Application of regression-based methods for determining canopy ecohydrological characteristics of Picea abies stand in Kelardasht

Message:
Article Type:
Research/Original Article (بدون رتبه معتبر)
Abstract:

The aim of the present study was to estimate the canopy water storage capacity (S) and ratio of mean evaporation rate from the wet canopy to the mean rainfall intensity ( E / R ) and the direct throughfall coefficient (p) of a Picea abies plantation in a semi-humid climate using the regression methods in Kelardasht, North of Iran. To measure gross rainfall (Pg), four rain-gauges were installed in an open space adjacent to the stand and throughfall (Tf) measured using the twenty rain-gauges which randomly located beneath the canopy cover. Rainfall interception (I) was calculated as the difference between Pg and Tf. Twenty-one rainfall events were recorded with a cumulative depth of 380.1 mm. The Tfand Tf% were recorded 48.8% and 39.6% of the incident rainfall on the cumulative-based and event-based (each Pg), respectively. Positive linear correlation was observed between I and Pg (r = 0.92) and logarithmic correlation was established between Tf% and Pg (R2 = 0.43). The mean value of p, S, and E / R were estimated to be 0.34, 2.15 mm, and 0.43, respectively. Awareness of p and S values can be applied for appropriate silvicultural treatments in forest stands with respect to climate and rainfall.

Language:
Persian
Published:
Journal of Renewable Natural Resources Research, Volume:9 Issue: 1, 2018
Pages:
33 to 46
https://www.magiran.com/p2475490  
سامانه نویسندگان
  • Seyed Mohammad Moein Sadeghi
    Author (3)
    Researcher School of Forest, Fisheries, & Geomatics Sciences, University of Florida
    Sadeghi، Seyed Mohammad Moein
اطلاعات نویسنده(گان) توسط ایشان ثبت و تکمیل شده‌است. برای مشاهده مشخصات و فهرست همه مطالب، صفحه رزومه را ببینید.
مقالات دیگری از این نویسنده (گان)