ارزیابی تناسب اراضی برای کاربری های کشاورزی و مرتع‌داری با روش ترکیب خطی وزن دار (مطالعه موردی: حوزه آبخیز قوری چای استان اردبیل)

محورهای موضوعی : آمایش سرزمین

مرضیه علی خواه اصل ¹ , داریوش ناصری ²

1 - استادیار، گروه کشاورزی و منابع طبیعی، دانشگاه پیام نور، تهران، ایران *(مسوول مکاتبات).
2 - گروه محیط زیست، واحد اردبیل، دانشگاه آزاد اسلامی، اردبیل، ایران.

تاریخ دریافت : 1395/04/22 تاریخ پذیرش : 1396/08/24 تاریخ انتشار : 1399/10/01

کلید واژه: AHP, فازی, ترکیب خطی وزن‌دار, قوری چای,

چکیده مقاله :

زمینه و هدف: لزوم رعایت نکات آینده نگری و ترسیم سیمای آینده توسعه، گرایش ها را در زمینه ی برنامه ریزی و بهره برداری عقلانی از منابع سوق می دهد. حوزه آبخیز قوری چای یکی از حوزه‌های شمال استان اردبیل به شمار می‌رود که نقش مهمی در امرار معاش مردم بومی منطقه دارد. هدف از تحقیق حاضر، ارزیابی توان اکولوژیک و تعیین تناسب اراضی برای فعالیت‌های کشاورزی و مرتع‌داری در حوزه آبخیز قوری چای اردبیل در سال 1394 می‌باشد. روش بررسی: در مرحله اول، با بررسی منابع و کسب استانداردها، معیارهای ارزیابی توان کشاورزی-مرتع داری مشخص گردید. در مرحله‌ی بعد، کلیه‌ی لایه ها با فرمت مشابه به سیستم اطلاعات جغرافیایی (GIS[1]) وارد و با روش فازی استانداردسازی شدند. در ادامه، از فرایند تحلیل سلسله مراتبی (AHP[2]) و ماتریس مقایسات دوتایی، برای وزن دهی به معیارها و زیرمعیارها استفاده شد و در نهایت، کلیه‌ لایه‌ها با استفاده از روش ترکیب خطی وزن‌دار (WLC[3]) تلفیق شدند. یافته‌ها: بر اساس نتایج، 42/ 9811 هکتار (85/82%) از منطقه برای فعالیت کشاورزی و 31/2027 هکتار (15/17%) برای فعالیت مرتع داری دارای پتانسیل است. نتیجه‌گیری: بر اساس نتایج به دست آمده از این پژوهش، بین کاربری فعلی اراضی و پتانسیل سرزمین برای کشاورزی و مرتع داری در منطقه، رابطه ی متعادلی برقرار نیست.

چکیده انگلیسی:

Background and Objective: Comments regarding futurism and portraying the future development lead trends in the field of planning and rational exploitation of resources. Ghoorichay is one of the catchments in the north of Ardabil province that has critical role in local people’s livelihood. The purpose of this study was to evaluate ecological land capability and determine the suitability rate for agriculture and range activities in Ghoorichay catchment. Method: First, by reviewing of the sources, the agriculture capability evaluation criteria were defined. In the next step, all of the criteria were imported to the Geographic Information System (GIS) with the same format and were standardized. Then, Analytical Hierarchy Process (AHP) and binary comparison matrix were used to weight to the criteria and sub criteria and finally, all of the criteria were combined using Weighted Linear Combination (WLC) method. Findings: Based on the results 9811/42 hectares (82/85%) for agricultural activity and 2-27/31 hectares (17/15%) for rangeland activity have potential. Discussion and Conclusion: According to the results, there is not a balanced relationship between current land uses and the land ecological capability for agriculture and range management in the study area.  

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