Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Iran → Compariosn of canopy ecohydrological parameters in a Picea abies plantation and natural stand of a Fagus orientalis in the Hyrcanian forest, Northern Iran

University of Mohaghegh Ardabili (2017)

Compariosn of canopy ecohydrological parameters in a Picea abies plantation and natural stand of a Fagus orientalis in the Hyrcanian forest, Northern Iran

Nezamdoost, Hamed and Sefidi, Kiomars and Rasoulzadeh, Ali and Moein Sadeghi, Seyed Mohammad

Titre : Compariosn of canopy ecohydrological parameters in a Picea abies plantation and natural stand of a Fagus orientalis in the Hyrcanian forest, Northern Iran

مقایسه پارامترهای اکوهیدرولوژیک تاج¬پوشش توده¬ی دستکاشت پیسهآ و جنگل طبیعی راش در ناحیه رویشی هیرکانی (جنگل¬های سیاهکل، استان گیلان)

Auteur : Nezamdoost, Hamed and Sefidi, Kiomars and Rasoulzadeh, Ali and Moein Sadeghi, Seyed Mohammad

Université de soutenance : University of Mohaghegh Ardabili

Grade : Master 2017

Résumé
Compution of rainfall partitioning into throughfall, stemflow, and interception and also canopy ecohydrological parameters are an important component of the water cycle in forest ecosystems and helps to forest managers due to selection of appropriate plant for planting in each region and conducting silvicultural treatment (e.g., thining, pruning). The aim of this research was to estimate the ecohydrological parameters of the canopy including estimated canopy saturation point, canopy (water) storage capacity, the ratio of mean evaporation rate from the wet canopy to the mean rainfall intensity, and free throughfall coefficient of a natural Fagus orientalis stand and a Picea abies plantation in Siahkal, Gilan province, north of Iran. To measure throughfall, 60 rain-gauges were installed beneath the crown of the satnd, and stemflow was measured using average of 9 individual trees equaled to the stemflow amount. Over the measurement period, for the F. orientalis stand the cumulative percentage of throughfall, stemflow, and interception were 78.2, 10.1, and 11.7%, respectively. For the P. abies stand, the corresponding values were 72.1, 4.6, and 23.3%. For the F. orientalis stand, abovementioned canopy ecohydrological parameters were found to be 1.8 mm, 0.46 mm, 0.57, and 0.16, respectively. For the P. abies stand, these values were found to be 3.1 mm, 0.94 mm, 0.34, and 0.17, respectively. The ecohydrological parameters should be considered while converting natural stands to plantations by exotic tree species as this altering would change soil humidity, soil pedogenesis, as well as forest floor composition

Présentation

Version intégrale (0,4 Mb)

Page publiée le 25 avril 2020