the study of soil characteristics irrigated by unconventional in surface and deep layer

نویسندگان

مینا ارست

کاشان، دانشگاه کاشان، دانشکدة منابع طبیعی و علوم زمین، گروه جغرافیا و اکوتوریسم غلامرضا زهتابیان

تهران، دانشگاه تهران، دانشکدة منابع طبیعی، گروه احیای مناطق خشک و کوهستانی محمد جعفری

تهران، دانشگاه تهران، دانشکدة منابع طبیعی، گروه احیای مناطق خشک و کوهستانی حسن خسروی

تهران، دانشگاه تهران، دانشکدة منابع طبیعی، گروه احیای مناطق خشک و کوهستانی

چکیده

management of unconventional water management in agricultural lands reduces environmental risks and increases its productivity. the purpose of this study was evaluating and comparing the effect of wastewater, saltwater and brackish water on some soil physical and chemical properties. for this purpose, five study sites including control area, irrigation with saltwater, brackish water wastewater and consolidated irrigation of waste water and saltwater were selected. in each site 5 profiles were drilled based on area. the soil samples were taken from both layers of (0-30) and (30-60) centimeter. the results showed that using wastewater has increased soil properties such as organic matter and bulk density rather than the other treatments but there was no change in soil texture. there was no significant change in acidity between treatments. the electrical conductivity of saline water showed enormous difference between two depths in this treatment which represents the decreased trend of electrical conductivity from surface to depth. but this trend was stable in brackish water and wastewater treatment. variance analysis of samples with 99% probability showed that irrigation with wastewater leads to an increase in dissolved lime and chlorine in the soil, which is in contrast with irrigation with brackish and salty water samples.

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15 صفحه اول

status and evaluation of the selected soil nutrients irrigated by unconventional water (case study: qom)

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