Decomposition and nutrient release patterns of Phyllostachys bambusoides and Arundinaria racemosa, India

作     者：K.Upadhyaya A.Arunachalam K.Arunachalam A.K.Das 

作者机构：Department of ForestryMizoram UniversityAizawl-796004MizoramIndia Department of Agro-ForestryICARPUSANew Delhi-110012India Department of ForestryNorth Eastern Regional Institute of Science and TechnologyNirjuli-791109India Department of BotanyRajiv Gandhi UniversityRono HillsDoimukhItanagar-791111India 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2012年第23卷第2期

页      面：245-252页

核心收录：

学科分类：0907[农学-林学] 08[工学] 0829[工学-林业工程] 09[农学] 

主　　题：decomposition decay constant nutrient release mineraliza-tion immobilization bamboo 

摘      要：We investigated decomposition and nutrient release patterns of leaf and sheath litter of two important highland bamboo species （viz. Phyllostachys bambusoides Sieb. （Zucc.） and Arundinaria racemosa Munro） by using a litter bag technique. Our objective was to improve understanding of the addition of organic matter and nutrients to soil from the litter of two abundant highland bamboo species, species that support the local population of the region in many ways. N concentration and N/P ratio were significantly higher （p〈0.01） in leaf litter of P bambusoides. Significantly, larger values of lignin concentration, C/N ratio, and lignin/N ratio were found in the sheath litter ofA racemosa. Weight loss of both leaf and sheath litter was strongly positively correlated with N and N/P ratio, and significantly negatively correlated 6o〈0.01） with C/N ratio. Lignin/N had a negative correlation with decay rate. In both species, only lignin concentration of the litter showed strong positive correlation with N release. Litter decomposition and N release patterns were similar for the two bamboo species, whereas, P release rate from leaf litter was higher in P bambusoides and differed significantly between sheath and leaf litter for both species. The complex pattern of nutrient release through mineralization and immobilization during litter decomposition ensures nutrient availability in both managed and natural bamboo stands subjected to anthropogenic disturbances.