Business Planet Edition 7th Grade Geography Volume 2
Business Planet Edition Geography for Grade 8 Volume 1
Business Planet Edition 7th Grade Geography Volume 1
People's Education Edition Geography for Seventh Grade Volume 2
Shanghai Education Edition Seventh Grade Geography Volume 1
Business Planet Edition Geography for Eighth Grade Volume 2
Hunan Education Edition High School Geography Compulsory Course I
People's Education Edition Geography for Grade 7 Volume 1
People's Education Edition Geography for Eighth Grade Volume 2
Lu Ke version of high school geography compulsory course I
Shanghai Education Edition Geography for Sixth Graders Volume 1
Hunan Education Edition High School Geography Compulsory Course II
Shanghai Education Edition Seventh Grade Geography Volume 2
People's Education Edition Geography for Grade 8 Volume 1
Compulsory Course 1 of High School Geography in China Graphics Edition
People's Education Press High School Geography Compulsory Course 1
Category | Format | Size |
---|---|---|
People's Education Edition Geography for Grade 8 Volume 1 | pptx | 6 MB |
Description
"Water Resources" China's natural resources PPT courseware 3
water resources
Broad term: the general term for all bodies of water on earth.
Narrow sense: fresh water resources on the earth.
River water and freshwater lake water are my country's main freshwater resources.
The size of a country's river runoff can generally indicate the amount of water resources in the country.
Why is there a water shortage in the Northwest?
The climate is arid and precipitation is scarce.
Why is there water shortage in North China?
Natural causes: It is mainly located in semi-humid areas with low precipitation and high evaporation. The spring drought is particularly severe, and the rivers flowing through it have small flows.
Social and economic reasons: North China has concentrated industry and agriculture, a large urban population, large water demand, and serious water resource pollution and waste.
The impact of uneven spatial and temporal distribution of water resources in my country
There are obvious differences in agricultural land use patterns between the north and the south.
Seasonal and interannual changes in precipitation and runoff are the main reasons for frequent floods and droughts and unstable agricultural production.
In the arid areas of northwest China, insufficient water resources are a bottleneck restricting social and economic development.
think:
Please observe the route diagram of the South-to-North Water Diversion Project and answer the following questions:
How many routes does the South-to-North Water Diversion Project have?
Which line is the closest and where does it solve the water shortage problem?
Which reservoir is the starting point of the middle line plan?
Which line runs along the Beijing-Hangzhou Grand Canal?
Think about it:
What causes water pollution?
Urban sewage, industrial wastewater, chemical fertilizers, and pesticides are the main causes of water pollution in our country, making the already scarce water resources even more tense.
In a sense: saving water is more important than transferring water.
Keywords: China's natural resources teaching courseware, water 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, water resources PPT courseware download, .PPT Format;
For more information about the "Water Resources China's Natural Resources" PPT courseware, please click the Water Resources ppt China's Natural Resources ppt tag.
"Utilization, Development and Protection of Water Resources" PPT courseware:
The first part of the "Utilization, Development and Protection of Water Resources" PPT courseware content: Reading Figure 1-56 to Figure 1-60 on page 39 of the textbook on Water Resources Utilization and Development: What is the close connection between water and human life and production? Drinking and irrigation , washing, industrial water and other global water resources...
"Utilization, Development and Protection of Water Resources" PPT:
"Utilization, Development and Protection of Water Resources" PPT Part One Content: Thoughts and Discussion Discussion: From the perspective of the water cycle, to summarize, what are the common characteristics of several freshwater bodies that humans currently use more? Answer: Humans currently use more freshwater bodies Several types of fresh water include lake water...
"Saving and Protecting Water Resources" PPT courseware:
"Saving and Protecting Water Resources" PPT Courseware Part One: Learning Objectives: (1) Knowledge Objectives: Know the spatiotemporal distribution patterns and causes of water resources. (Key points) (2) Capability objectives Use maps to analyze how to rationally allocate water resources in my country. (Difficulty) ..
File Info
Update Time: 2024-10-01
This template belongs to Geography courseware People's Education Edition Geography for Grade 8 Volume 1 industry PPT template
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