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بررسی اثر پساب شهری، آب شور و آب لبشور بر برخی از ویژگیهای خاک (مطالعه موردی: دشت قم) | ||
| تحقیقات مرتع و بیابان ایران | ||
| مقاله 10، دوره 23، شماره 3، مهر 1395، صفحه 543-554 اصل مقاله (424.18 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijrdr.2017.107614 | ||
| نویسندگان | ||
| مینا ارست1؛ غلامرضا زهتابیان2؛ محمد جعفری2؛ حسن خسروی* 3؛ سعید شجاعی1 | ||
| 1دانشجوی کارشناسی ارشد بیابانزدایی، گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران | ||
| 2استاد، گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران | ||
| 3استادیار، گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران | ||
| چکیده | ||
| مدیریت استفاده از آبهای نامتعارف در زمینهای کشاورزی ضمن کاهش خطرات زیست محیطی، افزایش بهرهوری آنها را در پی دارد. به همین منظور این پژوهش با هدف ارزیابی و مقایسه تأثیر پساب، آب شور و آب لبشور بر تغییرات موادآلی، جرم مخصوص و هدایت الکتریکی خاک انجام شد. بدین منظور تعداد پنج مکان مطالعاتی در نظر گرفته شد. این مکانها شامل شاهد، آبیاری با آب شور، آب لبشور، پساب و آبیاری تلفیقی پساب و آب شور میباشد. در مناطق یاد شده اقدام به حفر پروفیل در 5 تکرار شد. از هر پروفیل سه نمونه از دو عمق سطحی (0-30) سانتیمتر و تحتالارضی (30-60) سانتیمتر برداشت شد. نتایج نشان داد که کاربرد پساب موجب بهبود ویژگیهای خاک از لحاظ مقدار ماده آلی و تا حدی جرم مخصوص ظاهری نسبت به سای | ||
| کلیدواژهها | ||
| بیاری تلفیقی پساب و آب شور؛ هدایت الکتریکی؛ وزن مخصوص ظاهری؛ آب لبشور؛ ماده آلی | ||
| عنوان مقاله [English] | ||
| The study of urban wastewater, saline water and brackish water effects on some soil characteristics (Case study: Qom plain) | ||
| نویسندگان [English] | ||
| Mina Arast1؛ Gholamreza zehtabian2؛ Mohammad Jafari2؛ hasan khosravi3؛ saeed shojaee1 | ||
| چکیده [English] | ||
| The used of unconventional waters in the agricultural lands not only reduces the environmental hazards but also increases the productivity. This research was aimed to assess the effects of wastewater, saline water and brackish water on some soil properties including organic matter, bulk density, and electrical conductivity. Therefore, five study sites were selected. The treatments consisted of control, irrigation with saline water, brackish water, and wastewater as well as mixed irrigation of wastewater and saline water. Five profiles were dug in the study sites. In each profile, two samples were taken from two depths of 0-30 cm and 30-60 cm. The results showed that irrigating with wastewater led to improved soil properties in terms of organic matter and bulk density, as compared with other treatments. There was no significant difference in pH among all treatments. However, the amount of Electrical Conductivity of saline water in surface and deep layers of soil was 17.57 ds/m and 5.5 ds/m, respectively. This large difference between the two depths in saline water treatment represents the EC downward trend from surface to depth. This trend was constant for the brackish water and wastewater treatments. | ||
| کلیدواژهها [English] | ||
| Bulk density, brackish water, electrical conductivity, mixed irrigation, organic matter, wastewater, saline water | ||
| مراجع | ||
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