The role of exclosure in changing aggregate stability and soil structure of rangelands in Golestan province

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SHEIDAI KARKAJ E.; REZAEI H.; NIKNAHAD GHARMAKHER H.; Jafari Footami i.; SHARIFIAN A.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2020 | Volume:26 | Issue:4 (77) Page(s): 904-917

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Title

The role of exclosure in changing aggregate stability and soil structure of rangelands in Golestan province

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Keywords

Soil aggregate stabilityQ2

soil structureQ2

exclosureQ2

Golestan provinceQ2

rangelandQ2

Abstract

Soil aggregate stability and soil structure considered as the key indicators of range soil health and counted as effective factors in soil erosion control. The present study was carried out to investigate the effect of exclosure on the stability of aggregates and soil structure in four areas of Golestan province including Chaharbagh, Incheboron, Gomishan and Maravetapeh. Soil sampling was carried out from two depths of 0-20 and 20-40 cm by digging profile in random-systematic method along transects in each of exclosure and adjacent sites of quadruple areas. Aggregates stability was measured by the method of wet sieving in the laboratory. The results were analyzed statistically using independent and paired samples t-test for exclosure sites and adjacent exclosure sites as well as two corresponding depths, respectively. In the most of studied sites, the aggregate stability values were higher in the surface soil than the deep soil. The results indicated that the effect of rangeland exclosure on morphological changes and soil status indicating positive role in development of soil structure in all studied areas, however, these results were statistically significant only in the Incheboron and Gommishan area in view point of Soil aggregate stability. The highest value of soil stability was in the first depth (4. 52 mm) of Gomishan exclosure site and the lowest one was in the second depth (1. 15 mm) in Gomishan grazing site. The final result showed that regardless of positive role of exclosure in promoting the stability of aggregate, factors such as geographic position of rangeland, climate, vegetation type and grazing conditions as the associated factors affecting the stability of aggregate and soil structure should be considered.

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APA: Copy

SHEIDAI KARKAJ, E., REZAEI, H., NIKNAHAD GHARMAKHER, H., Jafari Footami, i., & SHARIFIAN, A.. (2020). The role of exclosure in changing aggregate stability and soil structure of rangelands in Golestan province. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 26(4 (77) ), 904-917. SID. https://sid.ir/paper/359843/en

Vancouver: Copy

SHEIDAI KARKAJ E., REZAEI H., NIKNAHAD GHARMAKHER H., Jafari Footami i., SHARIFIAN A.. The role of exclosure in changing aggregate stability and soil structure of rangelands in Golestan province. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2020;26(4 (77) ):904-917. Available from: https://sid.ir/paper/359843/en

IEEE: Copy

E. SHEIDAI KARKAJ, H. REZAEI, H. NIKNAHAD GHARMAKHER, i. Jafari Footami, and A. SHARIFIAN, “The role of exclosure in changing aggregate stability and soil structure of rangelands in Golestan province,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 26, no. 4 (77) , pp. 904–917, 2020, [Online]. Available: https://sid.ir/paper/359843/en

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