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2º ESO/POPULATION DISTRIBUTION - Contenido educativo

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Subido el 10 de abril de 2021 por Alicia M.

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Hey there geographers and welcome back to the Mr. Sin channel. Today we're starting unit 2. 00:00:00
We're looking at population and migration patterns and processes. And this is our first unit topic 00:00:04
review. Now we're going to be talking about 2.1. We're going to be looking at population 00:00:10
distribution. We're going to be looking at where and how people live around the world. 00:00:14
And today's your lucky day because we also get to do some math. 00:00:19
No! God! No! God, please, no! No! No! No! 00:00:22
No need to panic. The math for the population densities really isn't too bad. By the end of 00:00:31
this video, you'll be doing it in your sleep or maybe nightmares. Throughout this whole unit, 00:00:35
you're going to be practicing demography. This is the study of population. We're going to be 00:00:39
analyzing births and deaths, disease, migration, and lots more. But before we get ahead of ourselves, 00:00:43
Take a couple of seconds, look at this cartogram map of the world. 00:00:49
What you're looking at right now is the population of different countries. 00:00:53
What do you notice? 00:00:57
Right away, we can see countries like China, India, and Indonesia are massive. 00:01:03
They have huge populations. 00:01:08
While countries like Canada, for example, are almost non-existent on the map. 00:01:10
Today, geographers recognize four main regions around the world 00:01:14
in which the majority of the world's population are actually located in. 00:01:18
The first one is South Asia. 00:01:21
Countries that are in this region are India, Bangladesh, and Sri Lanka, just to name a few. 00:01:23
We also have East Asia, which consists of China, Japan, and the Korean Peninsula, 00:01:28
where many of the population are located on the coastlines. 00:01:32
Up next would be then Europe, which interestingly enough, compared to our first two regions, 00:01:36
is actually seeing some shifts in their population growth. 00:01:40
And they have a lot of people not necessarily living on the coast, but next to raw resources. 00:01:43
And that connects back to the Industrial Revolution. 00:01:47
But we're getting ahead of ourselves. 00:01:50
The last region is in Southeast Asia. 00:01:51
And here we're looking at countries like the Philippines, Vietnam, and Thailand, 00:01:54
where their populations have been booming in recent decades. 00:01:57
Now we've been talking about different regions around the world. 00:02:01
But if we change our scale to a more local scale, 00:02:03
we can actually start to see some trends that are occurring in all these different regions. 00:02:06
When looking at this population density map of China, 00:02:10
notice how the areas with the highest population density are near the coastlines. 00:02:13
and rivers. This isn't by chance. When we look at different population clusters around the world, 00:02:17
we can see common themes. Site and situation factors have a huge impact on the location 00:02:24
of settlement. Remember, site factors have to do with the location itself. It's dealing with 00:02:31
physical features, while situation factors are dealing with factors that exist in the surrounding 00:02:35
area. When looking at major settlements around the world, we can see that many of them center 00:02:40
around fresh water, a river, an ocean, fertile soil. 00:02:45
This is because they need food and water to survive. 00:02:49
And the reason why we see many of these settlements 00:02:52
on coastlines or by an ocean or river 00:02:54
is because they want to trade. 00:02:57
They want access to the water 00:02:59
so they can connect with other settlements 00:03:01
in different geographic areas. 00:03:03
Now, it's not just food and water 00:03:04
on why we live in certain areas. 00:03:06
It's also because of economic reasons. 00:03:08
We wanna live in an area that actually has a job for us 00:03:10
and where we can advance in our careers. 00:03:13
Or maybe we're living in an area because of its political stability. 00:03:15
We feel safe there and secure. 00:03:18
Or it could be because of cultural preferences. 00:03:20
We can see ourselves in the community and we feel a part of our settlement, our city, our society. 00:03:23
And sometimes it's even just because of the historical events that created the settlement in the first place. 00:03:28
We can also look at areas around the world where we actually can see people don't really want to live. 00:03:34
These are areas that are kind of too. 00:03:38
They're too dry, they're too wet, they're too cold, or they're too high. 00:03:40
places that are too dry well it's difficult to be able to produce crops and to be able to have a 00:03:44
stable society places that are too wet actually have a similar problem if it's raining too much 00:03:49
our soil might become oversaturated and especially if we mix that with humidity and heat we actually 00:03:54
might see the nutrients get pulled out of the soil making it more difficult to have sedentary 00:03:59
agriculture and places that are too cold and too high well just it's hard to be able to get all the 00:04:04
resources that we need to be able to survive and to also be able to have a high standard of living 00:04:09
people don't want to live in areas where you're going to struggle to survive especially in the 00:04:14
modern era but at the same time we're now starting to see settlements develop in geographic areas 00:04:18
where before it just wasn't possible to have sustainable societies there now we're seeing 00:04:24
this because of advancements in technology and communication we're now able to modify our 00:04:29
environment to make it hospitable and this is connecting back to a concept we 00:04:34
talked about in unit 1 topic 5 environmental possible ism if you need 00:04:38
more information on that go check out that video okay so so far we've been 00:04:42
talking about where people are living in the world why they want to live in 00:04:45
certain areas and also why they don't want to live in certain areas of the 00:04:48
world now we're gonna be getting into population density more we've mentioned 00:04:51
population density already in this video population density is just looking at 00:04:55
