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Gheitury, M., Heshmati, M., Parvizi, Y. (2013). Rangeland Management Effects on Soil Organic Carbon Content and Soil Aggregates in Four Sites in Kermanshah Province, Iran. , 27(3), 349-357. doi: 10.22092/ijsr.2013.126263
M. Gheitury; Mosayeb Heshmati; Y. Parvizi. "Rangeland Management Effects on Soil Organic Carbon Content and Soil Aggregates in Four Sites in Kermanshah Province, Iran". , 27, 3, 2013, 349-357. doi: 10.22092/ijsr.2013.126263
Gheitury, M., Heshmati, M., Parvizi, Y. (2013). 'Rangeland Management Effects on Soil Organic Carbon Content and Soil Aggregates in Four Sites in Kermanshah Province, Iran', , 27(3), pp. 349-357. doi: 10.22092/ijsr.2013.126263
Gheitury, M., Heshmati, M., Parvizi, Y. Rangeland Management Effects on Soil Organic Carbon Content and Soil Aggregates in Four Sites in Kermanshah Province, Iran. , 2013; 27(3): 349-357. doi: 10.22092/ijsr.2013.126263

Rangeland Management Effects on Soil Organic Carbon Content and Soil Aggregates in Four Sites in Kermanshah Province, Iran

پژوهش های خاک
Volume 27, Issue 3, November 2013, Pages 349-357    PDF (305.37 K)
Document Type: Research Paper
DOI: 10.22092/ijsr.2013.126263
Authors
M. Gheitury* 1; Mosayeb Heshmati2; Y. Parvizi2
1Scientific Members, Agriculture and Natural Resources Research Center, Kermanshah, Iran
2Assistant professor, Agriculture and Natural Resources Research Center, Kermanshah, Iran
Abstract
Improper rangeland management and land-use change affect global warming through increase in greenhouse gasses and, therefore, current land-use should be improved. This research was carried out in Kermanshah province, Iran, for exploring the effects of five different managements and utility of rangeland including protected rangeland (PR), over grazing (OR), fired rangeland (FR), rangeland conversion to orchard (CO) and conversion to rain-fed (CR) on soil organic carbon (SOC) content and, consequently, soil aggregate size distribution (ASD). Soil samples were taken from 0-20 cm depth for routine soil analysis including texture, calcium carbonate, pH, EC, and SOC as well as ASD. The results showed that both SOC and ASD were significantly affected by rangeland management. The respective SOC content in PR, OR, FR, CO and CR were 3.12%, 1.16%, 1.61%, 2.13%, and 1.22 %. However, the respective large aggregates (> 1 mm) in soil from PR, OR, FR, CO and CR were 54.85%, 29.68%, 34.72%, 43.71%, and 26.09 %, which were significantly higher in the PR and CO due to higher level of SOC. In contrast, lower values of SOC in OR and FR resulted in higher amount of small aggregate size in these rangelands, thereby increasing soil erosion vulnerability.
Keywords
Erosion vulnerability; Fired rangeland; Protected Rangeland; Rangeland conversion
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