KERRY WOODS. 21 



exceedingly risky tree to grow above an elevation of about 1,300 

 feet in this district, even under conditions of exceptional shelter 

 such as are obtained on steep northern and eastern slopes. 



B. Scotch Pine. 



As far as could be ascertained from the existing woods, Scotch 

 pine does not appear to thrive well in this neighbourhood. This 

 is perhaps due to the high rainfall generally and also in the 

 higher parts to wind and snow-break. 



This species has not been planted pure extensively, though 

 it is present to a considerable extent in mixture with larch and 

 other species in woods known as Block wood, Nant-y-Rhynau, 

 Cefn and Cwm Golog and in Cefn and Cwm Vron. The pure 

 plantations are at high elevations, and it was found impossible 

 to get a series of groups to investigate the effect of elevation on 

 this species. 



The preliminary inspection showed that there is great difficulty 

 in raising a dense crop of pure pine at altitudes of 1,400 feet and 

 over. So much was this the case that only one group was found 

 that was considered worthy of detailed examination. This was 

 a 54 year old plantation, in Block Wood, standing at an elevation 

 of 1,460 feet in a semi-exposed position (adjacent to Groups IV. 

 and III.). The details are as follows : 



GROUP II. SCOTCH PINE. 

 Area, 0*225 acre. Elevation, 1,460 feet. Age, 54 years. 



Slope gentle towards south, situation exposed. Soil, 6 inches 

 peat overlying yellow loam (sample 2). 

 Ground covered with coarse grass. 



Dominant trees per acre (of mean diameter 7*2 in.) 470 

 Minor trees per acre (of mean diameter 5'6 in.) ... 100 



Total 570 



Sample tree: h = 43 feet. d = 7'5 inches. 

 v = 6'6 cub. ft. = 0-488. 



Volume of Dominant Crop per acre = 3_z_ x 4375 x 0*488 = 2,930 



0*225 



cub. ft. approx. 



Volume of Minor Crop per acre -- 325 cub. ft. approx. 



There were standing on this sample plot 470 dominant trees 

 per acre with a total volume, including bark, of 2,930 cubic feet, 

 and 100 minor trees with approximate volume of 325 cubic feet. 

 Reduced to quarter girth volume without bark the approximate 

 volume becomes 2,000 cubic feet, a volume which at 54 years 



