برآورد اتلاف تاجی، ساقاب و تاج‌بارش در توده طبیعی راش شرقی (جنگل شصت‌کلاته)

نوع مقاله : علمی- پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد جنگل‌داری، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

2 دانشیار، دانشگاه علوم کشاورزی و منابع طبیعی

چکیده

در این پژوهش اندازه‌گیری مقادیر بارش، ساقاب و تاج‌بارش از آبان 1384 تا آبان 1385 در توده راش واقع در سری یک جنگل شصت‌کلاته گرگان از جنگل‌های هیرکانی انجام شد. ارتفاع بارش در این دوره 1/827 میلی‌متر بود. تعداد 31 اصله درخت به‌طور تصادفی انتخاب شدند. بعد از هر بارش مقادیر ساقاب و تاج‌بارش هر درخت اندازه‌گیری شد. تاج‌بارش و ساقاب به‌ترتیب40 و3/0 درصد از بارش بودند. اتلاف تاجی (تفاوت میان بارش و مجموع ساقاب و تاج‌بارش) 7/59 درصد بارش کل بود. رابطه میان بارش با ساقاب، تاج‌بارش و اتلاف تاجی بررسی شد.

کلیدواژه‌ها


عنوان مقاله [English]

Estimating of interception loss, stemflow and throughfall in a natural stand of oriental Beech (Shastkalateh forest)

نویسندگان [English]

  • Somayyeh Ghorbani 1
  • Ramin Rahmani 2
1 M.Sc. student of forestry, Gorgan University of Agricultural Sciences and Natural Resources
2 Associate Prof., Gorgan University of Agricultural Sciences and Natural Resources.
چکیده [English]

     In this study, measurements of precipitation, throughfall and stemflow fluxes were conducted from November 2005 through November 2006 within a natural stand of oriental beech (Fagus orientalis Lipsky) in district 1, Shastkalateh, Hyrcanian forests.Total precipitation in this period was 827.1 mm year−1. A sample of 31 trees was randomly selected. Throughfall and stemflow of each tree were collected after every precipitation. Throughfall and stemflow fluxes represented 40% and 0.3% of the precipitation, implying that interception loss (the difference between precipitation and sum of throughfall and stemflow) was 59.7%. Relation between throughfall, stemflow and interception with precipitation was invistigaited.
 

کلیدواژه‌ها [English]

  • precipitation؛ stemflow
  • throughfall
  • interception
  • modeling
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