Geografisk Tidsskrift, Bind 75 (1976)A SIMPLIFIED AGRO-GEOGRAPHICAL DIVISION OF DENMARKAA. H. KAMPP Side 45
Kampp, Aa.H.,
1976: A Simplified Agro-Geographical Division Danish agro-geographical differences are still so conspicuous that a regional division is justified. A simplification from the seven regions into three districts is proposed on account of the administrative reorganisation of 1970. Dr. Aa.H. Kampp,
Cæciliavej 50, Valby, DK 2500. An agro-geographical division of Denmark into seven soil fertility regions (fig. 1) has previously been worked out (Kampp 1959). It was based on isodones: the average yield per hectare for seven important crops (barley, wheat, rye, oats, mixed grain, mangels, and swedes) for the three-year-period 1937-39, and isodenses: the areas of barley + wheat as a percentage of the rotation area 1939. The division has been checked on maps for 1946 and 1962 and on maps from 1907 and 1838. It has also been compared with a map showing soil conditions as far back as 1688, and an attempt was made to compare with medieval and even prehistoric days through marking out the about 1800 parishes in Denmark in 1925 by one dot per parish. This comparison was possible because the division into parishes is supposed to date back to prehistoric times. The through centuries almost unchanged size of the parishes allowed an estimate for the relative density of population which in turn may be supposed roughly to depict the quality of soil. Up till 1970 specified statistics were available from every parish and these small statistical units were the basis of the agro-geographical division of Denmark. Since that year the parish is, however, no longer a unit of local government, and the up till then existing 1300 municipalities have been amalgamated into 273, a municipality being now the smallest unit for administrative purposes. As moreover many statistical facts which formerly could be had for the 1800 parish units are today only registered for the 14 counties, the possibility of constructing maps as detailed as those on which the seven-region-division was based is definitely ruled out. During the last decades important changes in Danish agriculture have taken place at an accelerating speed throughout the country. This period has for one thing seen a change in the agricultural structure, the total number of holdings and farms having declined from about 200.000 in 1960 to about 129.000 in 1974 primarily due to a decline in the number of smallholdings, especially towards the east (Kampp 1971). Moreover the increasing development of mechanisation running parallel with the migration of farm labourers to urban trades has caused a rapidly growing tendency towards rationalisation. The farming proper is today the smallest branch among the occupational sectors of agricultural production. The branches for supply to the farmers and for processing and sale of the products have grown considerably, so that each person occupied in farming provides occupation for two or three other persons. As an example the distribution of lime and fertiliser in the fields is often undertaken by the supplier just as the feedstuff business takes over the grinding, drying, mixing, fetching and bringing of grain for feeding purposes. The number and size of machine pools have been growing, there is an increasing tendency for the farmers to lease machines in stead of buying them. Although this development to a certain degree is delayed by conservatism, a great many Danish farms and holdings have been reducing the number of crops and a rising number are approaching the fully specialised production with only few or even one single crop thus adapting the field pattern to a more profitable use of machinery. Likewise it is getting more and more common to give up or to keep only one single form of animal production, so that today more than one third of the holdings have no horned cattle. From 1962 to 1971 a reduction of more than 20% took place and a growing part of the animal husbandry is being concentrated in the larger farms. Partly as a consequense of this development the cereal areas has increased from 1.277.000 hectars in 1950 to 1.800.000 hectars in 1974. The decrease of stocks of horned cattle up till 1972 and to a very high degree of horses together with the increase of cereal up till 1972 has in spite of the wide-spread use of shortstrawed strains, especially towards the east, caused a growing surplus of straw which is burned in the field when the harvest is over. Of course the ashes give plant nutrients to the soil but no humus, and the strong heat caused by the fire kills part of Side 46