how many people are living in a certain geographic area and we can see 00:04:59
population density broken into three different densities. The first density is 00:05:02
our easiest density defined. It's our arithmetic density. This density would be 00:05:06
calculated by taking the total population and dividing it by the total 00:05:10
amount of land. This density shows us just how spread out people are. If this 00:05:15
number is really high, it probably means that people are clustered together. On 00:05:19
the other hand, if it's really low, it means they're probably dispersed 00:05:23
throughout society. Now one thing to think about when we're looking at this 00:05:26
density remember we're dividing it by total land that means there could be 00:05:29
land in here that no one's living on maybe it's a mountain range maybe it's 00:05:33
just not fertile soil and people don't have a desire to live there or it's a 00:05:37
river there's a variety of factors that could be at play here so this could 00:05:40
create some distortion in our numbers and we just have to take that into 00:05:44
account the next density is our physiological density and this one's 00:05:47
really important we can actually gain more insight into society by looking at 00:05:51
this one. To find it what we're going to do is take our total population again but this time 00:05:55
we're going to divide it by our total amount of arable land. Notice I said total amount of arable 00:05:59
land. This is land that can produce food. What this density will really show us is how much stress are 00:06:05
we going to be putting on each unit of land. The higher this density number is that means we need 00:06:10
to be able to get more food out of just one section of land. The lower it is the less stress will be 00:06:15
put on our land, because we'll have to produce less food for each unit of land. 00:06:21
This means that if it's a lower number, 00:06:25
we're probably gonna be able to protect our natural resources better 00:06:27
by not overusing them. 00:06:30
And if it's a higher number, 00:06:31
we might be at risk of depleting our nutrients that are in the soil. 00:06:32
And we might see desertification occur, and 00:06:35
that could force us to rely to get food from other countries. 00:06:37
So we would have to focus more on trade instead of producing it ourselves. 00:06:41
The last density is our agricultural density. 00:06:44
And this density, we're gonna take the total amount of farmers, and 00:06:46
going to divide it by the total amount of arable land. What this density shows us is how efficient 00:06:49
is agriculture in our society? How much technology are we using? The higher this number, well that 00:06:54
means we're using more human labor to be able to produce food. The lower the number, the less 00:07:00
amount of people are needed in order to be able to produce our food. If this is a lower number, 00:07:06
it means that we could have people specialize in other areas of the economy and we don't need to 00:07:11
have so many people focused on agriculture. 00:07:16
Normally, this shows that the country's more developed, 00:07:18
as they'll start to see then other sectors of the economy 00:07:21
take off. 00:07:23
The higher the number is, well, that 00:07:24
means it's less efficient. 00:07:26
We have to have more people doing the same task. 00:07:27
These densities by themselves are important, 00:07:29
and they show different aspects of society. 00:07:31
But the real insight comes when we compare and contrast them, 00:07:33
and we look at them as a whole. 00:07:36
Take a second, actually, right now. 00:07:38
Look, we have country A and B. What inferences 00:07:39
can you make about our two countries? 00:07:42
Right off the bat, I can see that country A's population is more dispersed compared 00:07:46
to country B. And that's because their arithmetic density is only 32.30, while country B's arithmetic 00:07:53
density is 109.63. 00:08:00
I could also see that country A needs to actually produce less food per unit of land compared 00:08:02
to country B, even though country A has a higher population than country B. This would 00:08:07
lead me to believe then that country A has more arable land to be able to produce food on. 00:08:12
I could see that by looking at the physiological densities. Also I could gain from this information 00:08:16
that country A is actually less efficient at producing food. Their agricultural density is 00:08:21
higher than country B's, showing that country B then is more efficient. This means that country B 00:08:27
can have more of its citizens working in other sectors of the economy and it's probably because 00:08:32
they're using more technology in the production of food. All right hopefully right now your head 00:08:37
isn't spinning we're only just beginning unit two there's a ton of cool stuff in this unit if you 00:08:41
are still struggling with population densities check out some of my other videos that focus on 00:08:46
the math and applying it to the real world i think my favorite video out of all of them that i've 00:08:50
made is actually my minecraft one that looks at population densities in minecraft and if you're 00:08:54
still struggling with ap human geography make sure to check out the ultimate review packet there's a 00:08:59
link in the description below it'll help you study all these different concepts now next time we're 00:09:03
we're going to be getting more into population and looking at some really cool things. So don't 00:09:08
forget to subscribe so you don't miss the next video. I'm Mr. Sin. Thank you so much for watching 00:09:12
the Video Geographers. Don't forget to check your answers to the quiz. It's in the comments below. 00:09:17
And until next time, I'll see you online. Oh, hey, I didn't see you there. Hanging out with 00:09:22
the end cards I see. Awesome. Hey, if you're ever looking for more Mr. Sin content, don't forget to 00:09:29
check me out on Twitter and Instagram or Facebook. 00:09:34
There's links to that in the description below. 00:09:37
All right, this is really corny and awkward, 00:09:39
so I'm gonna end this, but have a great day, geographers. 00:09:40
I am done. 00:09:43
Subido por:
Alicia M.
Licencia:
Dominio público
Visualizaciones:
66
Fecha:
10 de abril de 2021 - 17:35
Visibilidad:
Público
Centro:
IES LA SENDA
Duración:
09′ 46″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
260.72 MBytes

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