Fragmented Habitats Leads to Improper Nutrient Cycling in Indian
The study was carried out in a tropical dry deciduous forest known as Matha Protected forest (MPF) of West Bengal, India, which is fragmented into two patches (plot A and plot B). Biotic factors (viz. fire, grazing, forest felling, sweeping of forest floor, illegal hunting) accelerate the process of habitat fragmentation, which is also based on patch size, patch isolation and patch interaction. MPF mainly covers sal (Shorea robusta. L.) and sidha (Lagerstroemia parviflora. L.). The objective of the present study is to determine the distribution of nutrient content in green leaf, leaf litter and soil to improve the understanding of flow of nutrients and their losses within the ecosystem that will give information for effective forest management strategies. From analysis it is revealed that P use efficiency is enhanced than N and K for S. robusta, while K use efficiency is higher than P and N in L. parviflora. We found site-dependent and between-species differences in nutrient content and nutrient remobilization. Above all, plot A shows decreased Nutrient Use Efficiency (NUE) and Nutrient Retranslocation Efficiency (NRE) than plot B which in turn depicts nutrient (P and K) limitation at plot B. Therefore, fragmented habitats influence the rate of nutrient cycling in forest.
BISWAS Saroni KHAN Dilip Kumar
Department of Environmental Science, University of Kalyani, P.O.Kalyani, Nadia, PIN-741235, West Bengal, India
国际会议
2011 International Symposium on Environmental Science and Technology(2011 环境科学与技术国际会议 2011 ISEST)
广东东莞
英文
17-23
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）