At present, most intensive forest management is practised in the State forest as well as in the communal and private forest areas, which latter as stated, are largely in farmers’ wood lots since the law forbids the union of small farms into large estates. There is little communal property, and large private estates are also rare. The State owns about 24% of the forest area or 142,000 acres, of which one third is nonproductive or otherwise occupied, and one third consists of coniferous plantations. Excepting in the beech forest, most of the timber is of the younger age classes, below 60 to 80 years, and it is anticipated that the cut will have to be reduced, and the import of wood and woodenware increased.
Artificial reproduction is the most general silvicultural practice except in the beech forest which is reproduced naturally after preparation of the soil and sowing acorns for admixture at the same time, spending altogether $12 to $15 per acre in this preparation. Since 1880, thinnings have been based on the idea of favoring final harvest trees somewhat after the French fashion; they are begun in the twentieth to thirtieth year and are repeated every three years, aided by pruning. Then in each subsequent decade the return occurs in as many years as the decade has tens. Especially in the direction of thinnings, the German practice and even theory is outdone, the thinnings being made severer and recurring more frequently.
More than a hundred years ago the State began the reclamation work of the dunes and heaths, but it progressed more actively only since the sixties of last century as a result of legislation had in 1857. In 1867, a special Dune Department was instituted, and through the effort of a State engineer, Capt. Dalgas, an association was formed for the reclamation of heaths and moors. A small subvention of $600 started the work of the association, in its useful campaign under the advice of Staats planteur (State forest planter) Jensen Tusch. The State subvention now amounts to about forty thousand dollars annually, and the success of the association has been such that it has become almost a fad for large land owners and others to buy up these waste lands and have them planted through the agents of the Heath Association. The planting is mainly of spruce in plow furrows at a cost of $10 to $12 per acre; 60 to 80 year old stands of earlier plantings testifying to the possible results.
In the last 40 years nearly 200,000 acres of heath have been planted, of which over one-half are to the credit of the association.
For the education of the higher grade foresters a department of forestry (now with two professors) was instituted in the Royal Veterinary and Agricultural High School at Copenhagen in 1869, with a course of five years including one and a half year of practical work. This education is given free of charge.
The Heath Association educates its own officers, including in their subjects the management of meadows and peatbogs.
A Forestry Association, composed one-half of forest owners, with its organ Tidskrift for Skovvaesen, in existence since 1888, and a valuable book literature, in which the problems of the heath are especially fully and authoritatively treated, places Denmark in the foremost rank in the forestry world in these particulars.
Among the prominent contributors are to be mentioned, besides Reventlow and Dalgas, P. E. Müller, well known by his discussions of the problems of moor soils. From 1876 to 1891, he issued a magazine, in which Oppermann contributed a history of Danish forestry. The latter author also, in co-operation with Hauch, published in 1900 a Hand-book of Forestry.