The relationship between plants and humans, and what is the close relationship between plants and us

This is complicated, you can say that it is mutually beneficial symbiosis, or you can say predation and ** food, which depends on human behavior.

Plants are very closely related to us, and our food, clothing, housing and transportation are inseparable from it. 1.Edible; 2.

It can be used as medicine; 3.Can be viewed; 4.Woody plant stems can be used to build houses, make furniture; 5.

It can be used as a means of transportation, such as horse-drawn carriages, etc. 6.It can regulate the climate and purify the air!

Plants are the primary producers, absorbing the nutrients of the earth, the sun, and carbon dioxide from the environment.

Moisturized by rain and dew, photosynthesis is carried out.

Oxygen is produced to make carbohydrates.

It produces a variety of food, nutrients, medicines, and wood. Plants are the oxygen needed for human respiration**. Plants release oxygen during photosynthesis to purify the environment and provide essential conditions for human survival.

The people live on food:

Plants are the foundation of life – food crops.

Some people put rice, wheat, barley, corn, sorghum, soybeans, beans, sugar beets, sugar cane, peanuts, potatoes, potatoes, cassava.

Coconut and banana are listed as the world's 15 important edible plants, and some people regard rice, wheat, barley, sorghum and corn as the five pillars of cereal food crops.

The people live on food, and they cannot survive without them.

Plants are inseparable from human survival and living relationships.

1. Plants are the main food for humans. Humans need a large number of plants to serve as food, including food provided by crops; edible oils provided by cash crops; Fruit trees and fruits provided by economic plants and much more.

2. Plants provide important raw material resources for human life. Cotton and linen plants provide textile raw materials for human wear; Timber provides building materials for human settlements, building houses, building bridges, etc.

3. Plants provide a large amount of feed for livestock and animal products needed by human beings, and the main energy supply of animals lies in plants, and animals will die because of lack of energy without plants.

Fourth, plants form a forest scale and are the purifiers of the air. Forest plants grow 15-50% less sulphur dioxide in the air than in open land. In the summer of high temperature and humidity, the absorption rate of sulfur dioxide by forest plants will increase with the vigorous physiological activity of forest trees.

The relative humidity is above 85%, and the rate of absorption of sulfur dioxide by forest plants is 5-10 times faster than that of 15% relative humidity. Humans need to breathe oxygen, while plants can absorb carbon dioxide and exhale it. The oxygen released by plant photosynthesis is supplied to humans.

5. Forest plants have a regulating effect on climate. The dense canopy of forest plants absorbs, scatters, and reflects some of the solar radiation energy in summer, reducing ground warming. Because the roots of the forest trees go deep into the ground, they continuously absorb the water in the deep soil for the transpiration of the trees, so that the forest normally forms fog and increases precipitation.

Without plants, soil erosion leads to greater water scarcity and less arable land. Plants also regulate the global environment.

6. Plants themselves have the function of conserving water, and the decay layer of dead branches and leaves on the surface of plants is increasing, forming a thick humus layer, which has the functions of strong water absorption, delaying runoff and weakening flood peaks. The canopy of the tree has a trapping effect on rainwater, which can reduce the impact of rainwater on the ground and maintain water and soil. The canopy can hold back 10-20% of precipitation, most of which evaporates into the atmosphere, and the rest falls to the ground or seeps into the soil along the trunk of trees to become groundwater.

7. Plants in complex ecosystems, as producers, support the existence of various biological chains. Plants are the main source of energy, an important part of the energy cycle, and the main body to maintain the balance of the ecosystem.

The emergence and development of human beings have always been accompanied by plants; People's perception of plants has undergone a process of constant change. Human beings rely on the minimum living conditions provided by plants, such as perching, feeding, laboring, etc., and plants will quickly be fatal to human survival once they are lacking, and no matter the survival or living environment, they all restrict the safety of human beings.

Humans and plants are interdependent and survive.

The development of botanical archaeology in China has been accompanied by a 10-year project to explore the origin of Chinese civilization. Zhao Zhijun, his colleagues and students collected and researched the plant remains left by sites in six different regions between 5,000 and 3,000 years ago, and achieved a series of results.

The representative point of view is put forward in his "Characteristics of Agricultural Economic Development in the Formative Period of Chinese Civilization": "The 'abundant harvest of grains' recorded in the documents of the Han Dynasty is not simply a praise to describe the development of ancient society, but a necessary condition for the formation of Chinese civilization. ”

According to Dr. Liu Xinyi of the Department of Anthropology at Washington University in St. Louis, the theoretical framework for the origin of agriculture in China has been formed through the efforts of "vegetative people" in recent years.

The formation of Chinese civilization coincided with the most severe climate change, and areas that relied on a single crop may not be able to withstand the shock and die, but the multi-variety cultivation method in the Central Plains has improved the ability to cope with natural disasters. Liu Xinyi said.

Plants are producers in the ecosystem, and plants can survive without plants, and plants can survive without human beings.