Current location - Education and Training Encyclopedia - Graduation thesis - Scientific papers on food, clothing, housing and transportation
Scientific papers on food, clothing, housing and transportation
Rural food, clothing, housing and transportation and ecological environment

Abstract: The rural population in our region accounts for about 80%. Food, clothing, housing and transportation and ecological environment in rural areas

Closely related, analyze the causes, process and harm of ecological environment destruction; Propose a treatment plan

Methods: Discuss with readers how to protect and improve the ecological environment.

Arrange a job.

Key words: erosion, soil erosion, land desertification, ecological environment, sand control

I. Ecological environment

According to the annual China Environmental Bulletin, there are still ten ecological problems facing China.

Seriously. One is serious sand disaster, the other is serious soil erosion, and the third is serious drought.

Fourth, serious floods, fifth, serious damage to wild plants, and sixth, the bearing capacity of forest resources.

The pressure is increasing.

The problems of soil erosion and land desertification have not been fundamentally changed. Use data

The results show that the area of land desertification and soil erosion in the western region is 4.48 million.

KmZ, accounting for 65% of the total area. Although the forest area in our area has increased in recent years.

In addition, ecological protection and construction have been solved and strengthened, and certain results have been achieved. but

Our region is still a region with serious soil erosion in China. The ecological environment in our region has been questioned.

The problem is more prominent, the ecological damage is still serious, and the ecological situation is grim, which is manifested in ecology.

The structure tends to be single, the ecological service function declines, the ecosystem is more unstable, and the ecology

The environment is more fragile, biodiversity is drastically reduced, and natural disasters are increasing.

1. Types and factors of soil erosion and land desertification

Type: There are mainly hydraulic erosion and wind erosion, followed by local erosion.

There is freeze-thaw erosion in this area.

Factors: first, natural factors, and second, human factors. Affect soil erosion and soil erosion.

The natural factors of desertification mainly include topography, climate, soil composition and

Composition, plant density, etc. Human factors mainly refer to the increase of topsoil.

Quickly destroy and move people's unreasonable production and construction activities and other human activities.

Move it. The production and construction activities that cause soil erosion and soil desertification are mainly deforestation.

Wasteland, steep slope Sakamoto, land reclamation, deforestation, overgrazing, mining, road construction and other production and construction.

2. The relationship between food, clothing, housing and transportation and ecological environment

There are about 80% peasant families in our district. Farmers' basic necessities of life and local survival

The environment is closely related. Expert analysis: 5% of soil erosion and land desertification are dry climate.

95% of the reasons are human factors. Food is the most important thing for the people, and rural people do not have enough to eat. This is natural.

Reclaiming barren hills and desert sand, destroying young trees, building houses, building roads and repairing bridges in rural areas are all inseparable from logging.

Cutting down trees, the daily fuel in rural areas can not be separated from cutting down trees. Most of the fuel in rural areas

Chopping wood is the direct cause of sparse vegetation. Vegetation decreased sharply, and the surface was bare.

The evaporation increases, the rainfall decreases, the groundwater level drops, and the surface soil erosion is serious.

The intensification of land desertification has accelerated the speed and degree of regional ecological environment degradation.

Man-made unreasonable economic activities are an important factor to destroy the regional ecological environment.

Factors, especially the activities of rural people, are the most direct. Factories, mines and roads

Infrastructure construction directly affects the ecological environment. In the countryside, he

Children are engaged in ecological production and economic activities every day. agriculture

The villagers' food, clothing, housing and transportation are inextricably linked with the ecological environment.

Department, to prevent soil erosion, land desertification, do a good job in ecological environment construction.

Work should start with food and clothing for rural people and change their lives.

Mode-Do not cut down trees as fuel (tree protection); Change the way of thinking-not planting cultivated land to produce more grain, but increasing the output of economic planting (soil and water conservation). Only from the source of the countryside

Only by saving trees and preventing the deterioration of rural ecological environment can we improve our health.

State.

Second, the harm of soil erosion and land desertification

Vegetation is sharply reduced, regional rainfall distribution is uneven, and water conservation is poor.

Water, soil and fertilizer flow in sloping farmland caused by drought, flood and soil erosion

Loss, land is getting thinner and thinner, and grassland is "three-oriented": degradation, desertification and alkalization.

Desertification and rocky desertification occur in this area; A large number of soil erosion, land desertification

Direct siltation of rivers, lakes and reservoirs has seriously weakened water conservancy facilities.

The application of regulation and storage function leads to ecological deterioration and serious natural disasters.

It affects the life safety and living environment of local people and endangers traffic and communication.

Information, industrial and mining enterprises and other infrastructure and urban modernization. Water and soil

Land loss and desertification have become the number one environmental problem in China.

Country, improving the environment has become a top priority.

Three, the key premise of rural soil and water conservation, sand prevention and control

Solve the problem of farmers' fuel, mainly firewood, and switch to other fuels

Energy-based, such as biogas, solar energy, electricity and so on. So that vegetation can be regenerated.

The speed is greater than the cutting speed, so is Baoshan, protecting trees and water and solving rural problems.

Insufficient food reduces or even eliminates the sloping land that causes soil erosion.