Presentation on the world around water wealth. Presentation on the theme "water resources of the world"

Water suitable for use.

In a broader sense, in about waters in liquid, solid and gaseous states and their distribution on Earth.

Inland waters of Russia

Straibulova A. N.

4. What applies to inland waters?

Inland waters

Rivers

lakes

swamps

Glaciers

artificial reservoirs

The groundwater

• Our country is rich in significant river systems. All rivers are of great importance for the national economy. Rivers are used for navigation, electricity generation, irrigation of fields, water supply to settlements, and fishing.

The rivers of Russia receive water from rains, melting snows, glaciers and underground drains. Almost all Russian rivers freeze in winter.

• In Russia, there are more than two million small rivers, or 99.9% of the total number of watercourses. Only 0.1% falls on medium and large watercourses. Small rivers feed the main arteries, determine their flow, purity and life. Therefore, if large rivers become shallow, then the reasons should be sought in their tributaries, since a significant part of the river flow occurs through them.

• Each river system represents unity in economic, social and ecological terms. Small streams are important local resources. These rivers are widely used in various areas of the national economy: small hydroelectric power stations, water mills are built on them, they are used for water supply, agricultural production, irrigation and recreation.

Rivers of Russia

• Arctic Ocean basin - 2/3 S of the country

• Ob (Irtysh, Ishim, Tobol), Lena (Vilyui, Aldan),

Northern Dvina, Olenyok, Khatanga, Yenisei (Angara, Lower Tungusska, Podkamennaya Tungusska), Pechora, Yana, Indigirka, Kolyma.

• Pacific Ocean Basin - about 20% S of the country

• Shilka, Argun, Amur (Zeya, Bureya, Ussuri), Anadyr.

• Internal runoff basin - about 10% S of the country

• Volga (Oka, Kama), Ural, Terek.

• Atlantic Ocean basin - about 3% S of the country

• Western Dvina, Volkhov, Don, Kuban, Dnieper.

The influence of relief on rivers

• The fall- excess of the source of the river over the mouth (in meters). Source Height - Mouth Height = Dip.
• slope= Drop (in cm)/Length (in km).

Climate impact on rivers

• annual runoff- the amount of water that the river

endures per year (in km).

• Water consumption- the amount of water that flows

through the cross section of the river per unit of time

• River mode– intra-annual distribution of runoff.

Nutrition

• rainy
• glacial
• snowy
• ground (underground)
• mixed

high water

• solid stock- small particles (silt, clay, sand) that the river carries.

Delta of the Lena River

Natural disasters associated with the river

• What is a flood?
• What does it lead to?
• What is their reason?
• Where in our country do floods occur most often?
• How is flood damage estimated?
• What flood protection methods do you know?

"Water Resources of the World" - The riches of the World Ocean can be considered: What minerals are rich in the World Ocean? Since the beginning of the 1990s, more than 40 thousand reservoirs have been operated on Earth. What are the ways to solve the problem of providing water resources? Sometimes such workings go under the seabed at a distance of 10-20 km from the coast.

"Water Resources of Russia" - Natural phenomena: Mudflows - mud and stone flows. SURFACE UNDERGROUND WATER RESOURCES HUMAN CANNOT LIVE WITHOUT WATER! To consolidate knowledge about the inland waters of Russia (concepts, types of water). "Water resources. Natural phenomena. Presentation on the topic: Most of the fresh water is used in agriculture for irrigation.

"Water Resources" - It is impossible to stop development. The reason is the lack of reliable information about the actual water consumption. Planning measures for water supply requires a reliable forecast of future water consumption. The need to control and optimize the management of the regime of water bodies. Head Department of Integrated Use of the Federal State Educational Establishment of Higher Professional Education of the Moscow State University of Natural Resources Development Ratkovich L.D.

"Water environment" - Theme of the lesson: Water environment. Comparison of living conditions in different environments. Questions for repetition: Lake reeds. Today we will learn: Look for water where cattail grows. Inhabitants of the aquatic environment. Cattail is narrow-leaved.

"Protection of water resources" - For the production of 1 ton of paper - 900M3 of water. Ice. Livni. Water cadastre. A large metallurgical plant consumes about 1 million a day. To improve production technology at enterprises. Snowfalls. Avalanches. It takes 100M3 of water to produce 1 ton of sugar. For the production of 1 ton of rubber - 1500M3 of water.

