On the growth of trees planted in the reclaimed land soil

Abstract

This study aims at the finding out some trees suitable to the reclaimed land soil in Hachirogata lagoon.
For this experiment 7 species were prepared: Populus nigra var, italica, Zelkova serrata, Ulmus Davidiana var, japonica, Platanus orientalis, Robinia pseudoacacia, Pinus thnubergii and Cryptomeria japonica.
The results obtained were as follows:
(1) All trees except Populus grow better in the plot covered with field soil by 15cm and 30cm deep than in the reclaimed land soil.
2) Only Populus shows the best growth in the reclaimed land soil.
(3) Fertilization effect can not yet be seen in this experiment.
(4) Generally speaking, Populus and Pinus are comparatively suitable species in the reclaimed land soil.