Phenology, Leaf and Twig Growth Pattern and Leaf Nitrogen Dynamics of Some Multipurpose Tree Species of Himalaya:

Abstract

This study was camied out to determine the suitability of commonly occurring multipurpose tree species (MPTS) found in the Central Himalayan region for agroforestry practices. To meet this objective, periodicity of major phenophases, leaf and twig growth pattern and leaf nitrogen dynamics of five MPTS of Kumaun Himalaya were studied. These species grow in and around the cropfields and were utilized by the inhabitants for centuries. In general, our analyses indicate that the phenophases occur in such a fashion that competition with agricultural crops for soil, water, nutrients and sunlight is minimal. Their wide distribution range over varied habitats, short stature and profuse branching suitable for lopping, high foliage biomass production, capacity to provide firewood of high calorific value, fodder of high protein during lean months, etc. and addition of a large amount of nitrogen to soil through litterfall are reasons why villagers have selected them after a long period of trial and error. These same c...