Study on Effects of Open Grazing and Planted Treatments on Runoff Generation

Document Type : Research Paper

Authors

1 Head and Assistant Professor Department of Watershed Management Engineering , College of Natural Resources and Marine Sciences , Tarbiat Modarres University, Noor

2 Former M.Sc. Student Department of Range Management Engineering, College of Natural Resources

3 Professor, College of Natural Resources, University of Mazandaran, Sari,

Abstract

The natural resources of the country have been seriously damaged in recent decades and resulting many dire consequences such as water deficiency, floods and land degradation. In this research, in order to study the effects of open grazing management and alfalfa cultivation on runoff generation, the Matash region located in Talesh mountainous spring-fall rangeland with area of 500 ha was selected. To achieve the study objectives, three plots in dimensions of 1.83×22.18 meters were established in three replications in each area. The results of storm water among replications and in two above-mentioned areas were then compared using ANOVA and paired sample t-Test, respectively. The relationship between vegetation variations and rainfall characteristics was also investigated in terms of runoff generation in two study treatments. The results have shown that there is a significant difference in runoff generation in two above-mentioned areas at the confidence level of 99%, whereas no significant difference was found among replications. The results of runoff generation was also found to be 5.5 folds more in case of open grazing treatment comparing with those generated by planted plots. From the results of regression analyses and the amounts of estimation errors, it has been also implied that runoff quantity could be significantly affected by rainfall only under open grazing plots. 

Keywords

References

  1. رئیسیان، روانبخش و اسدی، سید مجتبی، 1382. بررسی اثرتغییرات پوشش گیاهی و شیب در رسوبدهی، گزارش طرح پژوهشی، مرکزتحقیقات منابع طبیعی و امور دام استان چهار محال و بختیاری، 54 ص.
  2. سیاه منصور، رضا، 1377. بررسی رابطه بین فاکتورهای پوشش گیاهی، روانآب، فرسایش وحاصلخیزی خاک مرتع، پایان نامه کارشناسی ارشد مرتعداری، دانشگاه تربیت مدرس، 123 ص.
  3. شیخ الاسلامی، هادی، 1370. بررسی تاثیر تغییرات ارتفاع، شیب و پوشش گیاهی در تغییر و تحول خاکهای منطقه اسالم، پایان نامه کارشناسی ارشد، دانشکده کشاورزی دانشگاه تهران، 175 ص.
  4. صادقی، سید حمید رضا، نجفی، درعلی و وفاخواه، مهدی، 1383. بررسی نقش تغییر کاربری اراضی بر فرسایش خاک (مطالعه موردی: منطقه لنجان علیا در استان اصفهان)، اولین کنفرانس سراسری آبخیزداری و مدیریت منابع آب و خاک، کرمان، 20-21 اردیبهشت 1383، 115-123.
  5. قادری وانگاه، بابک، 1384. مقایسه برخی خصوصیات فیزیکی و شیمیایی خاک در مراتع تحت چرای طبیعی و مناطق دست کاشت، سمینار کارشناسی ارشد رشته مرتعداری، دانشگاه تربیت مدرس، 59 ص.
  6. مصداقی، منصور، 1382. مرتعداری در ایران، چاپ چهارم، انتشارات آستان قدس رضوی، 333 ص.
  7. مقدم، محمد رضا، 1377. مرتعداری در ایران، چاپ اول، انتشارات دانشگاه تهران،470 ص.
  8. مزین، ملیحه، 1382. بررسی روابط اجزای مختلف بارندگی و روانآب در حوزه آبخیز کسیلیان، پایان نامه کارشناسی ارشد آبخیزداری، دانشگاه تربیت مدرس، 74 ص.
  9. مهدوی، محمد، 1378. هیدرولوژی کاربردی، جلد دوم، چاپ پنجم، دانشگاه تهران، 401 ص.
  10. Bagarello, V. and Asaro, F.D., 1994. Estimating single storm erosivity index, Transaction of the ASAE, 31(3): 785-791
  11. Bari, F., Wood, M.K., and Murray L., 1995. Livestock grazing impacts on interrill erosion in Pakistan, J. of Range Management, 48: 251- 257.
  12. Bennett, H.H., 2001. Soil conservation, Agrobios, New Delhi, 993pp.
  13. Cooke, J. W., 1985. Effect of fallowing practices on runoff and erosion rates, Australian J of Soil Research, 21(1): 33-46.
  14. Das, G., 2000. Hydrology and soil conservation engineering, Asoke, K., Ghosh, prentic-Hall of India, 489pp.
  15. Emmerich, W.E. and Heitschmidt, R.K., 2001. Grazing, burning, and drought influences on rangeland ecosystem sustainability, In: 10th International Soil Conservation Organization Meeting Proceeding, Edited by Scott, Motar R.H. and Steinhardt G.C. 261- 265.
  16. Gamougoun, N.D., Smith, R.P., Wood, M.K., and Pieper, R.D., 1984. Soil, vegetation and hydrologic responses to grazing management at Fort Stanton, New Mexico. J. of Range Management, 37(6): 538- 541.
  17. Haan, M. M., Russell, J. R., Powers, W., Boehm, J. L., Mickelson, S. and Schultz, R., 2005. Impacts of cattle grazing management on sediment and phosphorus loads in surface waters, Iowabeefcenter, org/ pdfs/ BRR/ R1921. pdf.
  18. John, A.D., Kenneth P., Wadell N.A., Hugh A., and Russell S., 2002. Long-term grazing density impacts on soil compaction. United States Department of Agriculture Service, 4: 13-18.
  19. Loch, R.J., 2000. Effects of vegetation cover on runoff and erosion under simulated rain and overland flow on a rehabilitated site on the Meandu Mine, Tarong, Queensland, Australian Journal of Soil Research, 38(2): 299-312
  20. Mcginty, W.A., Smeins, R.E., and Merill, L.B., 1979. Influence of soil vegetation and grazing management on infiltration rate and sediment production of Edward Plateau rangeland, J. of Range Management, 32: 33- 37.
  21. Mwendra E.J. and Mohamed Saleem, M.A., 1997. Hydrologic response to cattle grazing in the Ethiopian highlands, J. Agriculture Ecosystems and Environment, 64: 33-41
  22. Singh, V. P., 1992. Elementary hydrology, Prentic-Hall, India, 973p.
  23. Toy, T.J., Foster, G.R., and Renard, K.G., 2002. Soil erosion: processes, prediction, measurement and control, Jonn Wiley and Sons, 338p.
  24. Warren, S. D., Thurow, T. L., Blaukburn, W. H. and Gera, N. E., 1986. The influence of livestock trampling under intensive rotation grazing on soil hydrologic characteristics, J. of Range Management, 39(6): 491- 495.

 

Iranian Journal of Soil Research
Volume 20, Issue 2
February 2007
Pages 313-323

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