نوع مقاله : مقاله پژوهشی
نویسندگان
1 استادیار پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی آذربایجان شرقی، سازمان تحقیقات،آموزش و ترویج کشاورزی، ایران
2 دانشیار پژوهشی پژوهشکده حفاظت خاک و آبخیزداری کشور، سازمان تحقیقات،آموزش و ترویج کشاورزی، ایران
چکیده
پژوهش حاضر با هدف بررسی سامانه‌های ذخیره نزولات آسمانی پیتینگ، کنتورفارو و نقش آن‌ها در جمع‌آوری آب باران و تولید علوفه در شرایط دیم طراحی شد. این پژوهش، با پنج تیمار پیتینگ همراه بذرپاشی (B)، کنتورفارو همراه بذرپاشی (A)، پیتینگ بدون بذر (E)، کنتورفارو بدون بذر (C) و تیمار شاهد (D) در سه تکرار اجرا شده است. کرت‌های استاندارد فائو به ابعاد پنج در 40 متر برای اجرای طرح در ایستگاه تحقیقاتی تیکمه‌داش در نظر گرفته شد. در تیمارهای بذرپاشی شده گونههای اگروپایرون النگاتوم و اسپرس محلی به‌علت اثرات حفاظت خاک و تولید علوفه کشت شد. تحلیل آماری نتایج با استفاده از نرم‌افزار SPSS در قالب بلوک‌های کامل تصادفی انجام گرفت. نتایج تحلیل‌های آماری نشان داد، بیشترین درصد تاج پوشش کل در بالادست کرت‌ها مربوط به تیمار فارو با بذرپاشی با میانگین 80 درصد، میانه کرت‌ها مربوط به عملیات پیتینگ با میانگین 78 درصد و در انتهای کرت‌ها پیتینگ بذرپاشی با میانگین 80 درصد است. مقایسه میانگین درصد پوشش گیاهی و تولید علوفه در تیمارها نشان داد که درصد پوشش گیاهی تیمارهای A، B، C، D و E با هم اختلاف معنی‌داری نداشته، در یک گروه قرار دارند. تولیدات گیاهان مرتعی و خوشخوراک در تیمار پیتینگ E بیشتر بوده، با تیمارهای A، B، C و D اختلاف معنی‌داری دارد. همچنین، تیمارهای A، B، C در تولید گیاهان مرتعی اختلاف معنی‌داری نداشته، ولی با تیمار شاهد (D) اختلاف معنی‌داری دارند. بیشترین تولید گیاهان مرتعی با 729.17 کیلوگرم در هکتار در تیمار پیتینگ و کمترین آن با 315.33 کیلوگرم درهکتار به تیمار شاهد تعلق دارد.
کلیدواژه‌ها
عنوان مقاله [English]
The effect of rainfall harvesting systems on increasing rangeland vegetation
نویسندگان [English]
- Ahad Habibzadeh 1
- Aliakbar Noroozi 2
1 Assistant Research Center for Agriculture and Natural Resources of East Azarbaijan
2 Associate Professor, Soil conservation and watershed management research institute, Agricultural Research and Education Organization, Tehran, Iran
چکیده [English]
The aim of this study was to investigate the pitting and contour rainfall harvesting systems and their role in rainwater collection and forage production in rainfed conditions. This study was performed with five treatments of pitting with seeding (B), contour furrows with seeding (A), pitting without seeding (E), contour furrows without seeding (C) and control treatment (D) in three replications. FAO standard plots measuring 5x40 meters were considered for the project at Tikmehdash Research Station. In seeded treatments, Agropyron elongatum and local sainfoin were cultivated due to the effects of soil protection and forage production. Statistical analysis of the results was performed using SPSS software in the form of randomized complete blocks. The results of statistical analysis showed that the highest to lowest percentage of total canopy cover is related to contour furrows and seeding treatment with an average of 80%, pitting operations with an average of 78% and pitting and seeding with an average of 80%, respectively. Comparison of the canopy cover and forage production in the treatments showed that the canopy cover in A, B, C, D and E were not significantly different and were in the same group. Production of rangeland and succulent plants was higher in E treatment and was significantly different from A, B, C and D treatments. Also, Treatments A, B and C were not significantly different in rangeland production, but were significantly different from D (control). The highest and lowest forage production of 729.17 and 315.33 kg.ha-1 belong to pitting and control treatments, respectively.
کلیدواژه‌ها [English]
- Agropyron
- Contour-furrow
- Rainfall harvesting
- Pitting
- Sainfoin
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