همکاری با انجمن علمی مدیریت و کنترل مناطق بیابانی ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار پژوهش، مرکز تحقیقات کشاورزی و منابع طبیعی استان هرمزگان، سازمان تحقیقات، آموزش و ترویج کشاورزی، بندرعباس، ایران

2 استادیار پژوهشی، بخش تحقیقات مرتع، موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

چکیده

این بررسی به منظور نشان دادن رفتار رویشی گونه‌های   Aeluropus lagopoides، bipinnata Desmostachya  ،    Halocnemum strobilaceum ، Alhagi graecorum و Atriplex leucoclada در طی سال‌های 1386 تا 1389 در مرتع زمین‌سنگ استان هرمزگان انجام شد. تعیین تولید و مصرف با استفاده از پایه‌هایی با اندازه متوسط انجام شد و هر ساله تعداد 5 پایه متوسط از گیاه به ازای همه ماه‌های فصل رویش و چرا در داخل محدوده قرق برای اندازه‌گیری تولید و به همین تعداد در عرصه چرا برای اندازه‌گیری باقیمانده تولید منظور گردید و از تفاضل آن‌ها مقدار مصرف مشخص شد. نتایج نشان داد که سال‌ها و ماه‌های مختلف تأثیر معنی‌داری بر تولید و مصرف گونه‌های مورد بررسی داشته است (05/0P<).  داده‌های سال‌های 1389-1386  نشان داد که تولید متوسط پنج گونه دائمی مورد بررسی در منطقه 8/125 کیلوگرم علوفه خشک در هکتار و سهم گونه Halocnemum strobilaceum و bipinnata Desmostachya  در تولید بالا و به ترتیب به میزان 9/52 و 7/22 درصد کل علوفه بود. میزان مصرف گونه‌ها در منطقه 4/32 کیلوگرم علوفه خشک در هکتار و بیشترین سهم مصرف متعلق به گونه‌های Halocnemum strobilaceum و Alhagi graecorum و به ترتیب به میزان 8/41 و 1/30 درصد کل علوفه بود. بیشترین میزان تولید در سال 1387 با 7/162 کیلوگرم علوفه خشک در هکتار بود که 8/1 برابر بیشتر از سال کم‌تولید (1388) بود. بیشترین میزان مصرف در سال 1389 با 7/35 کیلوگرم علوفه خشک در هکتار بود. در تمامی سال‌ها و در همه گونه‌ها بیشترین میزان تولید و مصرف علوفه در فروردین‌‌ماه بود.

کلیدواژه‌ها

عنوان مقاله [English]

Production and consumption changes of range plants in Zaminsang Rangelands of Hormozgan province

نویسندگان [English]

  • Mohammad Amin Soltanipour 1
  • Saeedeh Nateghi 2
  • Mahshid Souri 2
  • Nadia Kamali 2

1 Assistant professor, Hormozgan Agricultural and Natural Resources Research Center, Agricultural Research Education and Extension Organization (AREEO), Hormozgan, Iran

2 Assistant professor, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran

چکیده [English]

     This study was conducted to demonstrate the growth behavior of Aeluropus lagopoides, Desmostachya bipinnata, Halocnemum strobilaceum, Alhagi graecorum and Atriplex leucoclada in the Zaminsang rangelands of Hormozgan provinceduring 2007 to 2010. Determination of the production and consumption were done by the individuals in medium size. In each year, five medium individual of plant were selected for all months of growing and grazing season in exclosure area for measuring the production and the same number in the grazing range considered for measuring the production residue and from difference between them, the consumption was identified. Results indicated that different years and months had significant effect on production and consumption of the study species (p<0.05). According to the obtained data from the experiment indicated that, the average production of five perennials species was 125.8 kg dry forage per hectare. The highest production rate was obtained from Halocnemum strobilaceum and Desmostachya bipinnata in amount of 52.9% and 22.9% of total forage production, respectively. The average consumption of the species was 32.4 kg dry forage per hectare. The highest consumption rate was dedicated to Halocnemum strobilaceum and Alhagi graecorum, with amount of 41.8% and 30.1% of total forage consumption, respectively. The highest production rate was obtained from 2008 with 162.7 kg dry forage per hectare which was 1.8 times higher than low-production in 2009. The highest consumption rate for all species was 35.7 kg dry forage per hectare in 2009. The highest forage production and consumption were obtained in May in all species during the years.
 

کلیدواژه‌ها [English]

  • Utilization percentage
  • forage
  • grazing season
  • halophyte range plants
  • Hormozgan province
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