Aboveground Biomass and Carbon Stocks of Tree Species in Tropical Forests of Cachar District, Assam, Northeast India

摘要

The tropical forest biomass plays an important role in global carbon cycle. Estimation of above-ground biomass (AGB) is an essential aspect of carbon stocks. Estimated C pools in different forest types can be used to in making decisions about C management within forests. The present study was carried out in ten tropical forests of Cachar district to estimate AGB, carbon stocks and their relationship with density, basal area and diversity indices. The AGB was ranged from 32.47 Mg ha-1 to 261.64 Mg ha-1 and C-stocks ranged from 16.24 Mg ha-1 to 130.82 Mg ha-1. The small to medium trees contributed more AGB and C-stocks than the large trees. Cynometra polyandra, Artocarpus chama, Sapium baccatum, Ficus bengalensis, Trewia nudiflora, Xerospermum glabratum, Pterygota alata and Semecarpus anacardium were top contributor of AGB and C-stocks in different tropical forests of Cachar district of Assam. AGB showed significant relationship with basal area and diversity indices. The AGB, however, did not show significant relationship with tree densities.