Document Type : Research Paper

Authors

1 Department of Reclamation of Arid & Mountain Regions, Faculty of Natural Resources, University of Tehran, Karaj, Iran

2 Water and Soil Conservation Engineering Department, Soil Conservation and Watershed Management Research Institute (SCWMRI), Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

10.22059/jrwm.2025.396695.1840

Abstract

Integrated rangeland ecosystem management is recognized as an effective strategy for improving vegetation cover, forage production, and enhancing sustainability in arid and semi-arid regions. In this study, the effects of various conservation and ecosystem restoration measures (including seeding, Transplanting, terracing combined with transplanting, contour banding with transplanting, pitting with seeding, and contour furrowing with transplanting) were investigated on vegetation characteristics and forage production in the rangelands of Vardij village, Tehran Province. Sampling was conducted systematically and randomly during the growing season using 4 m² plots along 100-meter transects. Vegetation characteristics were precisely recorded and the related data were analyzed. The results indicated that the aforementioned conservation measures had significant effects on vegetation variables, leading to a remarkable increase in vegetation canopy cover and a reduction in bare soil. The highest mean canopy cover (59.97%) and the lowest percentage of bare soil (7.93%) were observed in the transplanting treatment, whereas the control rangelands had the lowest canopy cover (23.2%) and the highest bare soil percentage (29.2%). Other methods, such as seeding and terrace transplanting, also showed positive effects on vegetation cover improvement. Regarding forage production, the transplanting treatment yielded the highest mean production (423 kg/ha), followed by seeding (367 kg/ha) and terrace transplanting (388 kg/ha). The control rangelands exhibited the lowest forage yield. These findings highlight the crucial role of conservation and restoration measures in enhancing vegetation cover and rangeland sustainability. Accordingly, it is recommended that future management plans utilize a combination of methods, including transplanting and seeding, to improve the quality and sustainability of rangeland ecosystems.

