بررسی نقش کشاورزی حفاظتی بر پایداری ساختمان خاک درراستای نیل به مدیریت پایدار
Subject Areas : Environmental policy and managementسحر دعایی 1 , ابراهیم پذیرا 2 , شهلا محمودی 3 , علی محمدی ترکاشوند 4
1 - گروه خاکشناسی، دانشکده کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران
2 - گروه خاکشناسی، دانشکده کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران
3 - گروه خاکشناسی، دانشکده کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران.
4 - گروه خاکشناسی، دانشکده کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران.
Keywords: کشاورزی حفاظتی, ویژگی‌های خاک, خاک ورزی حفاظتی, پایداری خاک دانه,
Abstract :
کشاورزی حفاظتی برای جبران نیاز افزایش تولید محصولات کشاورزی براساس فعالیتهای کشاورزی پایدار به عنوان یک جایگزین با هدف افزایش تولید و پایداری محصول همراه با حفظ محیط زیست منظور می‌شود. در مدیریت پایدار خاک ضروری اسـت کـه کیفیـت خاک ارزیابی گردد. روش خاکورزی یکی از مدیریت‌هایی است که به شدت بر ساختمان خاک تاثیردارد. انتخاب درست روش خاکورزی بر عملکرد محصول،کیفیت خاک، میزان مصرف نهاده‌ها تاثیر قابل ملاحظه‌ای دارد. انتخاب سیستمهای خاکورزی مناسب براساس شرایط هر منطقه از جمله آب وهوا، نوع خاک، نوع بقایای گیاهی، قدرت کششی در دسترس و غیره متفاوت است. پایداری خاکدانهها یکی ازخصوصیات اصلی موثر برفرسایش‌پذیری و ویژگی‌های اصلی فیزیکی و هیدرولیکی خاک است. شناخت اجزای کنترل کننده پایداری خاکدانهها برای حفظ ساختمان خاک بسیار مهم است. این تحقیق به صورت مقاله مروری با هدف بررسی نقش خاکورزی بر روی پایداری خاکدانهها و ساختمان خاک در دستیابی به توسعه پایدارکشاورزی صورت گرفته است. با توجه به مزیتهای روش خاکورزی حفاظتی مطلوبتراست، جهت توسعه پایدار بخش کشاورزی از این نوع خاکورزی استفاده نمود.
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