Comparison of soil degradation in the surface and depth layer in different land use

  • سال انتشار: 1396
  • محل انتشار: کنفرانس بین المللی مدیریت منابع طبیعی در کشورهای در حال توسعه
  • کد COI اختصاصی: NRCCONF01_276
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 393
دانلود فایل این مقاله

نویسندگان

Mahnaz Ranjpishe

International Desert Research Center, University of Tehran, Iran

Rayhan Karimpour

International Desert Research Center, University of Tehran, Iran

Gholamreza Zehtabian

Department of Arid and Mountainous Regions Reclamation, University of Tehran, Iran

Hassan Khosravi

Department of Arid and Mountainous Regions Reclamation, University of Tehran, Iran

چکیده

Soil quality are defined as the capacity of soil to function as a vital living system within land use boundaries. This function which sustains biological productivity of soil also maintains the quality of surrounding environment and human health. The aim of this study was to soil degradation in the surface and depth layer in different land use in Shabestar catchment. A map of the area, including soil maps and land use, was obtained from the GIS. The selected land use included agricultural land, gardens, barren lands, and rangelands. Soil samples were taken in every part of the area, including agricultural land, and soil factors were measured within two groups of (a) soil improvement factors, including nitrogen, phosphorus, potassium, humus and lime, and (b) soil degradation factors, including acidity, sodium adsorption ratio (SAR), chlorine, sodium, bicarbonate and salinity, in two depths of 0-30 and 30-60 cm. The results obtained in T-test showed that, in most treatments, the deep layers of the soil have been destroyed and have contributed to desertification. It is due to the accumulation of sodium and sodium adsorption ratio in this layer, while the damaging effect has been low in the surface layer. This is the reason why it can be seen in farmland irrigation.

کلیدواژه ها

surface and depth layer, soil quality, T-test, Shabestar city

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.