What is the direction of the side with fewer leaves, and what is the direction of the side with more

The leafy side is southern. This is also one of a kind. Natural phenomena can be based on these things, and if we get lost in the forest, we will be able to discern the direction.

Most of the time it is in the direction of the rising sun, that is, towards the east, and most plants are sun-loving; Because plants need to photosynthesize, the sunrise (east-facing) direction receives relatively large sunshine area and the time is relatively long, so photosynthesis is more than other directions; So grow more densely!

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Use feature judgment to judge.

Large, free-standing trees usually have dense foliage and smooth bark on the south side, and sparse branches and rough bark on the north side. The south side is usually grassy, and the north side is humid and mossy.

For buildings and mounds, snow melts slowly in the north, while in depressions such as earth pits, the opposite is true.

In China, if there is snow in the valley zone, the mountain that melts first is the sunny slope (south-facing slope), and the other side is the opposite.

The doors and windows of the larger temples in northern China, the main entrances of pagodas in the plain areas, and the independent houses in the countryside are mostly open to the south.

Satellite antennas in rural China are oriented south (the Earth's satellites are close to the equator, and the satellite antennas need to be oriented towards the satellites to find signals, and most of China is north of the equator). ）

China's great rivers generally flow from west to east, and their direction can generally be determined.

The northern edge of the forest glade is more grassy. The annual rings of the stump section are generally spaced at a large interval in the south and a small interval in the north.

In the grasslands of northern China, there are many northwest winds in desert areas, and many snow dragons and salons are often formed near the grass, with large heads and small tails, and the direction of the head is northwest.

The doors of the yurts on the steppe are mostly open to the south.

Put the pin in a puddle with grease and point to the north.

The sunny side (i.e., south-facing) of a single tree is dense, while the shady side (i.e., north-facing) is sparse.

In dense forests, the south side of the rock is drier, while the north side of the rock is wetter and mossy.

Peach and pine trees secrete gum in the south.

The rings of the stump are sparse in the south-facing half and denser in the north-facing half.

The parts that are difficult for the volume of snow to melt, such as ravines or rocks, are always in the north-facing direction.

The ant's burrow is mostly south of the tree, and the hole mouth faces south.

Some natural villages are generally concentrated on the south side of the mountain, and most of the gates open to the south. Generally, ancient temples, ancient pagodas, ancestral halls and other buildings are located in the north and facing south.

If you can see the stars in the night sky, as long as you find the Big Dipper, you can find the bright North Star along the extension line of the "spoon handle", and the direction of the North Star is due north.

The generally sparse foliage side is the north side. Because the leaves are light-loving plants, the leaves grow and develop through photosynthesis. In the northern hemisphere, most of the sunlight comes from the south, and the south-facing canopy can receive more sunlight, so that photosynthesis and transpiration can be fully carried out, which promotes the generation of organic matter and the absorption of inorganic salts and water, making the branches and leaves grow more densely.

So the foliage is sparse in the northerly direction and dense in the southerly direction.

The foliage side is the south side, and the foliage side is the north side. It is related to photosynthesis, with enough light to the south, strong photosynthesis and more synthetic nutrients.

Trees grow fast on the sunny side and slow on the shady side, and the stump rings reflect that the north side is denser and the south side is sparse. Similarly, trees usually have dense foliage and smooth bark on the south side, while they have fewer foliage on the north side and have rough bark and are prone to moss.

The leaves on the south side of the main trunk of the tree grow densely because they are exposed to sunlight for a long time, and the north side is exposed to sunlight for a short time, so they grow more sparsely. The bark of trees is generally smoother in the south and coarser in the north, and some trees have many cracks and bumps in their northern bark.

This phenomenon is in birch trees.

The upper performance is most obvious; Pines and cedars.

The gum that flows out of the trunk is more in the south than in the north, and it is easy to form larger lumps; In autumn, many fruit trees bear more south-facing fruits, especially apples, red dates, persimmons, citrus, etc., and the fruits also change color first-facing when they are ripe. The moss that grows on the stones likes to be shaded and damp, and the north side is prosperous; The snow melts mostly on the south-facing side first;

Generally shady slopes, i.e. the northern slopes, low ferns and vines.

It is more developed than the sunny side. The northern edge of the forest glade is more grassy.

Individual plants are more dense on the sunny side, while mosses may grow on the northward shady trunks. Large, free-standing trees usually have dense foliage on the south side and smooth bark; The northern side is sparsely foliage and coarse bark. The south side is usually grassy, and the north side is humid and mossy.

Many trees in the north of our country have clear growth rings visible on the cross-section, the growth rings on the south side are relatively sparse, and the north side has more dense growth rings. The annual ring pattern of the stump section is generally large in the south and small in the north.

If it's a cloudy day. If you get lost, you can find your way by the growth of moss on trees or stones. In the Northern Hemisphere, the foliage is the south. If you cut a tree, the one with a wide ring width and the one with moss is the north.

The above situation occurs only in the northern hemisphere, in the southern hemisphere.

Due to the long time of sunlight exposure to the north side, the foliage on the north side is dense and the south side is sparse; In the equatorial region.

Because it is direct sunlight all year round, trees on the equator do not have this feature.

The foliage side is the south side, and the sparse side is the north side. The reason is that because light affects photosynthesis, the south side produces more organic matter, which grows faster, so there are more leaves.

In the northern hemisphere of the earth, which is where our country is located, trees usually have plenty of sunlight and dense foliage on the south side, while the north side has less light and sparse foliage.

The sparsely foliage side is the north side. The foliage side is the south side.

The foliage side points south, and the foliage side points north.

It is common sense that the sun rises in the east in the morning and sets in the west in the evening; According to people's common sense, the sunny side grows vigorously, so the densely foliage side points to the south, and the sparse foliage side points to the north.

This method of judgment comes from the text "If You Get Lost in the Wild" in Lesson 17 of the second volume of the second grade of primary school Chinese in the People's Education Edition.

This article introduces the four natural "compasses":

1. China is located in the northern hemisphere, and the direction of the sun at noon is south, so the sun has become our compass.

2. At night, the North Star can indicate the north for us.

3. On rainy days, the thick branches and leaves of big trees can help us identify the direction, the side with dense leaves is the south, and the side with sparse leaves is the north.

4. In winter, the amount of snow on the slope of the ditch can also help us determine the direction of north and south.

The foliage is in the south, and the foliage is sparse in the north. In the northern hemisphere, most of the sunlight comes from the south, and the south-facing canopy gets more sunlight, and photosynthesis and transpiration are carried out more and more fully, which promotes the production of organic matter (which can be said to be the nutrients needed for the growth of branches and leaves) and the absorption of inorganic salts and water, making the branches and leaves grow more densely.

Effects of sunlight on plants: The energy of photons in sunlight is essential for photosynthesis in plants**. Light intensity and illumination affect the stomatal opening of plant leaves, which in turn affects the rate of transpiration and carbon assimilation of plants.

The sunshine time is different in different seasons and months, that is, the change of day and night affects the germination of plant flower buds with long sunshine time. Plants have the ability to photosynthesize, that is, they can use water, inorganic salts, and carbon dioxide for photosynthesis, release oxygen, and produce glucose, an energy-rich substance that plants can use.