Acquisition of a Carbon-Nitrogen-Sulfur Analyzer

0337134 Anislam该补助金为购买固体样品的碳-氮-硫（CNS）分析仪提供部分支持。 该仪器将取代耶鲁大学林业和环境研究学院的一台过时的CHN分析仪，该分析仪已无法使用。 该网络将支持林业、土壤科学和海洋化学等学科的研究和教育。 CHN研究用途的具体实例包括：o测量盐沼沉积物和植被的C和N含量，以了解沼泽的增长和损失过程及其对沿海水质的影响o测量河流悬浮沉积物的S含量，以更好地了解含氧表层沃茨的S循环及其对微量金属形态的影响o测量河流悬浮沉积物的C和N含量，以补充同位素研究，以了解颗粒有机碳的来源和生物利用度o测量土壤和植物材料的C和N含量（包括木质组织）为了评估哈伯德布鲁克实验林养分状况变化的影响，为了了解对幼苗发育和树木健康的生态和生理控制，森林土壤和植被，以评估这些生态系统中的碳固存。

0337134AnisfeldThis grant provides partial support for the acquisition of a Carbon-Nitrogen-Sulfur(CNS) analyzer for solid samples. This instrument would replace an antiquated CHN analyzer in the School of Forestry and Environmental Studies at Yale University which is no longer operable. The CHN would support research and education in fields spanning disciplines of forestry, soil science and marine chemistry. Specific examples of research uses of the CHN will include:o measurement of C and N content of salt marsh sediment and vegetation in order tounderstand marsh accretion and loss processes and their implications for coastal water qualityo measurement of S content of riverine suspended sediment in order to better understand the S cycle in oxygenated surface waters and its impact on trace metal speciationo measurement of C and N content of riverine suspended sediment to supplement isotopicstudies aimed at understanding sources and bioavailability of particulate organic carbono measurement of C and N content of soil and plant material (including woody tissue) in order to assess the effects of changing nutrient status at the Hubbard Brook Experimental Foresto measurement of foliage N content in order to understand the ecological and physiological controls on seedling development and tree healtho measurement of C and N content of tropical forest soils and vegetation in order to assess C sequestration in these ecosystems.***