Volume 25, Issue 76 (3-2025)                   jgs 2025, 25(76): 308-325 | Back to browse issues page

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Asgari S, razi T, Jafari M, noroozi A A. (2025). The effects of meteorological drought on oak forest dieback in Ilam province. jgs. 25(76), 308-325. doi:10.61186/jgs.25.76.1
URL: http://jgs.khu.ac.ir/article-1-3553-en.html
The effects of meteorological drought on oak forest dieback in Ilam province
Shamsallah Asgari * 1, Tayeb Razi2 , Mohamadreza Jafari3 , Ali Akbar Noroozi2
1- Assistant Prof, Soil Conservation and Watershed Management Research Department, Ilam Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Ilam, Iran, Assistant Prof, Soil Conservation and Watershed Management Research Department, Ilam Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Ilam, Iran , shamsasgari@yahoo.com
2- Associate Prof, Soil Conservation and Watershed Management Research Institute (SCWMRI), Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran, Associate Prof, Soil Conservation and Watershed Management Research Institute (SCWMRI), Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
3- Assistant Prof, Soil Conservation and Watershed Management Research Department, Ilam Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Ilam, Iran, Assistant Prof, Soil Conservation and Watershed Management Research Department, Ilam Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Ilam, Iran
Abstract:   (4394 Views)
Due to the significance of forests in both the natural and human environment, this study aims to investigate the impact of meteorological drought on oak forest dieback in Ilam province. Specifically, the study seeks to determine the relationship between Zagros Forest drought and droughts in this particular region. The analysis utilizes the Standard Precipitation Index (SPI) to identify the frequency of droughts during different time periods. The results indicate that the years 2007, 2008, 2011, 2015, and 2016 experienced the highest occurrence of droughts. Additionally, remote sensing data from MODIS images were employed to examine the trend in tree greenness (NDVI) from 2000 to 2016. The analysis reveals a significant correlation (R2 = 0.9999) between the greenness trend and the drought index (SPI). Moreover, a land survey of oak drying points and simulation using Landsat satellite images, with a 15×15 pixel output from GIS software, indicate that approximately 17,894 hectares of forests in the region experienced drying and destruction between 2000 and 2016. By combining the oak forest drying layer with the output layers derived from drought zoning, visual indicators were created, and statistical analysis was conducted for three 5-year time series. The results demonstrate a correlation coefficient of 96.6% and an explanation coefficient of R2 = 0.985 for the 2002-2006 time series, a correlation coefficient of 95.4% and an explanation coefficient of R2 = 0.980 for the 2007-2011 time series, and a correlation coefficient of 98.8% and an explanation coefficient of R2 = 0.995 for the 2012-2016 time series. These findings illustrate the influence of drought and its variations in terms of intensity and duration on oak forests in the Zagros region of Ilam. Based on the study results, it is predicted that if the drought persists with the same trend, approximately 1,118.4 hectares of oak forests in Ilam province will dry up and be destroyed annually.
Keywords: Precipitation, Drought, Oak Drying, SPI, NDVI
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Type of Study: Research | Subject: climatology
References
1. آسیایی، مهدی.(1385). تحلیل خشکسالی با استفاده از شاخص استاندارد شده بارش (SPI) (مطالعه موردی استان خراسان)، مجله علوم جغرافیایی، شماره 2 :122-145.
2. باعقیده، محمد.، علیجانی، بهلول.، ضیائیان، پرویز.(1389). بررسی امکان استفاده از شاخص NDVI در تحلیل خشکسالی‌های استان اصفهان، مطالعات جغرافیایی مناطق خشک، سال اول، شماره‌ 4 :16 -1.
3. فرج‌زاده، منوچهر.، احمدیان، کلثوم.(1393).تحلیل زمانی و مکانی خشکسالی با استفاده از شاخصSPI در ایران، مجله مخاطرات محیط طبیعی، سال سوم، شماره 4: 1-17.
4. مفاخری امید، خالدی شهریار، شمسی پور علی اکبر، فلاحی خوشجی مصطفی، کرمانی آذر.(1395). تحلیل خشکسالی با استفاده از شاخصNDVI در دشت قروه و دهگلان، نشریه تحقیقات کاربردی علوم جغرافیایی. ۱۳۹۵; ۱۶ (۴۱) :۷۷-۹۴.
5. میرجلیلی، علی‌بمان.، موسایی سنجره‌ای، محمد.، زارع زاده مهریزی، شهاب الدین.(1392). بررسی آثار خشکسالی و ترسالی بر تغییرات پوشش گیاهی در دو منطقه پخش سیلاب و مراتع شاهد هرات استان یزد، نشریه مرتع و آبخیزداری، مجله منابع طبیعی ایران، دوره ٦٦: ١٥٦-١٤٥.
6. میرموسوی، سیدحسین.، کریمی، حمیده.(1392). مطالعه‌ی اثرات خشکسالی بر روی پوشش گیاهی با استفاده از تصاویر سنجنده‌ی M‌ODIS، مورد: استان کردستان، جغرافیا و توسعه، شماره 31: 76-57.
7. نصرالهی محمد.، خسروی حسن.، مقدم‌نیا علیرضا.، ملکیان آرش.(1394). ارزیابی شاخص خطر خشکسالی استان سمنان با استفاده از نمایهSPI، نشریه هواشناسی کشاورزی، 3 (1) : 57- 66.
