Volume 17, Issue 64 (summer 2013)                   jwss 2013, 17(64): 173-183 | Back to browse issues page

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Zarea Khormizi M, Najafinejad A, Noura N, Kavian A. The Effects of Soil Properties on Runoff and Soil Loss Generation in the Farm Lands of the Chehel-Chai Watershed, Golestan Province. jwss 2013; 17 (64) :173-183
URL: http://jstnar.iut.ac.ir/article-1-1674-en.html
, najafinejad@yahoo.com
Abstract:   (10981 Views)
Soil erosion is one of the most important factors affecting soil quantity and quality and is environmental problems in developing countries like Iran. It can have deteriorating effects on ecosystems. This research was carried out in farm lands of the Chehel-Chai watershed, Golestan province to investigate the effect of soil properties on runoff and soil loss. Runoff and soil loss were measured in a completely randomized design in 36 plots with 10×10 m sizes in farm lands. For this reason, this study was conducted using rainfall simulator with 2 mm/min intensity and 15 min duration in 4 replicates. Soil samples were also taken in each plot. Sampling was conducted in October 2009. Results of the Pearson correlation showed that among soil properties, the contents of the lime, silt and fine sand had positive correlations with runoff at 1% confidence level. Also, soil surface resistance at 1% confidence level, the contents of the organic matter and nitrogen at 5% confidence level had negative correlations with soil loss. Finally, the results of multiple linear models showed that the content of lime is effective in estimating runoff and soil surface resistance, and organic matter is effective in estimating soil loss.
Full-Text [PDF 564 kb]   (3382 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2011/09/27 | Accepted: 2012/09/25 | Published: 2013/09/16

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