Quantitative study of spatiotemporal changes in ecology to monitor land degradation in Alborz Province.
| Title: | Quantitative study of spatiotemporal changes in ecology to monitor land degradation in Alborz Province. |
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| Authors: | N. Mostafavi, Gh. Zehtabian, H. Azarnivand, H. Keshtkar, Hassan Khosravi |
| Source: | Desert, Vol 29, Iss 1, Pp 21-36 (2024) |
| Publisher Information: | University of Tehran, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Agriculture LCC:Ecology |
| Subject Terms: | rsei, remote sensing, land degradation, alborz province, Agriculture, Ecology, QH540-549.5 |
| More Details: | The expansion of human activities has caused widespread disturbances in ecosystems worldwide, necessitating the development of effective tools to monitor and quantify these changes. Remote sensing stands as a powerful tool for monitoring and quantifying ecological changes over time and space. In this study, a remote sensing-based ecological index (RSEI) was used to investigate land degradation and desertification in Alborz province during the period 2000-2020. After examining land use changes, the trend of RSEI outputs was evaluated using the Mann-Kendall test and Theil-Sen estimator. The examination of land use changes during the period 2000-2020 showed that barren lands, rangelands, shrublands and forests decreased by 2.30%, 6.25%, 1.53%, and 0.18%, respectively, while crop lands, built-up lands, and dam increased by 8.23%, 1.85%, and 0.18%, respectively. The analysis of the trend of changes in the RSEI using the Mann-Kendall test showed that the changes in 16.27% of Alborz province was decreasing, of which about 0.5% was statistically significant. This decreasing trend was also shown by the Theil-Sen estimator in 13% of this region. The results of this study using the Mann-Kendall test also showed that the RSEI values increased in 80.73% of the study area, of which about 4% increased significantly. The analysis of changes in this index using the Theil-Sen estimator showed that this index increased in 87% of this region. This study suggests that the RSEI approach performs effectively in quantifying and detecting ecological changes and, as a result, land degradation at various scales. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2008-0875 2345-475X |
| Relation: | https://jdesert.ut.ac.ir/article_97915_6844293600caf6173cd36b038fabf2a4.pdf; https://doaj.org/toc/2008-0875; https://doaj.org/toc/2345-475X |
| DOI: | 10.22059/jdesert.2024.97915 |
| Access URL: | https://doaj.org/article/fd433f836df84cc19f6fcfba03b1ee71 |
| Accession Number: | edsdoj.fd433f836df84cc19f6fcfba03b1ee71 |
| Database: | Directory of Open Access Journals |
| ISSN: | 20080875 2345475X |
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| DOI: | 10.22059/jdesert.2024.97915 |
| Published in: | Desert |
| Language: | English |