12 BULLETIN 8 6 3, U. S. DEPABTMEXT OF AGRICULTURE 



Topic III. LOCATION AND EXTENT OF FARM WOODLANDS 



Aim. — To teach how to determine the location and area of land on 

 the farm on which trees should be grown as a crop. 



Sources of information*. — Farmers' Bulletins 358. 745. 1071, and 

 1117; Department Bulletin 481. 



Guides to study. — Places about the farm where forest trees and 

 woods should be kept. Timber is a poor-land crop. Places where 

 forest trees are profitable: (1) Poor soils. (2) Steep slopes. (3) 

 Eroding soils. (4) Rocky land. (5) Wet land. (6) Unused cor- 

 ners or waste places. 



Extent of woodlands in the locality : Proportion of crop land and 

 woodland. The total acres of woods on 10 to 20 representative 

 farms in a locality. 



Figure 6. — Effect of deforestation. Sand "bars in the stream channels. Millions of 

 dollars are spent yearly in dredging our rivers to keep them navigable 



Practical exercises. — From the data gathered in the survey con- 

 struct a chart showing the proportion of crop land and woodland, 

 the total crop acreage, and the total woodland acreage. Study the 

 places where you find trees growing and list such locations as in- 

 dicated in topics for study. What type of trees do you find com- 

 monly growing in each of these localities ? What farms could profit- 

 ably plant forest trees? What sort of trees should be planted in 

 case a young forest is established ? 



Correlations. — Drawing: Draw a map of a farm or of the school 

 district, locating the poor soils, steep slopes, eroding soils, rocky 

 land, wet land, unused corners or waste land, and mark on this map 

 the names of the trees that grow on these places or that could be 

 profitably grown thereon. (Fig. 7.) 



Language : Write a report showing the advantages of using the 

 poor soils and waste lands for tree planting, giving examples from 

 the farms of the district if possible. 



