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2nd Revision |
| Data - Population | ||||||
| Population and Land Area in China by Crop Value | ||||||
Crop
Value |
Area |
Area |
Population |
Population |
Population |
|
missing |
25,000 |
0.3 |
3 |
0.2 |
108 |
|
no crops |
5,864,625 |
62.5 |
184 |
16.4 |
31 |
|
< 500 |
275,400 |
2.9 |
23 |
2.1 |
85 |
|
500-1000 |
390,525 |
4.2 |
32 |
2.8 |
81 |
|
1000-1500 |
416,650 |
4.4 |
47 |
4.1 |
112 |
|
1500-2000 |
426,325 |
4.5 |
66 |
5.9 |
155 |
|
2000-2500 |
325,900 |
3.5 |
79 |
7.1 |
244 |
|
2500-3000 |
289,700 |
3.1 |
89 |
7.9 |
307 |
|
3000-3500 |
304,600 |
3.2 |
110 |
9.8 |
360 |
|
3500-4000 |
213,050 |
2.3 |
90 |
8.0 |
423 |
|
4000-4500 |
183,375 |
2.0 |
82 |
7.3 |
446 |
|
4500-5000 |
168,700 |
1.8 |
76 |
6.8 |
452 |
|
5000-5500 |
151,925 |
1.6 |
69 |
6.1 |
453 |
|
5500-6000 |
119,675 |
1.3 |
54 |
4.8 |
455 |
|
> 6000 |
229,900 |
2.4 |
119 |
10.6 |
519 |
|
| Source: IIASA LUC-GIS | ||||||
| In
order to prevent misinterpretation, this table needs some explanation. We have
here combined spatial population data of China with a map on average crop values (which you can also find in this application). Since crop values could be
only calculated for those 5 x 5 km grid cells, in which the land-use map indicated crop
cultivation (which is, for instance, not the case in steep mountains) quite a number of
grid cells had zero value ("no crop"). However, the population within a
county is distributed monotonously (because we have no information, how the
population is distributed within the counties). The overlay of empty grid cells
from the crop value maps ("no crop") with grid cells that are filled with
population leads to the large percentage of population (63%), which lives in areas with
"no crops". However, please be aware, that these people do not
necessarily live far away from cropland. Quite frequently the cropland is just a
5 km grid cell away. In other words: the table is calculated on the basis of those 5 km grid cells which have both crops and population. For instance, there are 119 million Chinese that live in crop areas (grid cells) where the crop value is more than 6000 Yuan per hectare. This is both "good" and "bad" news: It indicates that the most productive crop areas in China are those, where also many people live. It is good for these people that they have a relatively high income from their crops - however, it is bad news for the land, that so many people are crammed into these productive areas. In fact, the population density in these most productive areas the highest of all crop areas - some 519 people per square kilometer. |
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| Related Tables & Charts | ||||||
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| Revision 2.0 (First revision published in 1999) - Copyright © 2011 by Gerhard K. Heilig. All rights reserved. (First revision: Copyright © 1999 by IIASA.) | ||||||
