Effect of land use types and slope on soil Erodibility factor in Alborz province, Iran
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 4, Issue 1
Abstract
Erodibility is the qualitative and quantitative statement of the intrinsic susceptibility of a specific soil to detachment and transfer by the rain water and runoff. In the present study, using the nomograph and the corresponding equation, the erodibility status of the soil in Zidasht, located in Alborz province, was determined and the effect of slope on soil erodibility with different land uses was analyzed. First, three slope classes consisting of 3-8%, 8-18%, and 18-40% were chosen for land use units including pasture, dry land farming, andirrigated farming, and soil samples in three repetitions. The samples were used for organic matter measurement, soil gradation and texture analysis, and bulk density measurement. Erodibility for pasture land use increased with slope percentage, which is statistically significant at the p<0.01 level. The same was true for dry land farming, i.e. erodibility increased significantly at the same p level with slope percentage. In the case of irrigated farming, lands with 8-18% slope had the highest erodibility;this shows a critical condition at this slope class. Lands with 18-40% slope had the lowest erodibility; this can be because of erosion at earlier times. In general, the results indicate that erodibility increases with slope percentage of lands with agricultural use. Without considering land use types, lands with 3-8% slopes had the lowest erodibility, while an increase in the slope led to an increased erodibility.
Authors and Affiliations
Mohammad TaherNezami| Department of Soil science, Islamic Azad University, Karaj Branch, Karaj, Iran, MahtabAhmadi| postgraduate student in Soil Physics and Conservation, Islamic Azad University, Karaj Branch, Karaj, Iran
Keywords
Related Articles
- EP ID EP5268
- DOI -
- Views 376
- Downloads 14
Effect of organic fertilizer on length of pod, biological yield and number of seeds per pod in mung bean (Vigna radiata L.)
Mung bean is a warm season crop requiring 90–120 days of frost free conditions from planting to maturity. Adequate rainfall is required from flowering to late pod filling in order to ensure good yield. Organic materials...
The relationship between water quality parameters and response to density stress in Pacu fish (Piaractus brachypomus)
Backgrounds: Pacu, Piaractus brachypomus is an ornamental imported fish that is reared as an edible fish in some countries. There have been very few studies as food fish in Iran. Objectives: This study aimed to evaluate...
Studying Seaport’s Hinterland-Foreland Concepts and the Effective Factors on Their Development
The areas which enjoying the comparative advantage, the main hinterland shall be considered a port and generally, this port to handle the majority of entry and exit cargos. The comparative hinterland consisting of areas...
Mites recorded from insectary cultures in the Shiraz region of Iran
The mites (Acari) associated with insectary cultures at three separate locations in the Shiraz region, (Fars Province, Iran) that are maintained for the breeding of beneficial insects used for biological control were sam...
Assessment of Physical Activity of Pregnant Women and some of its Related Factors
Physical activity appropriate to the conditions of gestation period helps to improve health of mother and better growth of fetus. Based on this, the present study was conducted aiming to determine the effect of physical...