"Water plants" - 1. Introductory speech of the teacher: The value of water for plants. Biology teacher of the highest category Golubkova Olga Georgievna. The teacher corrects the search activity of students in the course of the assignment. Biology lessons (botany, ecology) with the use of information technology. The teacher invites students to the board at will.

The world

Topic: Water wealth of our region

Lesson type: learning new material

Target: create conditions for students to get acquainted with the diversity of water bodies of our region, to reveal the significance of water bodies in nature and human life; contribute to the formation of ideas about water bodies, natural and artificial water bodies, water bodies of the country, parts of the river; develop interest in the subject "World around"

Planned educational outcomes

Subject: will have the opportunity to learn how to work with the textbook; to form the concept of a river and its parts, to teach to distinguish between reservoirs of natural and artificial origin, to recognize them by description; to form concepts of the importance of water bodies in life

Personal: have a responsible attitude to learning; show readiness and ability for self-development and self-education based on motivation for learning

Metasubject Results

Cognitive UUD: search for the necessary information in the textbook; find patterns; observe and draw your own conclusions

Regulatory UUD: be aware of the task, accept it, strive for its successful solution; plan your actions; control and evaluate your work

Communicative UUD: readiness to listen to the interlocutor and conduct a dialogue, express one's opinion and argue one's point of view

Basic concepts: reservoirs, source, channel, mouth, tributaries

Equipment: TV, laptop

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Slides captions:

Lesson of the surrounding world on the topic "Water wealth" Grade 4 Municipal state educational institution "Krymrozovskaya secondary school" Primary school teacher Tomko Valentina Vasilievna

Outsole Slope Top

Parts of the river. What is the beginning of a river called? Source What is the mouth of a river? The place where a river flows into another river, lake or sea is called a mouth. Mouth What is a river bed? A channel is a depression through which a river flows. The river has right and left banks. How to define them? If you look towards the flow of the river, then the right bank will be on the right, and the left bank on the left. Right bank Left bank On its way the river meets other rivers and streams that flow into it and give their water. They are called tributaries. Left tributary Right tributary

"Water resources of our region"

WATER BODIES Natural Artificial? Created by nature Created by man River, sea, lake, ocean, swamp. Pond, canal, reservoir

TAIGAN RESERVOIR

NORTH CRIMEAN CANAL

What is the importance of water bodies for nature and man?

Waste water Garbage Fertilizers and pesticides Vehicle washing

Reflection In today's lesson, I learned .. In this lesson, I would praise myself for ... After the lesson, I felt like ... Today I managed ...

On the topic: methodological developments, presentations and notes

Water wealth of our region

The world around them Topic: Water resources of our region Lesson type: learning new material Purpose: to create conditions for students to familiarize themselves with the diversity of water bodies in our region, to reveal the meaning of water ...

Water wealth of our region

The presentation is intended to familiarize students with some of the rivers of our region. Where do they originate, where they flow, the flora and fauna of these rivers ......

Lukonina Svetlana

slide 2

• The water shell of the globe - oceans, seas, rivers, lakes - is called the hydrosphere.
• It covers 71% of the earth's surface. The earth has a colossal volume of water of about 1.5 billion km³. However, 98% of this volume is salt water, and only 28 million km³ is fresh water.

slide 4

Importance of water in the world economy

• Habitat for aquatic organisms, source of valuable proteins (in the form of fish and other organisms)
• It is used in almost all sectors of the economy: in the energy sector, for irrigation of agricultural land, for industrial, municipal and domestic water supply.

slide 5

Water reserves

• The volume of water on Earth reaches almost 1.5 billion km³. But the main volume of fresh water (almost 80%) is the water of glaciers, snow covers, ground ice permafrost. Currently, they are not used and are considered as potential water resources. The one-time volume of land river waters is small - only 2000 km³.

slide 6

Water management balance of the world

• Municipal water supply.
• Industrial water supply.
• Water supply for agriculture.

