تأثیر تغییر کاربری اراضی بر برخی از شاخص‌های فیزیکی و شیمیایی کیفیت خاک، منطقه بازفت، (استان چهارمحال و بختیاری)

آب و خاک

مقاله 14، دوره 34، شماره 3 - شماره پیاپی 71، مرداد 1399، صفحه 707-720   

نوع مقاله: مقالات پژوهشی

شناسه دیجیتال (DOI): 10.22067/jsw.v34i3.84914

نویسندگان

محمد مولائی آرپناهی¹؛ محمد حسن صالحی^{* 2}؛ مصطفی کریمیان اقبال¹؛ زهره مصلح²

¹تربیت مدرس تهران

²شهرکرد

چکیده

تغییر کاربری اراضی و شیوه­های مدیریتی زمین علاوه بر تأثیر فراوانی که بر ویژگی­های خاک دارد، می­تواند منجر به از دست رفتن بسیاری از کاربردهای خاک گردد. بنابراین، مطالعات در زمینه اثر مدیریت‌های متفاوت روی ویژگی­های مختلف خاک و در جهت مدیریت پایدار منابع خاک اهمیت فراوانی دارد. در این پژوهش اثر تغییر کاربری اراضی در کاربری­های شامل جنگل بکر، باغ گردو، زمین کشاورزی و جنگل تخریب ‌شده بر برخی از ویژگی های فیزیکی و شیمیایی کیفیت خاک در منطقه بازفت استان چهارمحال و بختیاری با شرایط یکسان از نظر تأثیر فرآیندهای خاک‌سازی مورد بررسی قرار گرفت. برای این منظور از هر کدام از چهار کاربری مورد نظر 10 نمونه خاک (در مجموع 40 نمونه) از عمق صفر تا 30 سانتی­متری در قالب شبکه کاملاً تصادفی جمع‌آوری و ویژگی­های مورد نظر تجزیه شدند. با توجه به نتایج به دست آمده از این پژوهش  می‌توان بیان داشت که تغییر کاربری تأثیر معنی­دار روی تمام ویژگی­های مورد بررسی به غیر از درصد سیلت دارد. به طور کلی تخریب جنگل موجب کاهش شدید کیفیت خاک می‌گردد با این وجود تغییر کاربری از کشاورزی به باغ گردو منجر به بهبود کیفیت خاک می­شود. بنابراین با توجه به حساس و شکننده بودن اکوسیستم‌های منطقه زاگرس جلوگیری از جنگل زدایی به ‌شدت توصیه می­گردد.

کلیدواژه‌ها

تغییر کاربری اراضی؛ کیفیت خاک؛ بازفت

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