46 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



seedling trees raised for the purpose in nurseries attached to 

 forestry stations. 



The regeneration of forests of the Chosen-matsu is a more 

 difficult task. Its seeds are so much sought alter and eaten by 

 rodents and certain birds, that the only way of insuring the 

 growth of new forests of this tree is by raising seedlings in 

 quantity in nurseries, and planting them when sufficiently large 

 on the mountain sides and in the valleys. The Chosen-matsu 

 grows well with the Doronoki and the Chosen-doronoki, and 

 mixed plantings of these trees would make successful and 

 remunerative forests. 



Chosen Kara-matsu seedlings will not vegetate naturally in 

 forest soils rich in humus, and any one who traverses the forests 

 of this tree in north-eastern Chosen will be struck by the entire 

 absence of young plants, except alongside the paths or in areas 

 devastated by fire. However, regeneration of forests of Chosen 

 Kara-matsu may be readily effected if the undergrowth be 

 burned off some five years before the forests are cut down. The 

 interval of five years, from the burning of the undergrowth to 

 the felling of the trees, will afford the seeds shed from the parent 

 trees ample time to vegetate and develop into seedling plants 

 capable of taking full care of themselves. After five years the 

 whole of the treated area of the Chosen Kara-matsu forest 

 should be felled. This burning of the forest undergrowth, if 

 done carefully and under the control of competent forestry 

 officers, would entail no danger to the existing forest of Chosen 

 Kara-matsu. 



From Keijyo south, the Keyaki (Zelkova serrata) could be 

 planted with success. The planting of the Kuri (Castanea 

 crcnatd) in quantity is most wise, and should be encouraged ; the 

 planting of Aka-matsu (Finns densiflora) promises to be the 

 most successful work in reafforestation yet attempted in Chosen. 

 In reference to this tree. I venture to suggest that it might with 

 advantage be planted more thickly together than is at present 

 usually done. This pine will grow on the most barren of soils ; 

 in fact it thrives where no other tree will grow, but it is 

 important that the seeds should be obtained from native trees 

 only. For the preservation of river-banks I strongly recommend 

 the planting of the No-nire ( Ulmus pumild). As a street tree 

 the form of the Chosen Yanagi (Salix koraiensis) with pendant 

 branches is very desirable, since this tree can be pruned and 



