نوع مقاله : Original Articles
نویسندگان
1 استادیاربخش مهندسی آب، دانشگاه شهید باهنر کرمان، ایران
2 مدرس گروه کشاورزی، دانشگاه پیام نور، تهران، ایران
3 عضوکمیسیون پژوهش سازمان حفاظت محیط زیست
4 دانشجوی کارشناسی ارشدسازه های دریایی، دانشکده عمران، دانشگاه علوم و تحقیقات واحد سیرجان
چکیده
اهمیت و جایگاه آب در حوزه‌های اقتصادی، انسانی، کشاورزی و صنعت بر هیچکس پوشیده نسیت. در این راستا به‌کارگیری روش‌های مبتنی بر آبیاری با آب‌های با کیفیت پایین مانند پساب یک راهکار عملی و مناسب می‌باشد. هم‌چنین پساب می‌تواند به‌عنوان یک منبع غنی از مواد معدنی و آلی بهمنظور حاصلخیز نمودن خاک قلمداد شود. در تحقیق حاضر بهمنظور ارزیابی اثرات استفاده از پساب، فاضلاب تصفیه‌شده شهری کرمان بر روی خصوصیات شیمیایی خاک در قالب دو نوع روش آبیاری شیاری و قطره‌ای در قیاس با آبیاری با آب چاه مورد بررسی و تحلیل قرار گرفت. در این پژوهش دور آبیاری 6 روز و آبیاری به مدت 6 ماه انجام پذیرفت. نمونه‌برداری‌ها از قسمت میانی جوی و در دو عمق 0-30 و30-60 سانتی‌متر در چهار تیمار آبیاری شیاری با آب چاه، آبیاری شیاری با پساب، آبیاری قطره‌ای با آب چاه و آبیاری قطره‌ای با پساب در قالب طرح بلوک‌های کامل تصادفی و در 3 تکرار صورت گرفت. نتایج نشان‌دهنده کاهش میزان اسیدیته، افزایش شوری، افزایش فسفر-فسفاتی، افزایش نیتروژن نیتراتی و افزایش تجمع فلزات‌سنگین خاک آبیاری شده با پساب در مقایسه با خاک آبیاری شده با آب چاه می‌باشد. هم‌چنین نتایج بیانگر افزایش تجمع فلزات‌سنگین در اعماق خاک با استفاده از شیوه آبیاری شیاری نسبت‌به آبیاری قطره‌ای است.
کلیدواژه‌ها
عنوان مقاله [English]
Effects of Using Wastewater Irrigation on the Chemical Characteristics of Soil Under Furrow and Drip Irrigation Methods
نویسندگان [English]
- Mohammad Zounemat Kermani 1
- Rasoul Asadi, 2
- Yarmohammad Bay 3
- Pooriya Mirzazanjani 4
1 Assistant Professor, Departement of Water Engineering., University of Shaihd Bahonar Kerman, Iran
2 Lectruer of Payame Noor University, Departement of Agricultural, Tehran, Iran
3 Member of Research Committee of Environmental Institute
4 MSc Student of Marine Structure, Faculty of Civil, University of Science and research Azad
چکیده [English]
The importance and position of water in economical, municipal, agricultural and industrial scopes is evident. Nevertheless, the shortage of the water resources, will duplicate the importance of protecting measures of clean water. Irrigation with treated municipal wastewater is considered an environmentally sound wastewater disposal practice compared to its direct disposal to the surface or ground water bodies. In addition, wastewater is a valuable source of plant nutrients and organic matter needed for maintaining fertility and productivity levels of the soil. In this research, the effects of treated wastewater of Kerman city on chemical characteristics of soil using drip and furrow irrigations were investigated. Irrigation period was 6 days and lasted for 6 months. Samplings were done for the middle part of furrows in two depths of 0-30 cm and 30-60 cm in four irrigation treatments. The experiments were conducted in a split plot design based on the Randomized Complete Block Design (RCBD) with three replications. Results showed the reduction of pH, and increment of salinity, phosphate phosphorus, nitrate nitrogen and heavy metals of using wastewater compare to well water. Moreover, the results indicate the increasing of accumulation of heavy metals in soil depth applying furrow irrigation in comparison to drip irrigation
کلیدواژه‌ها [English]
- Keywords: Wastewater
- Furrow irrigation
- Drip irrigation
- Chemical characteristics ofsoil
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