"The Relationship between Vegetation and the Natural Environment" Natural Geographic Elements and Phenomenon PPT

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"The Relationship between Vegetation and the Natural Environment" Natural Geographic Elements and Phenomenon PPT

Part One: Strengthening the Implementation of Basic Knowledge

[Self-reading textbook·Fill in key points]

1. Vegetation

1. Plant population: A cluster of individual _____ plants growing in a certain environmental space.

2. Plant community: All plant populations living in a certain area.

3. Vegetation: The _____ and its _____ that cover an area of ​​the earth's surface.

4. Classification of vegetation: natural vegetation and artificial vegetation.

2. Main vegetation types in the world

1. tropical vegetation

2. Subtropical vegetation

3.Temperate vegetation

4. Boreal vegetation

(1) Typical vegetation types: _____, composed of polar (or alpine) shrubs, _____, lichens and perennial herbs.

(2) Classification: polar tundra and _____ tundra.

3. Interrelationship between vegetation and natural environment

1. The impact of the natural environment on vegetation: Different physical geographical elements have an impact on vegetation by affecting the _____ conditions of the region.

(1) The heat provided by solar radiation to the earth _____ regularly from the equator to the poles, forming different temperature zones, thus forming the basic pattern of global terrestrial vegetation such as _____ vegetation, temperate vegetation, and cold zone vegetation.

(2) Differences in _____ conditions are also the main reason for differences in vegetation types in different regions.

(3) _____ differences caused by other physical geographical factors will also affect vegetation distribution.

2. The impact of vegetation on the natural environment

(1) Impact on the atmosphere: Through photosynthesis, the carbon dioxide content in the atmosphere is reduced and the _____ content is increased, thereby affecting the composition of the atmosphere; the transpiration of vegetation can increase the atmospheric _____ and regulate the local climate.

(2) Affects the soil: Plant roots have the function of _____. Under the action of soil microorganisms, plant debris becomes soil _____, thus changing the physical and chemical properties of the soil.

(3) Vegetation can change the regional geographical environment in a certain direction through long-term effects.

PPT on the relationship between vegetation and the natural environment, part 2: attaching importance to problem-based teaching

Question 1: What are the types and characteristics of forests? Basic test points

[Thinking and exploring]

A forest is a plant community composed mainly of trees. There are various types of forests. A middle school geography field expedition team took two sets of photos, which are the overall views of different forests and photos of their leaves.

[Exploration 1] In what areas are the two types of forests in the picture mainly distributed?

Tip: Evergreen broad-leaved forests are mainly distributed in subtropical monsoon climate zones and subtropical humid climate zones; deciduous broad-leaf forests are mainly distributed in temperate monsoon climate zones and temperate maritime climate zones.

[Exploration 2] If you walk into a broad-leaved forest in summer, how to determine whether it is an evergreen broad-leaved forest or a deciduous broad-leaved forest?

Tip: It is mainly judged by the different characteristics of leaves. The leaves of evergreen broad-leaved forests are mostly leathery, shiny, hairless, and slightly hard. The leaves of deciduous broad-leaved forests are mostly papery, wide and thin.

[Training to pass the test]

1. Which of the following statements about forests is correct ()

A. Forests are mainly distributed in humid and semi-humid areas in the tropics and boreal zones

B． The main types of forests in the tropics are tropical rainforests

C. Temperate forest types are single

D. Coniferous forests are mainly found in boreal areas

Mangrove is a unique community of evergreen shrubs and small trees, generally distributed in the intertidal zone between the high tide line and the low tide line. Read the distribution map of mangroves in Africa and answer questions 2 to 3.

2. The main influencing factors for the loss of mangroves on the west coast of the African continent near the Tropic of Capricorn are ()

A. Latitude positionB. illumination

C. How far away from the sea D. ocean current

3. Which of the following does not belong to the ecological benefits of mangroves ()

A. Fixed bank berm B. regulate floods

C. Windproof and wave-repellent D. Purify sea water

Question 2: What is the relationship between vegetation and the natural environment? Important and difficult test points

[Thinking and exploring]

After years of hard work, my country has initially built an ecological barrier across my country's "Three North" regions by implementing a series of ecological and environmental protection measures such as the construction of the "Three North" shelterbelts, natural forest protection, and grassland wetland restoration. Desertification of land has been effectively controlled, and the ecology of grasslands and forest networks has gradually improved.

[Problem Design]

1. Use "comprehensive thinking" to analyze what types of vegetation are present in graphic materials?

Tips: Natural vegetation such as natural forests, grasslands, and deserts; artificial vegetation such as shelterbelts.

2. Use "comprehensive thinking" to analyze the relationship between the illustrated vegetation and the environment?

Tip: The environment provides growth conditions for vegetation, and vegetation will also modify some of the environmental conditions for its growth.

3. From the perspective of "geographical practice", if you travel from the east to the west of the Inner Mongolia Plateau, how do you find the transition of vegetation? what is the reason?

Tip: From east to west: temperate grassland - temperate desert grassland - temperate desert. The reason is that moisture conditions are getting worse from east to west.

PPT on the relationship between vegetation and the natural environment, part three: carrying out structural evaluation of thinking

The Namaqualand Desert borders the Cape of Good Hope to the south and the Atlantic Ocean to the west. It is a desert that is long and narrow from north to south, desolate and arid, with diverse topography. It has a history of 50 million years. The average annual precipitation is about 150 mm, with some areas less than 50 mm. There are about 150 days of fog every year. The International Ecological Conservation Organization believes that the Namaqualand Desert is the only biodiverse arid zone on earth. There are more than 3,000 species of plants in the area, including more than 1,000 types of succulents, accounting for 10% of the world's succulent plant species. Succulent plants have small leaves and thick flesh. They usually live in places with high temperatures, low precipitation, and obvious alternation of dry and wet seasons. A small amount of fog and dew can meet their survival needs. In order to survive, most succulents in Namaqualand will choose to spend time "dormant" at certain times. Based on the materials, discuss what are the reasons for the large number of succulent plant species in the Namaqualand Desert?

[Your evaluation and thinking are perfect]

Student A’s answer is a multi-point structure, but the review materials are one-sided, and the answer is incomplete; Student B’s answer is a correlation structure, and the expression is accurate, but still one-sided; Student C’s answer is a fusion of multi-point structure and correlation structure, and the review materials, The ability to extract useful information is strong, the thinking is clear, and the key points are comprehensive. However, the concepts of living space and living environment are confused, so the answers are slightly lacking.

Keywords: Free download of PPT courseware for high school geography compulsory course No. 1 of China Graphics Edition, PPT download of the relationship between vegetation and natural environment, PPT download of physical geographical elements and phenomena, .PPT format;

For more information about the PPT courseware "The relationship between natural geographical elements and phenomena, vegetation and the natural environment", please click the "The relationship between physical geographical elements and phenomena ppt vegetation and the natural environment" ppt tag.

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Update Time: 2024-09-30

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