Stand inventories, litter fall and basal area increment at an unmanaged, old-growth mixed beech forest at the ‘Hainich National Park’ (DE-Hai)

The data set contains data of (I) repeated forest inventories, (II) annual litter fall, and (III) annual basal area increment of individual trees. All measurements were done within the footprint area of the eddy-covariance-tower at the ‘Hainich National Park’ (FLUXNET site-ID: DE-Hai). The site is an unmanaged, old-growth mixed beech (Fagus sylvatica L.) forest growing under favorable site conditions (suboceanic-submontane climate; silty-clay Cambisols developed on Triassic limestone covered with Pleistocene loess deposits). The data set is the basis for estimates of net primary productivity (NPP) of wood, leaves and fruits.

本数据集涵盖三类数据：(I) 重复森林调查数据，(II) 年凋落物量数据，以及(III) 单木年断面积增量数据。所有测量均在‘海尼希国家公园’（Hainich National Park）的涡度协方差塔（eddy-covariance-tower）通量足迹区内完成，该站点为通量网络（FLUXNET）观测站点，站点编号为DE-Hai。该站点为未受人为经营的老龄欧洲山毛榉（Fagus sylvatica L.）混交林，生长于适宜立地条件：属亚海洋性-亚山地气候，土壤为发育于覆盖有更新世黄土沉积的三叠纪石灰岩之上的黏壤质雏形土（Cambisols）。本数据集是估算木材、叶片及果实净初级生产力（Net Primary Productivity，NPP）的基础数据。