Biotic and abiotic environmental conditions in two study sites on the ridge of Mt. Hachiman at the Hakkoda mountain range, Aomori Prefecture.

Data about
results of forest census and measurements data of abiotic environmental conditions
in two study sites on the ridge of Mt. Hachiman at the Hakkoda mountain range,
Aomori Prefecture. Surveys and measurements were conducted from 2017 to 2019. At
the time of forest census, there were 875 individuals (18 tall tree species)
and 297 individuals (13 tall tree species) in “Forest site” (0.4 ha) and “Shrub
site” (0.1 ha), respectively. In the data, individual densities, basal areas,
and logarithmic transformed values for the basal area were summarized for each
of Fagus crenata, Quercus crispula, and other species in each
plot. Also, soil moisture content, maximum snow depth and slope angle are shown
for each plot as abiotic environmental conditions. The center of the study site is located at 40.70046944 N, 140.99795555 E for “Forest site” and 40.69936388 N, 140.99813888 E for “Shrub site”.

本数据集收录了位于青森县八甲山山脉Hachiman山脊上两个研究区域的森林普查结果及非生物环境条件测量数据。研究时段为2017年至2019年。在森林普查期间，“森林区域”（面积0.4公顷）共有875株树木（包括18种高树树种），而“灌木区域”（面积0.1公顷）则有297株树木（包括13种高树树种）。数据中总结了每个样地中各树种的个体密度、基面积及其对数变换后的基面积。此外，每个样地的土壤含水量、最大积雪深度和坡度角度等非生物环境条件亦被展示。研究区域的中心坐标分别为‘森林区域’的北纬40.70046944度，东经140.99795555度，以及‘灌木区域’的北纬40.69936388度，东经140.99813888度。