I want an article about protecting the environment

In this advanced information-based society, people's daily lives have gradually improved due to social development and technological progress. However, after people live a better life, they will face another problem - environmental protection.

Nowadays, humans are gradually realizing the importance of environmental protection. Because the earth's green vegetation coverage is declining rapidly every year, wild animal species are constantly taking big steps toward extinction. Rare animals and plants such as silver fir, metasequoia, crested ibis, European great ptarmigan, and American egret are all on the verge of extinction. However, in Guangdong, civets and other animals still delight diners. Human beings have naturally suffered retribution. SARS and bird flu storms have attacked humans in both directions, resulting in the death of many people. Isn't this caused by humans alone?

There is a Chinese proverb: "Big fish eat small fish, small fish eat shrimps, and shrimps eat mud balls." The organisms in the ecosystem form a chain through this relationship between eating and being eaten, which is called the food chain. . According to the mutual relationship between living things, there are three main types of food chains:

The first type is the predatory food chain, which is based on plants and goes from plants to small animals to large animals, which can prey on The former: grass → locust → frog → snake → eagle, belongs to this type. The second is the parasitic food chain, which is based on large animals, with small animals parasitic on large animals: birds → fleas → protozoa → bacteria → filtering viruses, which belongs to this type. The third is the saprophytic food chain, also called the decomposition chain, which starts from the reproduction of bacteria, fungi and some soil animals on dead animal and plant residues: plant residues → earthworms → nematodes → arthropods, which belongs to this type. Human beings have destroyed the ecological balance, and aren't they leading themselves to the path of death?

There are two factors that affect ecological balance, natural and man-made. Volcanic eruptions, lightning strikes, fires, earthquakes, mudslides, etc. are natural factors; excessive reclamation, grazing, indiscriminate hunting, etc. are human factors. The destruction of ecological balance is mainly caused by humans. For example, the Aswan Dam in Egypt has blocked fertile silt, making the land in the lower reaches of the Nile barren; the nutrients in the river have been reduced, affecting the fishery production of the Nile Delta and the Mediterranean, and the catch of sardines in Egypt has been reduced. Another example is that in the mountainous areas of northern India, all forest resources were cut down, causing a devastating flood in 1978. As a result, more than 2,000 people drowned and 40,000 livestock were washed away.

Why more than 2,000 people drowned and why 40,000 livestock were washed away? In the final analysis, it is still a matter of forest protection. The forest is the protector of nature. One of its important functions is to conserve water sources and preserve soil and water. During the rainy season, forests can intercept raindrops through the canopy and fallen leaves on the ground, reducing the impact of raindrops on the ground, increasing the speed of rainwater penetrating into the land and the soil's ability to conserve moisture, and reducing surface runoff caused by rainfall; the trees are intertwined. The root system can also protect the soil and reduce the erosion of the soil by rain. Without the protection of forests, the soil will lose its ability to conserve water. When heavy rains come, turbid currents will roll in, and the thin layer of soil that people have spent thousands of years cultivating will be washed away by the rain. This silt flows into rivers and silts up reservoirs, causing them to lose their water storage capacity. Forests conserve water sources, and 70% of rainfall must seep into the ground. If there were no forests, there would be flooding when it rains, and droughts when there is no rain.

Forests are also nature’s cleaners. In terms of protecting the environment, the ecological benefits of forests are much higher than the direct economic benefits. Finland produces timber worth DM 1.7 billion a year, while the ecological benefits of forests provide a value of DM 5.3 billion. The ratio of the value directly provided by American forests to the value of ecological benefits is 1:9.

Forests are not only nature’s cleaners, but also “factories” that produce oxygen. According to measurements, one acre of forest generally produces 48.7 kilograms of oxygen per day, which can meet the needs of 65 people for a day. Forests can absorb harmful substances. One hectare of cedar forest can absorb 60 kilograms of sulfur dioxide per month; privet, clove, sycamore, weeping willow, juniper, acacia, etc. have a good effect on reducing hydrogen fluoride. Forests conserve soil and water. If a 20 cm thick topsoil layer is washed away by rain, it will take 577,000 years for woodland, 82,000 years for grassland, 46 years for cultivated land, and 18 years for bare land. This shows that the lack of forest vegetation will increase soil erosion.

I think the best way to deal with these problems is to build nature reserves. A nature reserve refers to a country that, in order to protect the natural environment and natural resources, delimits and protects certain representative natural environments and ecosystems, habitats of rare animals and plants, important natural historical sites, and important water source areas. area. It includes ecological reserves, biosphere reserves, specific natural object reserves; national parks, natural parks, forest parks, marine parks; no logging areas, no fishing areas, no hunting areas; glacier relics, hot springs, fossil groups, etc.

It is useless to talk, but we must work hard. For the motherland, for the world, and for the destiny of all mankind, let us use the sweat on our foreheads to exchange for a better future for mankind!

Environmental Protection Proposal

Uncle Mayor:

I am a primary school student at Huaqiang Primary School.

I have grown up in Nanning since I was a child. I have seen how Nanning has changed.

From an unknown city to a green city in China, it has launched a folk song festival, the China Southern Expo...

Now in Nanning, you can see "Environmental protection, everyone is responsible." etc. words. On the side of the road, the various trash cans are extremely beautiful. Recently, everyone advocates separating recyclable and non-recyclable trash cans.

However, I think classification alone is not enough. We need to write some types of recyclable garbage and non-recyclable garbage on the trash can. Not everyone wants to accept knowledge like us. Many people know what is recyclable and non-recyclable garbage. If those migrant workers don’t know, they will just throw it away, which is not good. Not only does it not play a role in environmental protection and garbage classification, it will also cause work troubles for the workers at the garbage dump.

In addition, I also discovered a quite serious problem.

One day, I took a bus with my mother and grandma to visit the tombs of the Martyrs Cemetery. At first we went out happily, but when we went to the bus station to wait for the bus, we found a trash can next to it. The garbage inside already stinked, and the passers-by walked around with their noses crossed. , when we walked by, we smelled a strong rancid smell.

Later, wherever I went, wherever there was a trash can, I would carefully observe whether there was any smell. After a period of observation, I found that the trash cans nowadays are fixed, unlike the ones in the past where you could take out the trash, but why did they stink? Later I found out that it was because the trash cans were fixed. When sanitation workers clean the trash cans in the morning, they simply pick out the garbage on the surface and do not clean it to the bottom. Once, I asked them why they didn’t clean up the garbage? They said it wasn't because they didn't want to, but because the trash can was fixed, so they couldn't reach the bottom, and the trash couldn't be taken out, so they had to leave the trash inside.

It can be seen that the smell of trash cans is not because the sanitation workers are not doing their duty, but because there is a problem with the design of the trash cans. I hereby hope that for the sake of the beauty of Nanning and the freshness of the air, please ask the mayor to ask people to design some practical and beautiful trash cans, so that the stinky smell will no longer pollute our fresh air.