"Land Resources" China's natural resources PPT courseware 2

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"Land Resources" China's natural resources PPT courseware 2

What is land?

Land is the root of mountains and rivers

Land is the foundation of all things

Land is the source of food and clothing for mankind

Land is the source of all wealth

All Wuhua Tianbao are native-born

Land is everything in the past and everything in the future

Please explain the meaning of these words

1. Types of land resources

How do people use land?

Cultivated land This is an endless plain with flat terrain and fertile land, which is conducive to the development of farming operations.

Woodland The terrain here is rugged and not suitable for farming, but the forests are dense and suitable for forestry development.

Grassland This is a gently undulating plateau with lush grassland. People graze cattle and sheep here and can develop animal husbandry.

Construction land This map is lined with high-rise buildings and a network of roads, which is suitable for the development of residences, shops, and industrial and mining enterprises.

The characteristics of my country’s land resources are:

There are complete types of land in our country, but the proportions of various types of land are unreasonable. The proportion of cultivated land and forest land is small, the proportion of land that is difficult to use is large, and reserve land resources are insufficient.

Discussion: What does the picture below reflect the characteristics of my country’s land resources?

Advantages:

(1) The diverse types of land resources provide favorable conditions for the development of various agricultural productions in my country.

(2) The mountainous area is vast and has advantages in the development of forestry, animal husbandry, tourism, mining, etc.

(3) The total amount of land resources is abundant.

Adverse conditions:

(1) Land resources are unevenly distributed.

(2) There are many mountains and little cultivated land.

(3) Per capita land possession is small.

(4) All types of land resources are seriously polluted and damaged.

2. Uneven distribution of land resources

Read the picture below and answer which terrain areas are my country’s cultivated land mainly distributed in?

Mainly distributed in semi-humid and humid plains, basins and low and gentle hilly areas.

grasslands and meadows

Mainly distributed in arid and semi-arid plateaus and mountains in the north and the Qinghai-Tibet Plateau.

China's woodlands

Mainly distributed in the deep mountainous areas and border areas with inconvenient transportation in the northeast and southwest, as well as the mountainous areas in the southeast.

3. Make rational use of every inch of land

Our country is the first country in the world to start agricultural cultivation. Soil erosion has turned some areas into almost barren land. It is estimated that the area of ​​water and soil erosion in my country reaches 1.5 million square kilometers, and about 5 billion tons of soil are lost every year. The Yellow River system alone loses 1.6 billion tons of soil every year. If the lost soil were piled up into a dam of 1 meter high and 1 meter wide, it would be able to circle the earth more than 20 times.

At present, my country's desert, Gobi and desertified land area has reached 1.496 million square kilometers, accounting for 15.5% of my country's land area. In other words, more than 1/7 of my country's 9.6 million square kilometers of land has been desertified. In addition, there are still 158,000 square kilometers of land undergoing desertification, including 3.93 million hectares of farmland and 4.93 million hectares of pasture. According to expert estimates, my country's deserts are currently continuing to expand at a rate of 1,560 square kilometers per year.

Class summary:

Uneven distribution of land resources

Cultivated land is distributed in humid and semi-humid plains and low and gentle hilly areas;

Woodlands are found on moist mountainous terrain;

Grasslands and unused lands are found throughout the interior of the west.

Problems in land resource utilization:

Soil erosion, unauthorized occupation of cultivated land, and land desertification

solution:

We cherish and rationally utilize every inch of land and effectively protect cultivated land. (Basic national policy)

Keywords: China's natural resources teaching courseware, land resources teaching courseware, People's Education Edition eighth grade geography PPT courseware download, eighth grade geography slide courseware download, China's natural resources PPT courseware download, land resources PPT courseware download, .PPT Format;

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Update Time: 2024-11-01

This template belongs to Geography courseware People's Education Edition Geography for Grade 8 Volume 1 industry PPT template

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