Vlll CONTENTS 



CHAPTER II 

 4 THE CHOICE OF SPECIES IN ARTIFICIAL REGENERATION 



ARTICLE PAGE 



1. Experimental Seeding and Planting 16 



2. Seeding and Planting to Realize the Object in View 17 



3. The Use of Exotics and Species from Remote Regions 17 



4. Factors upon which the Choice of Species Depends 19 



5. Correlation between Site Factors and Silvical Requirements. ... 20 



6. The Site Factors 21 



7. The Effect of Atmospheric Factors on the Choice of Species. 21 



8. Variation in Heat Requirements within the Species 22 



9. Light in its Relation to the Choice of Species 23 



10. Conditions under which Light Influences the Choice 



of Species 24 



11. The Indirect Influence of Light on the Choice of 



Species 24 



12. Humidity in its Relation to the Choice of Species 25 



13. Precipitation in its Relation to the Choice of Species 26 



14. The Mechanical Effect of Snow in its Relation to the 



Choice of Species 28 



15. Wind in its Relation to the Choice of Species 29 



16. Minor Atmospheric Factors in their Relation to the 



Choice of Species . 30 



17. The Effect of Soil Factors on the Choice of Species 31 



18. Water Content in its Relation to the Choice of Species. . . 32 



19. Sites with Non-available Moisture 32 



20. Optimum Development and Available Moisture 33 



21. Judging the Amount of Soil Moisture 34 



22. Available Moisture in the Surface Soil 34 



23. The Composition of the Soil in Relation to the Choice of 



Species 35 



24. Humus in its Effect upon the Choice of Species 35 



25. The Physical Condition of the Soil in Relation to the 



Choice of Species 36 



26. Species Selected with Reference to their Demands upon Soil 



Fertility 36 



27. Other Factors of the Site which Influence the Choice of 



Species 37 



28. Fire 37 



29. Insects 37 



30. Fungi 38 



31. Grazing 38 



32. Lands Subject to Overflow , 38 