the micro-organisms. For the moment, however, arguments have been put forward with the purpose of diminishing this form of straw destruction, partly because of the danger of fire, the reduced road safety, but also on account of the value of the straw, e.g. as fodder in deficiencyregions, as fuel, and as raw product for paper and building materials. However, it does not pay to transport straw over great distances. The demand of an accelerating agricultural productivity could only be met by an increasing use of fertilisers and the growing control of weeds, plant diseases and vermins by means of herbicides and pesticides with the secondary effects of polluting the soil and consequently changing especially the micro-flora and fauna. For a certain amount of years the potential of the soil may be pressed beyond its natural border of capacity; but it should not be overlooked that such measures on a long view may cause unpredictable consequences. Rationalisation
penetrated earlier into farms than into smallholdings (fig. 2 - 3) because the farmers were more in favour of innovation and could better afford big machinery. Consequently they were able to produce at a lower cost per area unit. Even if this is the general tendency there will of course be exceptions in the various size groups of holdings. A remarkable change in crops has taken place above all as far as barley is concerned ( fig. 4-5). The barley areas have increased from 494.000 hectares in 1950 to 1.455.000 in 1974. (Today barley is in Denmark synonymous with spring barley. Since 1968 winter barley has been prohibited because it is the winter host of Mildew, Yellow Rust and Brown Rust thus diminishing the yield of spring barley). During the first half of this century barley was almost exclusively grown in East Denmark and the Limfjord-region with the main ice margin from the Weichel-ice-age as an agro-geographical borderline (Kampp 1974) which, however, has been Forenkling af Dalmosegårds drift 1949 - 1969, idet hornkvæg, heste og høns er afskaffet. I: byg, 2: hvede, 3: havre, 4: sukkerroer til fabrik, 5: kålroer, 6: foderbederoer, 7: udlæg, 8: frø, 9: bælgplanter, 10: permanent græs. Forenklingen
på et husmandsbrug i samme landsby som Dalmosegård
Side 47
gradually eliminated as the fertiliser-technique has been spreading over even the western part of Jylland and new strains of barley with larger yielding capacity also on sandy soils have been developed. A highly contributory cause of the increased barley areas is the growth of pig breeding the number of pigs having been doubled during the last 20 years (until 1972), a development seen all over the country not least in Jylland. Concurrently wheat has become more and more east-oriented (fig. 6) with a continuously increasing yield per hectare. The wheat areas have increased especially in Lolland-Falster after the introduction of shorter and more stiff-strawed strains instead of the traditional ones with the drawback that in the fertile soil they had very long straws and were consequently more easily flattened by showers thus becoming more difficult to harvest. Simplification of the DivisionSimplification The original division was primarily started on the basis of an isodone map, but as the yield of the crops are now only statistically calculated for counties an isodone map only shows a rough east-west orientation (fig. 7) illustrating that the direct connection between agriculture and nature has not been reduced to a very considerable degree. It is still possible to depict it cartographically. The isodense map of 1939 however turned out to be an equally valid basis of a regional division as the isodone map. Maps of 1946 and 1962 showed very few changes and an isodense map 1971 which can be calculated for municipalities (fig. 8) shows that the agricultural pattern has not changed to a degree that would reduce the seven-region-division into only a historical picture of a closed period of Danish agro-geographical conditions. In spite of the altered conditions of distribution of barley and wheat as described above and the much larger figures for 1971 (table 1) the isodense map can still be used as the basis of a division. Of course the larger statistical units prevent a very
detailed division and the isaritmic maps Side 48
Present Distribution of some Crops and Animal HusbandryEven if the
borders of the regions/districts appear to be The trend of the
distribution of dairy cows which has must be concluded
that on account of the administrative Side 49
RESUMEFormålet med
inddelingen af Danmark i 7 landbrugsregioner Side 50
REFERENCESDanmarks
Statistik (1968): Statistiske Undersøgelser n0.22,
Danmarks
Statistik (1969): Statistiske Undersøgelser no. 25,
Danmarks
Statistik (1973): Statistiske Meddelser, 1972: 9,
Danmarks
Statistik (1973): Landbrugsstatistik på kommuner
Kampp, Aa.H.
(1959): Landbrugsgeografiske studier over Danmark,
Kampp, Aa.H.
(1967): De levende råstoffers geografi. Gads
Kampp, Aa. H.
(1967): The Agro-Geographical Division of Denmark
Kampp, Aa.H.
(1970): Landbrugsgeografisk materialesamling, Kampp, Aa.H.
(1971): Changes in the Distribution of Land in
Kampp, Aa.H.
(1974): Kvartalets kort. Geografisk Orientering Kampp, Aa.H.
(1975): Kvartalets kort. Geografisk Orientering
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