Seasonal Variability of Rainfall Interception and Canopy Storage Capacity Measured under Individual Oak (Quercus brantii) Trees in Western Iran
- سال انتشار: 1391
- محل انتشار: مجله علوم و فناوری کشاورزی، دوره: 15، شماره: 1
- کد COI اختصاصی: JR_JASTMO-15-1_016
- زبان مقاله: انگلیسی
- تعداد مشاهده: 132
نویسندگان
Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Islamic Republic of Iran.
Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Islamic Republic of Iran.
School of Forest Resources and Environmental Science, Michigan Technological University, U. S. A.
Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Islamic Republic of Iran.
Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Islamic Republic of Iran.
چکیده
While the hydrological balance of forest ecosystems has often been studied, quantitative studies on the seasonal variability of rainfall Interception (I) and Canopy Storage Capacity (S) by individual trees are less frequently reported. Hence, the effects of the seasonal variation in I and S by individual Persian oak trees (Quercus brantii var. Persica) in the Zagros forests of Iran were studied over a ۱-year period. Annually, I accounted for ۸۴.۹ mm (۲۰%) of Gross Rainfall (GR) that significantly differed between the in leaf (۴۷.۴ mm or ۳۰% of GR) vs. leafless (۳۷.۷ mm or ۱۴% of GR) periods. Negative logarithmic correlations existed between I:GR and GR both for in leaf (r۲= ۰.۸۰۸) and leafless (r۲= ۰.۷۰۹) periods.An indirect method, outlined by Pereira et al. (۲۰۰۹), estimated S to be ۱.۵۶ mm in the in Leaf Period (LP) and decreased considerably to ۰.۵۶ mm in the Leafless Period (LLP). The results indicate that while I decreased during the LLP, it still exerts considerable influence on the hydrology of forests. Hence, measurement of I in both the LP and LLP is essential when assessing the water balance on the catchment scale.کلیدواژه ها
In leaf period, Leafless period, Pereira method, Rainfall interceptionاطلاعات بیشتر در مورد COI
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