نشریه محیط زیست طبیعی

تعادل سنجی توسعة کشاورزی آبی در استان البرز

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه برنامه ریزی و طراحی محیط، پژوهشکده علوم محیطی، دانشگاه شهید بهشتی، تهران، ایران

2 گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران

چکیده

مدیریت پایدار سرزمین با برنامه ­ریزی استفاده از سرزمین در چارچوب تعادل فضایی مناسب فعالیت‌های انسانی با توان ­های محیط ممکن م ی­شود، بنابراین درک کافی و شناسایی تعادل و عدم تعادل‌های سازمان فضایی و شناخت مفهوم توازن و منابع ایجاد آن‌ها زمینه ­ساز برنامه‌ریزی بهینه در جهت کاهش ناسازگاری‌ها و رفع تعارض‌های فضایی خواهد شد. مطالعه حاضر به سنجش تعادل فضایی کاربری‌ها در پی ارزیابی قابلیت اراضی و ارائه سه وضعیت تصمیم ­گیری، شامل توسعة متعادل، توسعة نامتعادل و توسعة ممکن پرداخت. ارزیابی توان اکولوژیک سرزمین مبتنی بر قابلیت‌سنجی مؤلفه­ های اکولوژیک است و این مطالعه متمرکز بر این سنجش برای برای توسعة زراعت آبی است. قابلیت‌سنجی براساس 9 معیار فاکتور (شیب، ارتفاع از سطح دریا، متوسط دمای سالانه، طبقه تناسب خاک برای کشاورزی، واحد اراضی، عمق خاک، حاصلخیزی خاک، زهکشی خاک و آب قابل برنامه‌ریزی کشاورزی) و 8 معیار محدودیت (تیپ و تولید پوشش مرتعی، رویشگاه جنگلی، شوری و فرسایش خاک، سیل‌خیزی، مناطق حساس فرهنگی، مناطق حساس اکولوژیک و کاربری ناسازگار) صورت گرفت. مطابق نتایج به‌دست آمده در حال حاضر حدود 32 هزار هکتار از وسعت استان توان توسعه برای زراعت آبی دارد که از این میزان، در حال حاضر 78 درصد به کشاورزی آبی اختصاص یافته و دارای توسعة متعادل است. نتایج به‌دست آمده نشان داد که هم اکنون حدود 6100 هکتار از گسترة استان (1/2 درصد استان) کماکان دارای ظرفیت طبیعی برای توسعة زراعت آبی است، اما کاربری به آن اختصاص نیافته است و حدود 14 درصد از اراضی استان تحت پوشش توسعة کشاورزی آبی نامتعادل قرار دارد و از ظرفیت اکولوژیک لازم برای توسعة کشاورزی برخوردار نیست.

کلیدواژه‌ها

عنوان مقاله [English]

Balance assessment of irrigated agriculture development in Alborz province

نویسندگان [English]

  • Mohammad Saber Baghkhanipour 1
  • Romina Sayahnia 1
  • Naghmeh Mobarghei 1
  • Afshin Danehkar 2

1 Department of Planning and Designing the Environment, Environmental Sciences Research Institute(ESRI), Shahid Beheshti University, Tehran, Iran

2 Department of Environmental Science, Faculty of Natural Resources, University of Tehran, Karaj, Iran

چکیده [English]

Sustainable management of land is possible through planning its use within the framework of suitable spatial balance for human activities with environmental capabilities. Therefore, adequate identification and understanding of the balance and imbalances of the spatial structure, and also understanding of the concept of consistency and its required resources, are the basis for optimal planning toward reducing Incompatibilities and spatial conflicts. In the current study, the spatial balance of land uses is measured after evaluating land capability, and three options including balanced development, unbalanced development, and possible development are presented for decision-making. The evaluation of the ecological potential of the land is based on the capability assessment of ecological components, and the present study is focused on this assessment for the development of irrigated farming. Capability assessment is based on 9-factor criteria (slope, height above sea level, average annual temperature, soil suitability class for agriculture, land unit, soil depth, soil fertility, soil drainage, and programmable agricultural water) and 8 constraint criteria (cover type and production Pasture, forest habitat, soil salinity, soil erosion, flooding, culturally sensitive areas, ecologically sensitive areas, and incompatible land use). According to the results obtained, about 32 thousand hectares of the province's area can be developed for irrigated farming, of which 78% is currently allocated to irrigated agriculture and has a balanced development. Results indicate that currently about 6100 hectares of the province lands (1.2% of the province) still have a natural capacity for the development of irrigated farming, but the land use has not been allocated to it, and about 14% of the province's lands are covered by the development of unbalanced irrigated agriculture, and does not have the sufficient ecological capacity for agricultural development.

کلیدواژه‌ها [English]

  • Land capability
  • Irrigated Farming
  • Balanced Development
  • Ecological criteria
  • Alborz Province
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نشریه محیط زیست طبیعی
دوره 75، شماره 3 - شماره پیاپی 3
شهریور 1401
صفحه 460-476