ECOPERSIA
ECOPERSIA
ECOPERSIA
Basic Sciences
http://ecopersia.modares.ac.ir
1
admin
2322-2700
2538-2152
10.22034/ecopersia
en
jalali
1393
3
1
gregorian
2014
6
1
2
2
online
1
fulltext
en
Assessing the Role of Some Soil Properties on Aggregate Stability Using Path Analysis (Case Study: Silty-Clay- Loam and Clay-Loam Soil from Gully Lands in North West of Iran)
Soil characteristics is very important in water erosion processes. The present investigation was conducted in gully lands of Ardebil Province, Iran, to assess the role of soil texture and structure on aggregate stability using wet sieve method. To achieve the study purposes, mean weighted diameter of aggregates was calculated, and its relationships with lime and clay percentages, sodium absorption ratio and soil organic matter were then determined. The research results showed, in the first and second depth, the organic matter had the highest direct and positive effect on aggregate stability. In first depth, clay and lime had a direct and positive effect on aggregate stability. In both depths, sodium absorption ratio had the highest but negative effect on aggregate stability. Organic matter and clay had the highest direct and positive effect on aggregate stability in the second depth. The highest indirect effect of the parameters on aggregate stability was in second depth due to effect of clay and organic matter on each other. In second depth, lime had the direct and positive effect on aggregate stability. Sodium absorption ratio had a direct and negative effect on aggregate stability in both study depths.
Soil erosion,Path analysis,Ghori-Chai watershed,R software
513
523
http://ecopersia.modares.ac.ir/browse.php?a_code=A-24-1000-7756&slc_lang=en&sid=24
Behnam
Farid Giglo
Behnam
Farid Giglo
100319475328460055303
100319475328460055303
No
MSc. Student, Faculty of Range and Watershed Management Engineering, Gorgan University of Agricultural and Natural Resources Sciences, Gorgan, Iran
MSc. Student, Faculty of Range and Watershed Management Engineering, Gorgan University of Agricultural and Natural Resources Sciences, Gorgan, Iran
Abdolhossein
Arami
Abdolhossein
Arami
100319475328460055298
100319475328460055298
No
MSc. Student, Faculty of Range and Watershed Management Engineering, Gorgan University of Agricultural and Natural Resources Sciences, Gorgan, Iran
MSc. Student, Faculty of Range and Watershed Management Engineering, Gorgan University of Agricultural and Natural Resources Sciences, Gorgan, Iran
Davoud
Akhzari
Davoud
Akhzari
100319475328460055289
100319475328460055289
Yes
Assistant Professor, Faculty of Natural Resources, Malayer University, Malayer, Iran.
Assistant Professor, Faculty of Natural Resources, Malayer University, Malayer, Iran.