Theme: THE DEGRADATION OF WETLANDS AND ITS SOCIO ECONOMIC AND ENVIRONMENTAL IMPLICATIONS IN NDOP CENTRAL SUBDIVISION, NORTH WEST PROVINCE CAMEROON
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of 31 years. This increase goes a long way to justify the strong attractive forces Ndop Central Subdivision has on its environs. To simulate such forces, the gravity model was used.
Table 15: Population increase in Ndop Central Subdivision from 1976 to 2007
Year |
1976 |
1987 |
1998 |
2001 |
2004 |
2007 |
Ndop town |
4689 |
6241 |
8307 |
9217 |
10227 |
11347 |
Bamunka |
4774 |
6354 |
8454 |
9384 |
10411 |
11552 |
Bamessing |
11706 |
15582 |
20739 |
23012 |
25534 |
28332 |
Bamali |
5295 |
7048 |
9381 |
10409 |
11549 |
12815 |
Bambalang |
13041 |
17359 |
23105 |
25637 |
28447 |
31564 |
Total pop. Of N.C.S.D. |
39505 |
52584 |
69990 |
77659 |
86168 |
95610 |
Source: Projections based on formula N=Noert From http:// wayneword.Paloma.edu/lmexer 9. htm#Pop growth.
This model is based on Newton’s theory of gravity, which states that "the force of attraction existing between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance that separates them". This theory was simplified in the following formular:
Where ; H= Force of attraction between body I and j.
i and j= bodies under consideration.
k= universal constant of nature
Mi=mass of body ¨i¨
Mj=mass of body ¨J¨
d= distance between two bodies.
This formula is adapted to the context of geography to explain interactions as follows;
Iii=f Mi.Mj
dij2.
Where Iii=interaction between I and j.
I and j= two different regions.
Mi= population of region ¨i¨
Mj=population of region ¨j¨
d ij=distance separating region ¨i¨ and ¨j¨
f = a constant.
55 | 56 | 57 | 58 | 59 | 60| 61 | 62 | 63| 64 | 65 | 66| 67 | 68 | 69 | 70 | 71 |72 |73 | 74 | 75
76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 |87 | 88 | 89 | 90 |91 | 92 | 93 | 94 | 95
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