پایان نامه اثر درجات مختلف دفن در ماسه بادی بر بعضی از خصوصیات فیزیولوژیکی و رویشی گونه‌های قره داغ و رمس

فهرست:

عنوان                                                                                              صفحه

فصل­اول مقدمه و­کلیات.. 1

1-1 مقدمه. 2

1-2 ضرورت ­انجام تحقیق.. 5

1-3 اهداف­ اصلی ­تحقیق.. 5

1-4 فرضیه‌های ­تحقیق.. 6

1-5 کلیات.. 6

1-5-1 تعریف ­فرسایش... 6

1-5-2 تعریف­ نبکا 6

1-5-3 نقش­ پوشش­گیاهی درتشکیل ­نبکا 6

1-5-4 مکانیسم ­درختان ­و درختچه­ها در برابر تشکیل ­نبکا 7

فصل­دوم­ مروری­ بر منابع. 19

2-1 مطالعات­ انجام­ شده­ در ایران. 20

2-2 مطالعات­ انجام ­شده ­درخارج ­از ایران. 21

فصل­ سوم ­مواد و روش­ها 27

3-1 گونه­های ­مورد مطالعه. 28

3-1-1 قره­داغ. 28

3-1-2 رمس... 28

3-2 روش ­تحقیق.. 28

3-2-1 اندازه­گیری ­مقدار پرولین.. 29

3-2-2 اندازه‌گیری ­مقدار اکسین  IAA.. 30

3-2-3 اندازه‌گیری ­قندهای ­محلول. 30

3-2-4 اندازه‌گیری­ مقدار پتاسیم ­و سدیم. 31

3-2-5 اندازه‌گیری ­مقدار فسفر. 31

3-2-6 روش­آنالیز داده‌ها 31

فصل چهارم نتایج.. 24

3-3-1 نتایج ­قره­داغ. 34

3-3-2 نتایج­رمس... 37

     فصل پنچم بحث ونتیجه گیری ،پیشنهادات...............................................................38

       5-1بحث..................................................................................................................................................39

       5-2نتیجه گیری.....................................................................................................................................42

       5-3پیشنهادات.......................................................................................................................................43

   منابع….……………………...………………………………………….­44

منابع­فارسی

منابع­لاتین

منبع:

احمدی، ح.(1387). "ژئومرفولوژی کاربردی (بیابان-فرسایش بادی)"، جلد دوم، تهران، انتشارات دانشگاه تهران، چاپ سوم.

اختصاصی، محمدرضا، فرسایش بادی و روش‌های کنترل آن، جزوه درسی، دانشگاه یزد،1382.

اختصاصی، محمدرضا، گیاهان مناسب تثبیت تپه‌ها و پهنه‌های ماسه‌ای در ایران، انتشارات دانشگاه یزد،1388.

اصغرنژاد، ع.(1383). مقایسه خصوصیات گونه­های تاغ جهت اصلاح و گسترش آن در عرصه­های بیابانی. مجله پژوهش و سازندگی. شماره 67، صفحه 51 تا 57.

ایمان طلب، ن. (1389). "بررسی فرایند رشد گونه کلیر و شکل گیری نبکا در شرق جاسک". پایان­نامه ارشد. دانشگاه یزد.

خلیلی، علی، اقلیم خشک و فراخشک ایران، محموعه مقالات اولین سمینار بررسی مسائل مناطق بیابانی و کویری ایران، دانشگاه تهران، 1371.

طرح شناسایی کانون­های بحرانی فرسایش بادی کشور، سازمان جنگل‌ها، مراتع و آبخیزداری، دفتر تثبیت شن و بیابان‌زدایی،1381.

قویدل رحیمی، ی.(بی تا) " قابلیت­های گیاه آتریپلکس در بهبود شرایط­ بیابانی و جلوگیری از گسترشبیابان". مجله دانش جغرافیا. شماره 4 و 5، صفحه 11- 15.

مصلح آرا نی، ا. (1388)."نقش گیاه لگجی (علف مار) و اهمیت آن در فرسایش بادی (حفاظت خاک) و ایجاد نبکا"، طرح مصوب دانشگاه یزد.

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