Coarse Litterfall Data at the Hubbard Brook Experimental Forest, 1996 - ongoing

Coarse litterfall (woody litter greater than 2 cm diameter) was collected from cleared plots in the same sites as fine litterfall to quantify total aboveground litterfall in the reference forest. These collections are for quantifying CWD inputs from live standing trees rather than all CWD inputs. Tree mortality and fall rates are used for dead tree inputs. All together these data are used to calculate aboveground production and forest carbon and nutrient budgets. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.

粗调落物（直径大于2厘米的木质调落物）采自与细调落物采样相同的清理样地，用于量化参考林分的地上总调落物量。本次采样旨在量化活立木产生的粗木质残体（Coarse Woody Debris, CWD）输入量，而非所有粗木质残体的输入量。枯立木的死亡率和倒落速率被用于计算枯木的输入量。综合上述所有数据，可用于计算森林地上生产力以及碳与养分收支。本数据集作为哈伯德布鲁克生态系统研究（Hubbard Brook Ecosystem Study, HBES）的一部分收集所得。哈伯德布鲁克生态系统研究是在哈伯德布鲁克实验林开展的合作项目，该实验林由美国农业部（United States Department of Agriculture, USDA）林务局北方研究站运营维护。