Above ground biomass and litter productivity in relation with carbon and nitrogen content in various landuse small watershed, Lower Northern Thailand
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2013, Vol 3, Issue 8
Abstract
There have been few studies quantifying litterfall and litter decomposition in relation to carbon and nitrogen return to the soil in upland areas following forest conversion to agriculture such as with the establishment of Para rubber tree plantations. Mean annual litterfall production, litter decomposition rates and carbon and nitrogen returns in a secondary mixed deciduous forest were significantly higher than in a Para rubber tree plantation. The aboveground biomass carbon of the tree such as stems, branches and leaves have been collected and dried at laboratory, and the dry biomass of different sections of the tree are presented in Table 5. The result of carbon analysis through CHN Analyzer is presented in Table 6. It is observed with mixed deciduous forest for Haldina cordifolia that average leaf, stem and branch contained 43.32, 47.49, and 46.01% carbon, respectively. For Albizia odoratissima, average leaf, stem and branch contained 46.34, 45.98 and 46.61 % carbon, respectively. For Lagerstroemia duperreana, average leaf, stem and branch contained 47.61, 47.96 and 46.88 %. For Croton roxburghii, average leaf, stem and branch contained 45.29, 47.53 and 45.68 %. It is observed in para rubber plantation for Hevea brasilliensis that average leaf, stem and branch contained 51.20, 50.66, 49.83 %.
Authors and Affiliations
Chattanong Podong, Roongreang Poolsiri
Keywords
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