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3.4 Structural Change and Land Conversion
Structural
change (in agriculture) leads to a redesignation of land use patterns. In many regions
different land use forms compete with one another resulting in conflicts on various
levels. |
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Agriculturally
used areas are expanding at the expense of forest land. It has been estimated that already
more than eight million km2 of the virgin tropical rain forest have been
converted for agricultural purposes. Of those, approximately three million km2 are
used as pasture. Large areas of forest have been cleared especially in Central and South
America for agro-industrial projects such as extensive cattle farming. |
Forest land converted to pasture or arable
fields |
Arable farming
is moving closer to areas where livestock is raised. For example, in Butana, Sudan, the
pasture areas used by pastoralists were reduced due to the continuous expansion of
irrigation schemes and mechanized rain-fed cultivation. To achieve this change in the land
use pattern, the national government repealed the autochthonous land tenure system,
formally converted the land to state property, allowed
free access and privatized the most valuable arable areas. |
Pasture areas
converted to arable fields |
| The conversion of natural
pastures to arable land in Butana, Sudan The access to resources necessary for survival
was secured in the past with a combination of land tenure systems. Natural pastures were
common property and wadis and wells were privately owned by families. The social and
economic consequences of the lost pastures as exclusive common property were that the
pastoralists' mobility was restricted and familiar strategies could no longer be followed.
Due to the mechanized crop cultivation on large areas in the South of Butana, the property
rights between stock keepers and crop farmers has changed sustainably. New market and
dependency relationships have evolved.
While in the past the ethics of the Shukriya enabled the use of
pastures free of charge in the area of Gedaref since it was common property, now sorgo
straw and water must be purchased in dry years.
(Kirk 1998a) |
With the
growing urbanization and industrialization, the need for
land for non-agricultural purposes strongly increases. Thus, the following uses compete
for the limited factor land:
Residential areas and shopping
centers,
Industrial plants,
Natural reserves and watershed areas,
Recreational areas and
land-intensive places to play sports (golf courses),
Agriculture and forestry,
Transportation/infrastructure measures.
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Agricultural
and forestry land converted to construction and/or recreational areas |
The dynamics of
transforming agricultural land for non-agricultural purposes are illustrated with an
example from Java. The sites that are selected for conversion are very often ones that are
highly productive, can be irrigated, and are easy to access due to a well-developed
infrastructure. An efficient land use planning for securing the high agricultural
potential of the region and to avoid numerous conflicts over land could help to improve
the situation. |
Increasing dynamics of land
conversion |
Photo 5: Transformation of an agricultural area for a golf course

(Source: GTZ)
| Transformation of rural land to urban
land in Indonesia The agrarian
census of 1993 shows that the land used for agriculture has been reduced from 6.4 million
to around 5.5 million hectares in Indonesia in the previous ten years. Particularly
painful for agriculture in this case is the high percentage of highly productive sawah
land which has been taken out of agricultural production in this period of time. All in
all, the amount of the reduction was more than 400,000 hectares within the period 1983 -
1992. This is equal to an average loss of around 1.4% per year and an estimated loss of
more than 500,000 tons of rice per year. How quickly the transformation is taking place
can be seen in the time period from 1969 to 1985 when 1.2 million ha were brought under
irrigation through the erection of new irrigation facilities. At the end of the 80s,
25% of the land had already been converted to non-agricultural uses.
(Löffler 1996:55) |

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