Forest Increment Survey at the Kellogg Biological Station, Hickory Corners, MI (1991 to 2017)

Dataset Abstract In 1998, a new protocol was instituted for measuring the diameters of every tree greater than 5 cm dbh in the coniferous and deciduous forest plots. Trees are usually measured in January. Exponential equations are used to estimate tree mass for each year. The goal is to estimate wood production for any given time period (usually one year) as the difference between two estimates of mass. original data source http://lter.kbs.msu.edu/datasets/48

数据集摘要：1998年，一套全新的林木直径测量规程正式启用，用于测定针叶林与落叶林样地内所有胸径（diameter at breast height，简称dbh）大于5 cm的林木。林木测量工作通常于每年1月开展。本研究采用指数方程逐年估算林木生物量，核心目标为通过两次生物量估算值的差值，推算任意给定时段（通常为1年）的木材生产量。原始数据来源：http://lter.kbs.msu.edu/datasets/48