Slide 7

Municipal water supply

• Water consumption rates per person average 120-150 liters per day. But in the cities of industrialized countries, water consumption is especially high. For example, in European countries it rises to 300-400 l / day

Slide 8

• Plants and factories require a lot of water. Only 320 km³ of water is taken from water sources for the needs of energy, while 20 km³ is lost. With the development of industry, water consumption is increasing, and at the same time, water pollution by industrial waste is increasing.

Slide 9

Agricultural water supply

• The largest water consumer is agriculture. Effluent from livestock farms is a particular problem. They are extremely loaded with organic compounds and cause especially rapid pollution of water bodies.

Slide 10

• Provision of water resources is measured by the volume of river flow per capita
• population per year. Among the regions of the world, Australia and
• Oceania - 83 thousand m³ per person per year. This is not so much due to the abundance of water,
• How much with the sparsely populated part of the planet.

slide 11

• The most water-rich countries in the world include Suriname, Gabon, Canada, New Zealand, and Norway.
• Countries experiencing a shortage of fresh water: Kuwait, Libya, Saudi Arabia, Israel, Egypt.

Many of these countries use seawater desalination plants.

slide 12

Reasons for the scarcity of fresh water

• urban growth
• creation of powerful industrial centers
• pollution of water bodies by domestic and industrial effluents;
• Reducing the flow of rivers; (consequences of deforestation, plowing of floodplains and drainage of swamps);
• Reducing the ability of water bodies to self-purify (they cannot cope with such a volume of waste);
• Excessive consumption and pollution of groundwater (shallowing of rivers and lakes)

slide 13

Problems related to the use of water resources

• fresh water reserves are by no means unlimited, and practically uncontrolled industrial discharges threaten to destroy the ecosystem of many water bodies.
• The pulp and paper and chemical industries are destroying all life in rivers and lakes.
• ill-conceived construction of reservoirs and dams (especially on the Volga) lead to the almost complete disappearance of many species of fish.
• groundwater pollution.

Slide 14

Measures to protect water resources

• savings at work and at home
• wastewater treatment;
• development of new technologies that ensure maximum utilization of industrial waste;
• stopping the discharge of raw sewage
• creation of water protection zones adjacent to water areas;
• planting in the coastal strip of rivers of tree and shrub vegetation.

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1 slide

2 slide

Relatively recently, water was considered one of the free gifts of nature. But recently this attitude has changed, especially since fresh water resources make up 2.5% of the volume of the hydrosphere, of which most are the glaciers of Antarctica, Greenland, Arctic ice, mountain glaciers, which are practically inaccessible for use.

3 slide

The main source of meeting the needs of mankind in fresh water are river waters - 47 thousand km3, of which only 1/2 can actually be used. Fresh water consumption is about 5 thousand km per year. In addition, its main consumer is agriculture, where irretrievable water consumption is very high, especially for irrigation.

4 slide

Resource availability Fresh water reserves on Earth are distributed extremely unevenly. In the equatorial zone and in the northern part of the temperate zone, it is available in abundance and even in excess. The most water-abundant countries are located here, with more than 25 thousand m3 per capita per year. In the arid zone of the Earth, which covers about 1/3 of the land area, the water shortage is felt especially acutely. Here are the countries with the least water, where per capita is less than 5 thousand m3.

5 slide

Consumption of water resources Consumption area Consumption volumes Agriculture 69% Industry 21% Utilities 6% Reservoirs 4%

6 slide

The following do not have access to clean water: More than 1 billion people in Asia; 350 million in Africa; 100 million in Latin America.

7 slide

Good-quality water is used by only 1/3 of the population, 1/3 is not sufficiently provided with it, and another 1/3 uses poor-quality drinking water. Consumption of poor quality water is the source of 3/4 of all diseases and 1/3 of deaths.

8 slide

Ways to solve the water problem of mankind - reducing the water intensity of production processes and reducing water losses. construction of reservoirs (USA, Russia), regulating river flow. territorial redistribution of river flow (USA, Canada, Australia, India, Mexico, China, Egypt, CIS countries) transportation of icebergs from Antarctica

9 slide

collection of rain and melt water in underground storages closed recycled economy cessation of discharge of industrial, agricultural and domestic wastewater into inland waters and seas. desalination of sea water (used in the countries of the Persian Gulf, the Mediterranean, in Turkmenistan on the Caspian Sea) Ways to solve the water problem of mankind