2021 and the second taken on 13 March 2022. We processed the images while elaborating the normalized difference vegetation index for both years and compared them. Results demonstrate that all major and minor soil degradations on the campus during the intervening year were detected and empirically quantified in terms of NDVİ reduction (abrupt changes). These findings confirm that detailed seasonal environmental monitoring of every part of the world is now possible using semi-automatic procedures to process original Sentinel data and recommend site-specific ecological compensation measures.

De-Sealing Reverses Habitat Decay More Than Increasing Groundcover Vegetation

“…In our previous study of the IZTECH campus area, we used NDVI as a proxy for other soil degradation processes that occurred between 2021 and 2022. In that study, the maximum NDVI reduction (−32.9% to −29.4%) was recorded by surface sealing; compaction recorded a medium NDVI reduction (−24.3% to −26.6%), and erosion recorded the least reduction in NDVI (−14.5% to −17.2%) [43].…”

“…The construction of large roads has caused a corresponding increase in pollutants that wash off roads during rain events and are carried into bio- Our specific AOI is the campus of the Izmir Institute of Technology (IZTECH), a research institute and public university established in 1992 and located on approximately 150 hectares near the village of Gulbahce in the Izmir province. The built-up area of the campus is approximately 8.5 hectares, and it is constructed on the eastern slope of a rocky mountain covered with maquis [43]. The stratigraphy is dominated by a Miocene volcanosedimentary succession, including several sedimentary and volcanic units developed on top of the basement rocks of the Karaburun Platform and Bornova Flysch Zone [44,45].…”

Analisis Model Spasial Kondisi Lahan Daerah Aliran Sungai (DAS): Mendukung Pengambilan Keputusan Berkelanjutan di DAS Paguyaman, Indonesia

“…Gholizadeh & Kopakova , (2019) menggarisbawahi potensi teknik optik proksimal dan penginderaan jauh untuk mengidentifikasi perubahan tanaman yang disebabkan oleh pencemaran tanah. Salata & Couch, (2022) menggunakan indeks vegetasi perbedaan ternormalisasi untuk memantau kerusakan tanah di suatu wilayah tertentu, sedangkan Almalki et al, (2022) mengkaji penggunaan teknologi penginderaan jauh untuk memantau dan memetakan perubahan tutupan tanaman di lingkungan kering dan semi-kering.…”