Keywords

Arzani, H. (2008). Evaluation of rangelands in different climatic regions. Research Institute of Forests and Rangelands, Tehran, 380 p.
Cai, D., Ge, Q., Wang, X., Liu, B., Goudie, A. S., & Hu, S. (2020). Contributions of ecological programs to vegetation restoration in arid and semiarid China. Environmental Research Letters15(11), 114046.
Dehdari, S., Armand, N., Faraji, M., Arman, N., & Mosaviyan, J. (2018). The effects of rangeland restoration practices on some soil and vegetation characteristics: Case study of Chahmary-Behbahan rangelands. Journal of Rangeland, 12(3), 305-315. (In Persian)
Eldridge, D. J., & Ding, J. (2023). Pitting fails to sustain increases in ecosystem structure in arid rangelands. Restoration Ecology, 31(6), e13929.
Eldridge, D. J., Bowker, M. A., Maestre, F. T., Roger, E., Reynolds, J. F., & Whitford, W. G. (2016). Ecological roles of biological soil crusts in drylands. Nature Reviews Earth & Environment, 1(1), 1-13.
Elyasi, S. (2023). Investigating the effects of restoration and improvement projects in Hamadan province rangelands. Journal of Natural Resource Management, 10(4), 201-215. (In Persian)
Ghasemi Aryan, Y., Azarnivand, H., Motamedi, J., & Moghiminejad, F. (2024). Appropriate site location, range improvment and management operations in Sabzevar Chah Talkh watershed. Iranian Journal of Range and Desert Research31(1), 15-27. (In Persian)
Gheytouri, M., Heshmati, M., & Parvizi, Y. (2019). Effects of Range Improvement Practices on Vegetation (Case study: Naftkhane Qasreshirin Plain of Kermanshah Province, Iran). Iranian Journal of Range and Desert Research26(3), 772-785. (In Persian)
Gholipour soloshi, M., Dianati Tilaki, G. A., & Abedi, M. (2022). Comparison of Vegetation Characteristics under Three Management Treatments (Heavy Grazing, Exclusure and Exclusure with Restoration Practices) in Kiasar Chardange Rangeland of Sari. Iranian Journal of Applied Ecology, 11 (3), 61-76. (In Persian)
Habibzadeh, A., & Noroozi, A. (2022). The effect of rainfall harvesting systems on increasing rangeland vegetation. Watershed Engineering and Management, 14(1), 102-113. (In Persian)
Haddad, M., Strohmeier, S. M., Nouwakpo, K., Rimawi, O., Weltz, M., & Sterk, G. (2022). Rangeland restoration in Jordan: Restoring vegetation cover by water harvesting measures. International Soil and Water Conservation Research, 10(4), 610-622. (In Persian)
Herrick, J. E., Van Zee, J. W., Havstad, K. M., Burkett, L. M., & Whitford, W. G. (2010). Monitoring manual for grassland, shrubland and savanna ecosystems: Volume I. Quick start. USDA-ARS Jornada Experimental Range.
Iran Meteorological Organization [IMO] (2023). Climatic data (2000–2023) for Varjin region, collected from 8 adjacent stations: Karaj (Agriculture), Karaj, Chitgar, Tehran (Mehrabad), Tehran (Geophysics), Tehran (Shemiran), SiahBisheh, and Payam Airport. https://data.irimo.ir/
Jafari, A., Khosravanian, H. & Fakhri, F. (2012). Evaluation of flood spreading and closed treatment effecton vegetation changes in Tanghestan station of Bushehr province. Journal of Watershed Engineering and Management, 4(2), 103-110. (In Persian)
Jafarian, Z., & Mirjalili, A. (2017). The effect of contour furrow and pitting on increase of vegetation cover in rangelands (Case Study: Bolbol Region in Yazd Province). Iranian journal of Ecohydrology4(2), 369-377. (In Persian)
Joneidi Jafari, H., Azarnivand, H., & Zare Chahouki, M. A., Jafari, M., & Kargari, A. (2013). Effects of contour furrow on carbon sequestration and nitrogen fixation in Artemisia sieberi rangelands of Semnans province. Journal of Range and Desert Research, 22(2), 658- 672. (In Persian)
Koci, J., Wilkinson, S., Hawdon, A., Kinsey-Henderson, A., Bartley, R., & Goodwin, N. (2021). Effects of low-cost rehabilitation measures on gully sediment yields and vegetation in a savanna rangeland. In EGU General Assembly Conference Abstracts (pp. EGU21-3742).
Moghadam, M. (1998). Rangeland and rangeland management (2nd ed.). University of Tehran, 470 p.
Mohseni, S., Tavili, A., Jafari, M., & Vahabzadeh, R. (2024). Evaluation of the Effect of Planting Projects on Soil and Vegetation Characteristics in the Salt Lands along Lake Urmia. Journal of Rangeland, 18(2), 169-183. (In Persian)
Mondaca, P., Lebuy, R., Rojas, S., Aguas, J., Celis-Diez, J. L., & Díaz-Siefer, P. (2024). Contour furrowing reduces erosion and enhances soil moisture on semiarid hillslopes. Geoderma Regional 38, e00826.
Motamedi, J., & Sheidai, E. (2018). Importance of evaluating criteria and indicators to use for allocating management and biological practices for rangeland improvement (Case study: Hendowan mountainous rangelands, Khoy, West Azarbaijan). Journal of Rangeland, 12(3), 354-369. (In Persian)
Mu, X., Yang, Y., Xu, H., Guo, Y., Lai, Y., McVicar, T., Xie, D., & Yan, G. (2024). Improvement of NDVI mixture model for fractional vegetation cover estimation with consideration of shaded vegetation and soil components. Remote Sensing of Environment314, 114409.
Noorafkan, A., Akhtari, R., & Delavar, M. (2021). Evaluation of the effects of watershed management measures on water balance components and sediment (Case study: Vardij-Varish watershed). Iranian Water Resources Research, 17(1), 277–289.
Ott, J., Kilkenny, F. F., Summers, D., & Thompson, T. W. (2019). Long-Term Vegetation Recovery and Invasive Annual Suppression in Native and Introduced Postfire Seeding Treatments. Rangeland Ecology & Management, 72(4), 640-653.
Parvizi, Y., & ArabKhedri, M. (2021). Methods of controlling erosion and protecting soil in low-yield, sloping drylands, Soil Conservation and Watershed Management Research Institute. Tehran, Iran, 39 pages. (In Persian)
Retallack, A., Rifai, S. W., Finlayson, G., Ostendorf, B., & Lewis, M. (2024). Remote sensing for rangeland conservation monitoring: Impacts of livestock removal after 15 years. Journal of Applied Ecology61(9), 2111-2122.
Sedghi, S. (2022). The effect of implementing biomechanical operations on vegetation cover in rangelands (Case study: Rangelands of Abarkouh County, Yazd Province). Natural Ecosystems of Iran, 12(4), 13-24. (In Persian)
Shabani, M., Azarakhshi, M., Farzadmehr, J., & Bazrafshan, M. (2019). The effects of rangelands improvement and reclamation on vegetation and soil characteristics of Jannat Abad rangelands of Roshtkhar. Iranian Journal of Range and Desert Research, 26(2), 423-431. (In Persian)
Wang, S., & Hou, F. (2021). Seed Bank of Livestock Dung in the Qilian Mountain Grassland: A Potential Resource for Vegetation Recovery. Rangeland Ecology and Management, 78, 90-99.
Yasrebi, B., & Dinarvand, M. (2024). Evaluating the effect of pitting operations on improving soil conditions and vegetation diversity. Watershed Engineering and Management, in press. (In Persian)