NFI: Topics by tree species (5 classes)

The National Forest Inventory (NFI) is a periodic survey of condition and development of the Swiss forest. It is produced in close cooperation between the Federal Office for the Environment (FOEN) and the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL). This record contains information about: growing stock (stemwood), growing stock (stemwood) per forest area, total wood volume (stemwood), total wood volume (stemwood) per forest area, volume of deadwood (stemwood), volume of deadwood (stemwood) per forest area, total basal area per forest area, total number of stems, total number of stems per forest area, number of stems, number of stems per forest area and basal area per forest area国家森林资源清查（National Forest Inventory, NFI）是针对瑞士森林现状与发展动态开展的周期性调查项目，由瑞士联邦环境办公室（Federal Office for the Environment, FOEN）与瑞士联邦森林、雪与景观研究所（Swiss Federal Institute for Forest, Snow and Landscape Research, WSL）紧密协作完成。本数据集包含以下信息：活立木主干木材蓄积、单位森林面积活立木主干木材蓄积、总主干木材蓄积、单位森林面积总主干木材蓄积、枯立木主干木材蓄积、单位森林面积枯立木主干木材蓄积、单位森林面积总断面积、总林木株数、单位森林面积总林木株数、林木株数、单位森林面积林木株数以及单位森林面积林木断面积。