"Topography and Relief" China's Natural Environment PPT Courseware 8

Description

"Topography and Relief" China's Natural Environment PPT Courseware 8

learning target

1.Topography

2. Basic characteristics of terrain

3. The dividing line between steps

4. Characteristics of the three-level ladder

5. The impact of terrain characteristics on my country’s natural environment and economic activities

6. Practice

Basic characteristics of terrain: high in the west and low in the east

The terrain is distributed in a ladder shape

1. Topography: the general trend of ups and downs on the earth's surface.

2. Basic characteristics of China’s terrain

It is higher in the west and lower in the east, distributed in a ladder shape.

3. The dividing line between stairs

Characteristics of the fourth and third levels of the ladder

5. The impact of terrain characteristics on my country’s natural environment and economic activities

practise

1. Basic characteristics of China’s terrain:

It is higher in the west and lower in the east, distributed in a ladder shape.

2. On the topographic map of China, find the boundaries between the three steps:

The boundary between the first and second steps: starting from the __________ Mountains in the west, passing through the __________ Mountains to the southeast to the eastern edge of the Hengduan Mountains.

The boundaries between the second and third steps: from northeast to southwest are ____Ling, ____shan, Wushan, and ____shan.

Think and discuss

The terrain is high in the west and low in the east. It is distributed in a ladder shape. What impact does it have on my country's natural environment and people's production and life?

Refer to activities 2, 3, and 4 on page 23 to answer.

The impact of my country's terrain characteristics on climate

High in the west and low in the east are conducive to the advancement of warm and humid ocean air flow inland

High in the east and low in the west will prevent warm and humid ocean air from advancing inland.

The impact of terrain characteristics on my country’s natural environment and economic activities

Climate: High in the west and low in the east are conducive to the advancement of warm and humid ocean air flow inland, causing abundant precipitation in most areas in the east.

Rivers: my country's major rivers run from west to east and flow into the sea.

Water energy: The gap is large and water energy resources are abundant. Hydropower stations can be built at the junction of the stairs.

Transportation: The large river flowing eastward connects the east-west transportation and facilitates the connection between the coast and the inland. However, the tall mountains at the junction of the steps have become a huge obstacle to east-west transportation.

Qaidam Basin

The Qaidam Basin is located in Qinghai Province in the northeastern part of the Qinghai-Tibet Plateau, with an average altitude of about 3,000 meters. It is the highest basin and a typical inland plateau basin. Most of the interior of the basin is Gobi and desert, with swamps and salt lakes in the east. The basin is rich in petroleum, non-ferrous metal ore and salt resources, so the Qaidam Basin is known as the "treasure basin". .

Tarim Basin and Junggar Basin

The Tarim Basin and Junggar Basin are located in the inland northwest of my country, within Xinjiang, and are separated from the north and south sides of the Tianshan Mountains. These two basins are surrounded by high mountains, and the interior is relatively flat, with vast stretches of desert and Gobi. The Tarim Basin is the largest basin in my country, and the Taklimakan Desert inside the basin is the largest desert in my country.

Sichuan Basin

The Sichuan Basin is located in Sichuan Province and Chongqing City of my country. The basin is surrounded by mountains and plateaus. The interior of the basin is undulating with low hills and hills, with an altitude of about 500 meters. Only the Chengdu Plain has a relatively flat terrain, like a fan spread diagonally in the west of the basin. It is the alluvial fan plain of the Minjiang River. It has fertile soil, convenient irrigation, and rich products. It is known as the "Land of Abundance". The Sichuan Basin is known as the "Red Basin" and "Purple Basin" due to the widespread distribution of purple sand shale.

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For more information about the "China's Natural Environment Topography and Relief" PPT courseware, please click on the China's Natural Environment PPT Topography and Relief PPT tab.

"Topography and Relief" China's Natural Environment PPT Courseware 9:

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"Topography and Relief" China's Natural Environment PPT Courseware 7:

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"Topography and Relief" China's Natural Environment PPT Courseware 6:

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Update Time: 2024-07-29

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

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