year 15, Issue 4 (In Press (Winter) 2025)                   E.E.R. 2025, 15(4): 0-0 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Mendeley  
Zotero  
RefWorks
Ghasedi-Yousefabad F, Rezaei H, Shahbazi F, Zarehaghi D. Using Digital Maps of Soil Organic Carbon and Clay for Evaluating Soil Structure Stability. E.E.R. 2025; 15 (4)
URL: http://magazine.hormozgan.ac.ir/article-1-893-en.html
Using Digital Maps of Soil Organic Carbon and Clay for Evaluating Soil Structure Stability
Fatemeh Ghasedi-Yousefabad , Hossein Rezaei * , Farzin Shahbazi , Davoud Zarehaghi
University of Tabriz , hossenrezaei@tabrizu.ac.ir
Abstract:   (8 Views)
Aggregate stability is an index for evaluating soil quality and the main factor of land stability. Since measuring this index even in vast areas is difficult, using the estimated indices would facilitate studies. In the present research, which was conducted in northwestern Iran, the index, as mentioned above, was calculated using the ratio of soil organic carbon (SOC) to clay. To investigate this, the proposed index was primarily provided for the entire study area at five standardized depth intervals based on the GlobalSoilMap protocol. Additionally, the aggregate stability index (ASI) in the laboratory was also determined for 15 samples to conduct statistical analyses regarding a complete randomized factorial design at the same five standard depths. The results revealed that with depth increment, SOC decreased while clay and aggregate stability increased. The statistical analyses showed that there was no significant difference between directly measured ASI and the data extracted from digital maps. Therefore, the final digital map prepared by integrating SOC and clay demonstrates an acceptable result regarding soil aggregate stability at the studied standardized depths. Finally, it can be concluded that the usage of popular indices with a focus on the importance of contributed environmental covariates for mapping base characteristics responds to soil surveying demands. The present research revealed the crucial role of base maps for preparing key indices to improve the efficacy of soil resources management observations.      
 
Keywords: Digital maps, Land sustainability, Organic carbon, Soil structure
     

Received: 2025/05/25
Add your comments about this article : Your username or Email:
CAPTCHA
Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.