Population Distribution · 人口分布
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| population distribution/ˌpɒpjʊˈleɪʃn ˌdɪstrɪˈbjuːʃn/ | 人口分布 | rén kǒu fēn bù |
| arithmetic density/əˈrɪθmətɪk ˈdensɪti/ | 算术密度 | suàn shù mì dù |
| physiological density/ˌfɪzɪəˈlɒdʒɪkl ˈdensɪti/ | 生理密度 | shēng lǐ mì dù |
| agricultural density/ˌæɡrɪˈkʌltʃərəl ˈdensɪti/ | 农业密度 | nóng yè mì dù |
People are spread unevenly
- Population distribution 人口分布 describes where people live on Earth.
- Most people cluster in a few favourable places, and huge areas are nearly empty.
- About two-thirds of humanity lives in just a handful of regions.
人口分布不均
- 人口分布(population distribution)描述人们住在地球的哪里。
- 大多数人聚集在少数几个有利的地方,而广阔地区几乎无人。
- 大约三分之二的人类只住在少数几个地区。
Where people cluster
- People gather in mid-latitudes, on low-lying land, and near water.
- Fertile soil, mild climate, and coasts or rivers all attract settlement.
- Deserts, high mountains, and frozen poles repel it.
人口聚集在哪里
- 人们聚集在中纬度、低海拔土地和水源附近。
- 肥沃的土壤、温和的气候、海岸或河流都吸引定居。
- 沙漠、高山和冰封的两极则排斥定居。
Most people live in deserts, high mountains, and polar regions. · 大多数人居住在沙漠、高山和极地地区。
People cluster in mid-latitude, low-lying, well-watered land; harsh areas repel settlement. · 人口集中在中纬度、低海拔、水源充足的地区；恶劣环境排斥定居。
Select all · 所有 factors that attract dense settlement. · 选择所有吸引高密度定居的因素。
Soil, climate, and water attract people; polar cold repels them. · 土壤、气候和水源吸引人；极寒排斥人。
Three densities
- Arithmetic density 算术密度 = people ÷ total land area.
- Physiological density 生理密度 = people ÷ arable (farmable) land — a better guide to food pressure.
- Agricultural density 农业密度 = farmers ÷ arable land; a low value suggests efficient, mechanised farming.
三种密度
- 算术密度(arithmetic density)= 人口 ÷ 总土地面积。
- 生理密度(physiological density)= 人口 ÷ 可耕(farmable)土地——更能反映粮食压力。
- 农业密度(agricultural density)= 农民 ÷ 可耕地;数值低说明农业高效、机械化。
Which density measure? · 属于哪种密度度量？
Sort each definition as arithmetic, physiological, or agricultural density. · 将每个定义归类为算术密度、生理密度或农业密度。
Physiological density divides the population by... · 生理密度是将人口除以……
Physiological density = people ÷ farmable land, so it shows pressure on food supply. · 生理密度 = 人口 ÷ 可耕地，因此它显示了对粮食供应的压力。
Total population divided by total land area is ____ density. · 总人口除以总土地面积是____密度。
Arithmetic density is the simplest measure — everyone divided by all the land. · 算术密度是最简单的度量——总人口除以全部土地。
Match each density to what it divides by. · 将每种密度与其除数进行匹配。
Arithmetic ÷ all land; physiological ÷ farmable land; agricultural = farmers ÷ farmable land. · 算术÷全部土地；生理÷可耕地；农业=农民÷可耕地。
Do not confuse the three densities. Arithmetic uses all land; physiological uses only farmable land; agricultural counts only farmers. A country can have low arithmetic density but high physiological density if most of its land is desert.
不要混淆三种密度。算术密度用全部土地;生理密度只用可耕地;农业密度只算农民。如果一个国家大部分土地是沙漠,它可能算术密度低,但生理密度高。
Egypt looks empty at arithmetic density, because most of it is Sahara desert. But almost everyone crowds into the thin Nile valley, so its physiological density (people per farmable hectare) is one of the highest on Earth.
按算术密度看,埃及显得空旷,因为大部分是撒哈拉沙漠。但几乎所有人都挤在狭窄的尼罗河谷,所以它的生理密度(每公顷可耕地的人数)是地球上最高的之一。
Population distribution is where people live — mostly clustered in mid-latitude, low, well-watered places. Three measures compare crowding: arithmetic (all land), physiological (farmable land), and agricultural (farmers per farmable land).
人口分布是人们住在哪里——大多聚集在中纬度、低海拔、水源充足的地方。三种指标比较拥挤程度:算术(全部土地)、生理(可耕地)、农业(每单位可耕地的农民)。