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ظرفیت ترسیب کربن در اکوسیستم مرتع و ارتباط آن با خصوصیات فیزیکی و شیمیایی خاک در مراتع خوی | ||
تحقیقات کاربردی خاک | ||
مقاله 3، دوره 1، شماره 2، بهمن 1392، صفحه 34-44 اصل مقاله (340.85 K) | ||
نوع مقاله: مقاله پژوهشی | ||
نویسندگان | ||
رقیه قریشی* 1؛ اسماعیل گلی کلانپا2؛ جواد معتمدی3؛ فرشاد کیوان بهجو2 | ||
1دانشجوی کارشناسی ارشد دانشگاه محقق اردبیلی | ||
2استادیار گروه علوم خاک دانشکده کشاورزی دانشگاه محقق اردبیلی | ||
3استادیار دانشکده منابع طبیعی دانشگاه ارومیه | ||
چکیده | ||
افزایش ترسیب کربن در خاک روش بسیار مناسبی در کاهش تراکم CO2 اتمسفری بوده و نقش بسیار مهمی در کاهش مشکلات تغییر اقلیم و آلودگی هوا دارد. در سالهای اخیر این موضوع توجه محققان مختلفی را به خود جلب کرده است. در پژوهش حاضر، ظرفیت ترسیب کربن و ارتباط آن با خصوصیات فیزیکی و شیمیایی خاک در سه مکان مرتعی شهرستان خوی مورد بررسی قرار گرفت. نمونهبرداری خاک در دو عمق 15-0 و 30-15 سانتیمتری انجام شد. مقدار کل کربن آلی ذخیره شده خاک در مکان مرتعی اول، دوم و سوم به ترتیب برابر 89/26، 66/24و 15/18 تن در هکتار برآورد گردید که بیشترین مقدار کربن آلی ذخیره شده متعلق به مکان اول بود. در تمامی مناطق مذکور، بیشترین مقدار کربن آلی خاک مربوط به عمق 30-15 سانتیمتری مشاهده گردید. نتایج رگرسیون گام به گام نشان داد که درصد نیتروژن، جرم مخصوص ظاهری و آهک خاک به ترتیب از مهمترین عوامل تأثیرگذار بر مقدار کربن آلی خاک در مکانهای مورد بررسی میباشد. در حالت کلی، مدیریت بهینه اکوسیستمهای مرتعی نقش مهمی در بهبود ظرفیت ترسیب کربن اتمسفری ایفا میکنند. | ||
کلیدواژهها | ||
ترسیب کربن؛ خصوصیات فیزیکی و شیمیایی خاک؛ مراتع؛ خوی | ||
مراجع | ||
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