192 



FORESTRY IN THE LANDES 



With the new 4-year tapping cycle a working plan for a maritime pine 

 forest having a 68-year rotation and 17 periods would normally be worked 

 as follows : 



TABLE 20.— WORKING PLAN FOR A MARITIME PINE FOREST 



Data furnished by Conservateur de Lapasse, April 7, 1920. Key to abbreviations 

 used in above table : 



R — Regeneration fellings, by clear cutting after tapping to death during 4 years. 

 The felling takes place at the end of the fourth year (winter up to January) of the period 

 and during the first year (winter after January) of the next period. 



Gg — 1. Exhaustive general tapping (gemmage-epuisement general) during the period 

 that precedes regeneration. All trees receive at least one face. 2. Continued tapping 

 ahve. 



G2 — 1. Exhaustive tapping during the period which precedes Gg. All trees 10 

 inches and over in diameter are given one face. 2. Continued tapping alive. 



G3 — 1. Moderate exhaustive tapping during the period which precedes G2. All 

 trees 11 inches and over in diameter are given one face. 2. Continued tapping alive. 



ge — 1. Rapid exhaustive tapping or tapping to death of all excess trees which must 

 be quickly removed by thinnings. 2. Slow exhaustive tapping of trees which will be 

 gradually removed in thinnings. 3. Tapping alive with one face of all trees at least 

 12 inches in diameter. Also the felling of damaged trees at the end of the fourth year 

 of the period and during the first part of the first year of the next period. 



" — No cultural operations. 



e — Cultural operations without tapping. 1. In the young stands beginning with 

 about 5 years: freeing of seedlings and clearing of brush heather. 2. In stands 10 to 

 20 years old: " depressages," and thinnings with gradual pruning of lower branches up 

 to a height of 11.5 feet on the bole. The foregoing system (which slightly modifies the 

 past procedure in state forests as can be seen from the text) is now (1920) to be standard 

 for all forests under public forest management. 



