FORESTRY IN SWITZERLAND. 



223 



THE YIELD IN CANTON ZURICH. 



In this canton, however, owing to its perfected system of forestry, the 

 average annual yield per hectare of woodland (excepting in the private for- 

 ests) is much higher than that given above for all Switzerland, as for instance : 



Average annual yield per hectare in — 



Cantonal forests 



Township and corporation forests. 

 Private forests 



All Switzerland. 



Ctiiic meters. 

 4-75 

 3-57 

 3-37 



Canton Zurich. 



Cubic meters. 

 6.4 

 5-7 

 3-9 



The low average of yield in the Zurich private forests is ascribable to a 

 lack of proper care, and also to the great extremes existing in the ages of the 

 trees therein, many of them being very old and many others very young. 

 The total wood yield of the forests, &c., of canton Zurich is estimated as 

 follows, viz. : 



Cubic meters. 



From the cantonal forests 12,191 



From the township and corporation forests 109,507 



From the private forests ; i09>777 



From orchards, vineyards, &c 21,045 



Total 252,520 



RAPID INCREASE OF YIELD. , 



As showing the nearly threefold increase of profit yielded, in francs, per 

 hectare, by the Zurich cantonal forests during a period of fifty years of culti- 

 vation, I quote the following table: 



Capital 

 value. 



1830 to 1840. 

 1840 to 1850. 

 1850 to i860. 

 i860 to 1870. 

 1870 to 1878. 



Francs. 



782.00 



S04.00 



1,159.00 



1,876.00 



2,264.00 



"X" 



COST OF WORKING AND MAINTENANCE. 



According to the reports for 1885 of the management of the forestry 

 system belonging to the city of Zurich proper (which comes under the class 

 known as township forests), the receipts fell short of the estimates by 

 4,233.20 francs on a total estimate of 85,300 francs. 



