LTER: Hubbard Brook Experimental Forest

这个项目将继续在哈伯德·布鲁克实验森林进行长期生态研究(LTER)，以努力提高对环境、干扰、生物活动以及森林景观中能量和物质流动相互影响的总体了解。这个在哈伯德布鲁克和其他地区性地点进行的长期监测和过程水平研究的综合计划解决了两个主题类别的一系列假设：生物地球化学和植被动力学。生物地球化学研究的重点是碳、氮、钙和硫的循环，特别是建立在哈伯德·布鲁克实验流域30多年的通量记录基础上，以解决关于东北部森林中元素循环的几个引人注目和令人惊讶的观察结果。此外，还将扩大对景观尺度上的植被和初级生产力的调查，重点研究树木空间分布、土壤和冰川耕作特性以及氮循环和营养之间的相互作用。这项研究将使用模拟模型并以元素循环的专题概述的形式进行综合和整合。

9810221FaheyThis project will continue the Long-term Ecological Research (LTER) at the Hubbard Brook Experimental Forest in an effort to improve general understanding of the mutual influences of environment, disturbance, biological activity and the flows of energy and materials in forest landscapes. This integrated program of long-term monitoring and process-level studies at Hubbard Brook and other regional sites address a series of hypotheses in two thematic categories: biogeochemistry and vegetation dynamics. The biogeochemical studies focus on the cycles of carbon, nitrogen, calcium, and sulfur and build especially upon a 30+ year record of fluxes from the Hubbard Brook Experimental watersheds to address several striking and surprising observations about element cycling in northeastern forests. In addition, investigations of vegetation and primary productivity at the landscape scale will be expanded, focusing upon the interactions between tree spatial distributions, soil and glacial till properties, and nitrogen cycling and nutrition. This research will be synthesized and integrated using simulation models and in the form of monographic overviews of elemental cycles.