When looking at the rings of a tree, why is the dense side of the rings south side?

If it is in the northern hemisphere, the dense one goes north, and the sparse one goes south [the reason is that the sun shines directly, moving between the Tropic of Cancer, and in the hemisphere, the south side of the tree faces the sun, and there is better light, so the growth rings grow hypertrophic (that is, sparse), and the north side of the tree is opposite, so it is dense].

In the same way, in the southern hemisphere, it is dense to the south and sparse to the north. The reason is the opposite!

The dense side is the north side, because the south side is sunny and grows fast, while the north side grows slowly, and the annual rings are dense.

The owner of the Qiyu building is sparse in the south and dense in the north.

The cambium grows slowly in winter and fast in summer, so there are dense and annual rings, and the south has the sun shining in summer, and the growth rings are sparse when it grows faster

Of course, it is limited to the northern hemisphere, the southern hemisphere is the opposite, and the tropics should not be obvious, hoping to help you.

It is very likely that this side has been injured In addition, if there are tall trees on the south side, it is bound to grow better in the north, and it will also cause the south to be dense and the north to be sparse.

On the other hand, you say the opposite, the dense side is the north side, because the climate in the north is cold and grows slowly, and the south is hot and grows fast!!

...In the South? What day did the sun rise in the wrong place? Usually in sunny places where the rings of rice are denser and where they have been injured.

Where are the rings of the big tree facing? A trick teaches you to look at the annual rings and identify the direction.

Maybe you're observing a phenomenon in the Southern Hemisphere, right?

The denser ones face north, and the sparse ones face south.

The width of the growth rings provides an understanding of the tree's experience and its relationship to the local environment and climate at the time. In superior climatic conditions, trees grow well and xylem.

The more it increases, the wider the rings, and the narrower the rings are.

For example, the first rings of a tree are generally wide, which means that it is young and vigorous at that time. Sometimes after a tree has many narrow rings, there are suddenly wide rings, which indicates that the environment and climate are suitable for the growth of trees in the years when the rings are wide.

Eccentric growth rings, indicating that the environment on both sides of the tree is different, usually in the Northern Hemisphere.

The south-facing side is warmer than the north-facing side, so the south-facing side has wider growth rings.

Apply. By observing the width and narrowness of the tree's rings, one can learn about the annual climate change in the area.

The width of the annual rings indicates that the climate of the year is better, with abundant rain and sufficient sunshine; Otherwise, it means that the weather was harsh and the temperature was lower than usual. By observing the width and narrowness of the annual rings, the cyclical nature reflected can be used to determine future climate change. Meteorologists can predict future droughts and other natural disasters by outlining climate change.

Able to effectively carry out early prevention.

The side of the tree with dense rings refers to the north. At the same time, the sunny side of the tree grows faster, with a large spacing between the rings and a sparse one. So the dense side points to the north, and the sparse side points to the south.

The sparse rings of the tree are on the south side, and the rings are denser on the north side.

The sparse side of the tree's rings generally faces the sunny side, and the denser side of the tree generally faces the shady side. Therefore, in the northern hemisphere, the sparse side of the tree generally faces south, and the denser side of the tree generally faces north. In the Southern Hemisphere, the sparse side of the tree's rings generally faces north, and the denser side of the tree generally faces south.

The cells and ducts in the tree are repeated once a year from large to small, and the material changes from loose to dense, thus forming a circle of rings with different colors and textures. Concentric rings on the cross section of a perennial woody plant stem. It is commonly found in temperate trees and shrubs, usually once a year.

In temperate regions, the ring boundaries are distinct. In the tropics, the annual rings are not noticeable due to the fact that the climate changes little in a year.

Factors influencing the tree's ring-width

1. The genus of tree species: for example, the growth rings of poplar and tomentosa are wide, and the growth rings of boxwood and dogwood are very narrow.

2. The age of the tree: The growth rings formed by the tree in the early stage of growth are getting wider and wider, but later with the increase of the age of the tree, it will gradually become narrower.

3. Living environmental conditions: For example, the average ring width of a shrub birch at 73 degrees north latitude in Greenland does not exceed a millimeter, but in a botanical garden in central Europe, the average annual ring width of the same kind of birch is a millimeter.