8. نبی زاده بلخکانلو عادل، حجازی زاده زهرا، ضیائیان فیروزآبادی پرویز.(1397). ارزیابی وضعیت دمایی پوشش گیاهی (VTCI) برای پایش خشکسالی در حوضه آبریزسیمینه رود دریاچه ارومیه با استفاده از تصاویر ماهوار MODIS ، نشریه تحقیقات کاربردی علوم جغرافیایی. ۱۳۹۷; ۱۸ (۵۰) :۱۲۹-۱۳۹.
9. Assal, T. J., Anderson, P. J., Sibold, J., (2016), Spatial and temporal trends of drought effects in a heterogeneous semi-arid forest ecosystem. Forest Ecology and Management, 365: 137-151. [DOI:10.1016/j.foreco.2016.01.017]
10. Baguskas, S. A., Peterson, S. H., Bookhagen, B., Still, C. J., (2014), Evaluating spatial patterns of droughtinduced tree mortality in a coastal California pine forest. Forest Ecology and Management, 315: 43-53. [DOI:10.1016/j.foreco.2013.12.020]
11. Baaghideh, M., Alijani, B., Ziaian, P., (2011), Investigating the Possibility of Use of NDVI Index in Drought Analysis in Isfahan Province, Geographical Studies of Aridlands, 4:1-16.
12. Birtwistle, A. N., Laituri, M., Bledsoe, B., Friedman, J. M., (2016), Using NDVI to measure precipitation in semi-arid landscapes. Journal of Arid Environments, 131: 15-24. [DOI:10.1016/j.jaridenv.2016.04.004]
13. Dorman, M., Svoray, T., Perevolotsky, A., Sarris, D., (2013), Forest performance during two consecutive drought periods: diverging long-term trends and short-term responses along a climatic gradient. Forest Ecology and Management, 310: 1-9. [DOI:10.1016/j.foreco.2013.08.009]
14. Edossa, D.C., M.S. Babel and A.D. Guota, (2010), Drought analysis in the Awash River basin, Ethiopia. Water Resources Management, 24: 1441-1460. [DOI:10.1007/s11269-009-9508-0]
15. Ghorbani Aghdam, M., Y. Dinpazhuh, A. Fakherifard and S. Darbandi, (2012), Regionalization of Urmia Lake basin from the view of drought using factor analysis. Journal of Water and Soil, 26: 1268-1276 (in Persian).
16. Hogg,E.H., Brandt,J. P., Michaelian, M.,(2008), Impacts of a regional drought on the productivity, dieback, and biomass of western Canadian aspen forests, Canadian Journal of Forest Research, Vol 38(6), PP 1373-1384.. [DOI:10.1139/X08-001]
17. Hadian, F., Hosseini.,S., Seyedhasani, M., (2014), Monitoring Vegetation Changes Using Remote Sensing Techniques and rainfall data in northwestern of Iran. Journal of range and desert research, 21 (4): 756-768 (In Persian).
18. Hamzehpour, M., Kia-daliri,H., Bordbar, K., (2011), Preliminary study of manna oak ( Quercus brantii Lindl.) tree decline in Dashte-Barm of Kazeroon, Fars province. Iranian Journal of Forest and Poplar Research, 19 (2): 352-363 (In Persian).
19. Funk, C., Budd, M. E., (2009), PhenologicallyTuned MODIS NDVI-based production nomaly estimates for Zimbabwe, Remote Sensing of Environment, 113. [DOI:10.1016/j.rse.2008.08.015]
20. Klos, RJ., Wang, GG., Bauerle, WL., Rieck, JR., (2009), Drought impact on forest growth and mortality in the southeast USA: an analysis using Forest Health and Monitoring data, Ecological Applications,Vol 19: PP 699-708. [DOI:10.1890/08-0330.1] [PMID]
21. Kampragou, E., S. Apostolaki, E. Manoli, j. Froebrich, D., (2011), Towards the harmonization of water-related policies for managing drought risks across the EU. Environmental Science and Policy, 14(7): 815-824. [DOI:10.1016/j.envsci.2011.04.001]
22. Law, B.E., (2014), Regional analysis of drought and heat impacts on forests: current and future science directions, Global Change Biology, Vol 20: PP 3595-3599. [DOI:10.1111/gcb.12651] [PMID]
23. Saatchi , S., et al., (2012), Persistent effects of a severe drought on Amazonian forest canopy, Proceedings of the National Academy of Sciences, vol. 110: PP 565-570. [DOI:10.1073/pnas.1204651110] [PMID] []
24. Shamsipour, A. A. and AlaviPanah, S. K., Mohammadi, H., (2011), Efficiency of vegetation and thermal indices of NOAA-AVHRR satellite in ecological drought analysis of Kashan region. Iranian Journal of Range and Desert Research, 17(3): 445-465.
25. Mishra A.K., and Singh V.P., (2010), A review of drought concepts. Journal of Hydrology, 391: 202-216. [DOI:10.1016/j.jhydrol.2010.07.012]
26. Moradi, H.R., Rajabi, M., Faragzadeh, M., (2011), Investigation of meteorological drought characteristics in Fars province, Iran, Catena, 84(2) pp: 35-46. [DOI:10.1016/j.catena.2010.08.016]
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This work is licensed under a Creative Commons — Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)