Reserves of Nutrient in the Litter of <I>Pinus patula</I> Plantations in Darjeeling Himalayas

Abstract

The present investigation was carried out to determine the quantity of litter accumulated on the floor of Pinus patula plantations in Darjeeling Himalayas (West Bengal). This study reveals that the density and age of the forest influence greatly the litter accumulation. The thick litter layer, up to to cm in oldest stand (34 years), was differentiated into litter proper and duff. It is a characteristic of humid temperate climate. The litter layer covers the mineral soil as a compact mat af organic matter. Decomposition proceeds in this layer and nutrient intake occurS ill the soil. Thus litter layer becomes much important in the overall nutrient regime of the woodland ecosystem. Ash, Ca, K, N, P and other elements were estimated in the litter of 6 different aged stands and discussed with findings of the other workers_ Emphasis Was given on the nitrogen status since tbe litter is used as natural fertilizer for tbe crops of Darjeeling .