干旱区生态环境知识资源中心(Arid): Assessment of Soil Redistribution Following Land Rehabilitation with an Apple Orchard in Hilly Regions of Central Iran

Arid

DOI	10.3390/agronomy12020451
	Assessment of Soil Redistribution Following Land Rehabilitation with an Apple Orchard in Hilly Regions of Central Iran
	Ayoubi, Shamsollah; Mohammadi, Ameneh; Abdi, Mohammad Reza; Afshar, Farideh Abbaszadeh; Wang, Lin; Zeraatpisheh, Mojtaba
通讯作者	Wang, L ; Zeraatpisheh, M
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2022
卷号	12 期号:2
英文摘要	This study was executed to explore soil redistribution and soil quality changes induced by land degradation and then rehabilitation by orchard plantation in different slope positions in a semi-arid region in central Iran. A total of 72 surface soil samples (0-30 cm) were collected from three land uses (natural rangelands, dryland farming, and apple orchards) in four slope positions (shoulder, backslope, footslope, and toeslope). The soil physicochemical properties and magnetic parameters were measured, and soil redistribution was determined in the selected soil samples using the Cs-137 technique. The results showed that rangeland degradation and, subsequently, rainfed cultivation, led to a significant decline in the soil quality indicators, such as soil organic matter (SOM), total nitrogen (TN), available potassium (K-ava), and available phosphorous (P-ava), thus incurring further soil loss, as determined by the Cs-137 technique. Conversely, the conversion and rehabilitation of drylands to apple orchards cultivated on the contour terraces improved soil quality significantly and decreased soil loss (p < 0.05) and soil quality grade (p < 0.01). Additionally, the findings indicated that slope positions relative to land use change had a reasonable impact on the variability of soil properties and soil loss and deposition. The results of Cs-137 analysis showed that the drylands had the highest soil loss (185.3 t ha(-1) yr(-1)) and maximum sedimentation (182. 5 t ha(-1) yr(-1)) in the shoulder and footslope positions, respectively. The random forest model applied between Cs-137 inventory and soil properties indicated that calcium carbonate equivalent (CCE), TN, P-ava, K-ava, and bulk density (rho b) could explain 75% of the total variability in Cs-137 inventory with high R-2 (0.94) and low RMSE (111.29). Magnetic measurements have shown great potential as a cost-effective and fast method for assessing soil redistribution in hilly regions, as confirmed by the findings of the Cs-137 analysis, which agreed well with the magnetic susceptibility at low frequency (chi(lf)). Overall, the results confirmed that restoring abandoned dryland by orchard cultivation may improve soil quality and diminish soil loss in the semi-arid region of Iran. However, further research is required to assess other aspects of the ecosystem affected by this restoration.
英文关键词	soil rehabilitation Cs-137 technique magnetic susceptibility random forest soil quality index
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000778159800001
WOS关键词	MAGNETIC-SUSCEPTIBILITY ; SPATIAL VARIABILITY ; ORGANIC-CARBON ; SEMIARID REGION ; SLOPE GRADIENT ; PASTURE DEGRADATION ; QUALITY INDICATORS ; CS-137 INVENTORY ; RECLAIMED LAND ; SURFACE SOILS
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391728
推荐引用方式 GB/T 7714	Ayoubi, Shamsollah,Mohammadi, Ameneh,Abdi, Mohammad Reza,et al. Assessment of Soil Redistribution Following Land Rehabilitation with an Apple Orchard in Hilly Regions of Central Iran[J],2022,12(2).
APA	Ayoubi, Shamsollah,Mohammadi, Ameneh,Abdi, Mohammad Reza,Afshar, Farideh Abbaszadeh,Wang, Lin,&Zeraatpisheh, Mojtaba.(2022).Assessment of Soil Redistribution Following Land Rehabilitation with an Apple Orchard in Hilly Regions of Central Iran.AGRONOMY-BASEL,12(2).
MLA	Ayoubi, Shamsollah,et al."Assessment of Soil Redistribution Following Land Rehabilitation with an Apple Orchard in Hilly Regions of Central Iran".AGRONOMY-BASEL 12.2(2022).