Explains all the processes involved in the growth of trees
Textbook in the field of tree physiology

This is a completely revised edition of the existing 『Tree Physiology』, supplemented with recent research data and newly edited.
To grow trees efficiently and healthily, you must first understand how trees grow.
This book explains what metabolism is involved in the process of tree growth, and describes the structure and growth characteristics of trees growing alone or in forests, photosynthesis, respiration, carbohydrate, protein, and lipid metabolism, water physiology and transpiration, sap elevation, mineral salt absorption, inorganic nutrition, sexual reproduction and flowering, seed physiology, plant hormones, afforestation and non-vegetative physiology, the response and adaptation of trees to environmental changes, and various stress physiologies.

Trees are living trees, and when they form a forest, they are called forest trees.
Traditional plant taxonomists classify plants according to phylogeny based on morphological characteristics, but for convenience, if seed plants are broadly divided into herbaceous plants and woody plants, trees are classified as woody plants.

--- p.17

Cells come together to form tissues, and tissues are groups of similar cells that perform unique functions.
The epidermis is a collection of cells that make up the outermost surface of a young tree, and the cork tissue later replaces the epidermis and serves to protect the surface.
The xylem is responsible for the movement of water, the phloem is responsible for the movement of carbohydrates, and other secretory tissues secrete resin, etc.

--- p.31

Geotropism (or positive gravitropism) refers to the growth of plants in the direction of gravity, and mainly explains the principle of roots growing into the soil.
When you sow pine seeds, the first radicle to emerge grows into the ground, away from sunlight, and becomes the main root.

--- p.108

If any one of the 17 essential elements is lacking, the plant will show deficiency symptoms.
However, trace element deficiencies are not commonly observed in forests, except for iron (Fe).
Common visible signs of essential nutrient deficiencies include stunted growth, chlorosis, chlorosis, small spots, irregular blotches, twisting, tissue necrosis, and premature leaf fall.

--- p.255

When leaves are large, they receive sunlight and their temperature rises, so they do not cool down easily, which increases transpiration.
Therefore, a compound leaf with multiple leaflets is more helpful in reducing transpiration than a large simple leaf.

--- p.300

When air pollution is very mild, it may not cause any damage to trees or may even promote their growth.
However, if the level of pollution increases chronically, it directly reduces the growth of trees by interfering with photosynthesis and absorption of inorganic nutrients, or it damages the health of trees, causing secondary pest and disease infections.
More severe or acute air pollution can kill trees.

--- p.491