スギおよびヒノキの枝打が幹の生長におよぼす影響

概要

論文の詳細を見る
Although growth of trees were influenced by pruning of live limbs (Introduction), the degree was chiefly controlled by removed amount of the leaves and their physiological function. In order to investigate the effect of pruning on the growth of trees, therefore, these relations must be fully determined. The trees should be distinguished into the sun or the shade crown in the closed stands, as light intensities remarkably vary with location of leaves in the crown and by studying a relation of leaves amount between the sun and the shade crowns, the rate of photosynthesis in the former or the latter, the CO2 assimilation connected there with and their structure and elements, the effect of pruning on growth could be decided to a certain extent.
東京大学大学院農学生命科学研究科附属演習林の論文
1954-01-00