1, gully shapes vary in size, some are narrow and steep, and some are wide and flat. Gully is a unique landform type in mountainous areas, which is not only the product of nature, but also the result of human activities.
2. The formation of gullies is mainly influenced by natural factors such as topography, climate and geology. Topographically, gullies are usually located on shady or semi-shady slopes of mountainous areas, because there is a large amount of precipitation here, which is easy to form erosion.
3. Climatically, the formation of gullies is related to rainfall and evaporation, especially in areas with heavy rainfall. Geologically, the formation of gullies is related to the anti-erosion ability of rocks, and rocks with weak anti-erosion ability are more likely to be eroded to form gullies.
Gully has an important influence on human life. On the one hand, gullies provide abundant water resources for mountainous areas and are important sources of farmland irrigation and drinking water for people and livestock. On the other hand, ravines are also the birthplace of natural disasters, such as flash floods and landslides. Therefore, the rational utilization and protection of valley resources is of great significance to the sustainable development of mountainous areas.
The ravine sentence is as follows:
1, the stream in the ravine is crystal clear, and the fish are swimming freely in the water.
With the coming of spring, the wild flowers in the ravine are blooming, and the colorful scenes are intoxicating.
After the rainstorm, the water in the ravine became surging and rumbling.
The fruit trees in the ravine are full of fruits, and the villagers are busy picking them, which is a scene of bumper harvest.
In summer, the air in the ravine is fresh and pleasant, which is a good place to escape the heat and enjoy the cool.
6. After years of baptism, the stones in the ravine have become smooth as a mirror.
7. In autumn, the leaves in the ravine turned golden yellow, as if covered with a golden coat.
8. The path in the ravine twists and turns, as if leading to a mysterious world.
9. In winter, snowflakes fall in the ravine, covering the earth with a layer of silver.
10, the birds in the ravine sang one after another, playing a wonderful movement for nature.
1 1. The villagers in the ravine are hardworking and simple, and have created a beautiful home with their hands.
12. The terraces in the ravine are layered like a beautiful picture.
13. The bamboo forests in the ravine are lush, providing rich bamboo resources for the villagers.
14. The waterfalls in the ravine flew down, splashing and the scenery was spectacular.
15, the ancient trees in the ravine are towering, witnessing the changes of history and the vicissitudes of time.