اارزیابی توان اکولوژیکی شهرستان ورامین برای توسعه فعالیت‏های کشاورزی با استفاده از مدل اکولوژیکی ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانش آموخته گروه زراعت و اصلاح نباتات، پردیس کشاورزی و مناربع طبیعی

2 استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران

3 استاد پردیس کشاورزی و منابع طبیعی کرج، گروه زراعت و اصلاح نباتات، تخصص: زراعت، اکولوژی

4 استاد گروه جنگل دانشگاه تهران

چکیده

شهرستان ورامین به دلیل نزدیکی با کلانشهر تهران، منطقه‏ای مهاجرپذیر است. این روند مهاجرپذیری، افزایش جمعیت و تغییر کاربری اراضی را به دنبال داشته است. از سوی دیگر این شهرستان با برخورداری از شرایط فیزیوگرافی و پتانسیل آبی و خاکی مطلوب، ظرفیت بالایی برای توسعه کشاورزی دارد. از این رو، در مطالعه حاضر توان اراضی منطقه با استفاده از مدل کاربری کشاورزی و مرتعداری ایران ارزیابی شد. ابتدا بر اساس مدل کاربری کشاورزی و مرتعداری ایران، مدل ویژه برای منطقه مطالعاتی تهیه شد. سپس نقشه‏های ارتفاع، شیب، جهت‏های جغرافیایی، خاک، تیپ و تراکم پوشش گیاهی منطقه در نرم افزار ArcGIS 10.4 تهیه، طبقه‏بندی و سپس تلفیق شدند تا در نهایت نقشه یگان‏های محیط زیستی با 863 واحد ساخته شد. در گام آخر، با مقایسه نیازهای کاربری‏ها با خصوصیات واحدها، کاربری بهینه هر واحد مشخص شد. نتایج نشان داد، از کل وسعت منطقه 12/33 درصد برای کشاورزی با توان درجه سه، 45/0 درصد برای کشاورزی با توان درجه پنج، 19/0 درصد برای مرتعداری با توان درجه یک، 54/0 درصد برای مرتعداری با توان درجه دو، 42/9 درصد برای مرتعداری با توان درجه سه و 93/54 درصد برای حفاظت متناسب می‏باشد (35/1 درصد از منطقه به کاربری مسکونی اختصاص داشت).

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Assessing the ecological capability of the Varamin Region for the development of agricultural activities using Iran's ecological model

نویسندگان [English]

  • Nasrin Ziloee 1
  • Naser Majnoun Hossini 2
  • Mohammad Reza Jahansooz 3
  • Majid Makhdom 4
1 Ph.D student of Agronomy department, university of Tehran
2 Professor of Agronomy Department, University of Tehran
3 Professor of Agronomy Department, University of Tehran
4 Professor of Agronomy Department, University of Tehran forestry Department, University of Tehran
چکیده [English]

Varamin is a migratory region due to its close proximity to Tehran's metropolis. This trend has led to increase population and land use change. Conversely, having favorable physiographic conditions and favorable water and soil potential, this region has a high capacity for agricultural development. In this study, the ecological capability were evaluated using Iran's agricultural and rangeland applications model. First, a specific model based on Iran's agricultural and rangeland applications model, for regional studies has been prepared. Then, various maps of elevation, gradient, geographic directions, soil, vegetation type and vegetation density of the studied area prepared in ArcGIS 10.4 software and then the maps integrated into final plan of the environmental units with 863 units. In the last step, with comparison of applications requirement with properties of units optimal usage of each unit was determined. The results showed that from the total area of the region, 33.12% were suitable for agriculture with grade of 3; 0.45 percent with grade of 5; 0.19 percent for range management with grade of 1; 0.54 percent with grade of 2; 9.42 percent with grade of 3 and 54.93 percent were suitable for protection (1.35% of the area were allocated to settlements).

کلیدواژه‌ها [English]

  • land use planning
  • land suitability
  • environmental units

مراجع

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علوم گیاهان زراعی ایران
دوره 50، شماره 2
تیر 1398
صفحه 117-132

فایل ها

سابقه مقاله

  • تاریخ دریافت: 30 دی 1396
  • تاریخ بازنگری: 03 تیر 1397
  • تاریخ پذیرش: 07 مرداد 1397
  • تاریخ انتشار: 01 تیر 1398

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