Effects of different livestock grazing intensities on plant cover, soil properties, and above and below ground C and N pools in arid ecosystems (Jiroft rangeland, Iran)
- سال انتشار: 1400
- محل انتشار: مجله تحقیقات منابع زیست محیطی، دوره: 9، شماره: 1
- کد COI اختصاصی: JR_IJERR-9-1_002
- زبان مقاله: انگلیسی
- تعداد مشاهده: 182
نویسندگان
M.Sc. Student of Range Management, University of Zabol, Department of Range and Watershed Management, Zabol, Iran
Associate Professor, University of Zabol, Department of Range and Watershed Management, Zabol, Iran
Assistant Professor, University of Zabol, Department of Soil Sciences, Zabol, Iran
چکیده
This study was conducted in Jiroft rangeland, Kerman, Iran to assess the effects of different livestock grazing intensities (low, moderate, heavy) on ecological factors, soil properties, and root and shoot carbon and nitrogen pools. In each plant sampling site, five points were selected and five quadrates (a total of ۷۵ quadrats) were investigated. Soil surface samples were taken in quadrats (۷۵ samples). Data analysis was carried out by analysis of variance (SPSS۱۸.۰). Findings indicated that canopy cover (۴۶.۲۳%) had the maximum level in the low grazing site. The diversity index was maximum in the overgrazed site (۱.۶۳), while the low grazing site had the minimum species diversity (۱.۲۷). In the three sites, the nitrogen and carbon pools were higher in the roots compared to the shoots. In the low grazing site, the plants' nitrogen and carbon pools were notably more than the heavy and moderate grazing sites. Potassium (۶۱۲.۸۷ mg kg-۱), nitrogen (۳.۳۰ g kg-۱), and organic carbon (۳۹.۲۰ mg kg-۱) were considerably higher under heavy grazing conditions. However, the low grazing condition resulted in notable enrichment of phosphorus (۱۱.۴۴ mg kg-۱). The soil nitrogen and carbon pool in the overgrazed site were higher. In spite of the fact that the soil nutrients in the heavy grazed site were higher because of livestock manure; we could not interpret it as greater soil fertility. Our results suggest that low grazing can be effective for managing plant community and soil quality in arid ecosystems.کلیدواژه ها
Plant–soil interface, Carbon and Nitrogen storage, species diversity, Soil fertility, Arid rangelandsاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.