Poplar Biomass by Allometric Equations at the Kellogg Biological Station, Hickory Corners, MI (1989 to 2012)

Poplars are grown as cellulose crop at the Main Cropping System Experiment. The first rotation was planted at a stocking density of 1 tree per 2 square meter. After the first harvest the trees were allowed to coppice. After the second harvest the trees were replanted. The third rotation was planted at 1 tree per 3.6 square meter. For the first two rotations the species planted was Populus nigra x P. deltoids hybrid for the third rotation it is Populus nigra x P. maximowiczii.
original data source http://lter.kbs.msu.edu/datasets/120 Resources in this dataset:Resource Title: Website Pointer to html file. File Name: Web Page, url: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-kbs&identifier=120 Webpage with information and links to data files for download

白杨树作为纤维素作物在主种植系统实验中被栽种。首次轮作以每平方米种植2棵树的密度进行种植。首次收获后，树木被允许进行短轮伐。第二次收获后，树木被重新种植。第三次轮作以每平方米种植3.6棵树的密度进行种植。前两次轮作种植的树种为黑杨（Populus nigra）与美洲黑杨（P. deltoids）的杂交种，第三次轮作则种植了黑杨（Populus nigra）与大叶杨（P. maximowiczii）的杂交种。