"Many Rivers" PPT courseware

Description

"Many Rivers" PPT courseware

Part One Contents: Major Rivers

wailiuhe

river that flows into the pacific ocean

Heilongjiang, Liaohe River, Haihe River, Huaihe River, Yangtze River, Pearl River

river that flows into the indian ocean

Nu River, Brahmaputra River

rivers flowing into the arctic ocean

irtysh river

Characteristics of the flow direction of rivers in my country: Most of them are outflow rivers. Affected by the topography of high in the west and low in the east, they flow into the Pacific Ocean from west to east. Only a few rivers flow south into the Indian Ocean or north into the Arctic Ocean.

inner river

The Tarim River is the largest inland river in my country and is mainly supplied by melted ice and snow from mountains such as the Tianshan Mountains and Kunlun Mountains.

my country's inland rivers are mainly distributed in western my country.

Reason: The climate in the west is dry and rivers are rare.

Characteristics of inland rivers: Most of the river water comes from the melted water of ice and snow in the mountains. The water volume is large in summer, but then decreases or even stops flowing.

Many rivers PPT, part 2: different characteristics of rivers in the south and north

Hydrological characteristics of rivers: including the size of the river water, the height of the water level, the length of the freezing period, the sand content, etc.

The hydrological characteristics of rivers in different regions, different seasons, and even different sections of the same river will be very different. Some rivers have abundant water, while some rivers are often almost dry. Some rivers have long flood seasons, and some rivers have short flood seasons. The same river sometimes has a large amount of water, and sometimes it is a trickle. Some rivers have a large sediment content. Some rivers are crystal clear, some are frozen in winter, and some never freeze.

North of Qinling-Huaihe line

There is icing. Except for the Heilongjiang River and its tributaries, rivers such as the Yellow River, Haihe River, and Liaohe River have small water volumes, short flood seasons, and high sediment content.

South of Qinling-Huaihe line

The river has abundant water, long flood season and low sediment content.

Many rivers PPT, part three: characteristics of rivers and lakes

(1) Hydrological characteristics of outflow rivers

The hydrological characteristics of rivers generally include river flow, flood season, sediment content, and whether there is a freezing period, etc.

1. In which season do these four rivers have the largest water volume? In what season is the minimum amount of water?

Affected by the monsoon climate, the outflow rivers in my country have the largest water volume in summer, generally forming a flood season; and the smallest water volume in winter, forming a dry season.

(2) Hydrological characteristics of inland rivers

Tarim River: The water source comes from melted ice and snow. There is a flood season in summer. The flow is small and easy to stop.

1. Where does the water source of the Tarim River mainly come from?

2. When does the flood season of the Tarim River occur?

Keywords: Shanghai Education Edition Geography PPT courseware for seventh graders can be downloaded for free, numerous river PPT downloads, .PPT format;

For more information about the "Many Rivers" PPT courseware, please click on the "Many Rivers" ppt tab.

"Many Rivers" PPT:

"Many Rivers" PPT Part One: Overview of Rivers What are the main rivers flowing through Shanghai? Do you know what major rivers there are in our country? The influence of terrain on the flow direction of rivers. Inland rivers: rivers that do not flow into the ocean. Outflow rivers: rivers that flow into the ocean..

File Info

Update Time: 2024-11-20

This template belongs to Geography courseware Shanghai Education Edition Seventh Grade Geography Volume 1 industry PPT template

Preview