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Author: Northeastern Forest Experiment Station (Radnor, Pa.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 260
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Book Description
Author: Northeastern Forest Experiment Station (Radnor, Pa.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 260
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Book Description
Author: P. H. Cochran
Publisher:
ISBN:
Category : Forest regeneration
Languages : en
Pages : 20
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Book Description
A sequence of events is necessary for natural regeneration in the pumice soil region: Adequate seed must be probed and distributed over the area, germination must be favored by warm and moist surface soils, daily surface temperature variation must be moderate, seedlings must survive summer drought, and weather conditions must prevent severe frost heaving the fall after germination and the next spring. This sequence does not always occur within a reasonable time after cutting, and natural regeneration is often delayed. Four possibilities are open to the land manager: (1) declare as noncommercial some severe sites such as lodgepole pine/needlegrass and lodgepole pine/bitterbrush/needlegrass plant communities on flat or basin topography; (2) depend more on a planting program; (3) leave a light slash cover on the surface after shelterwood or narrow strip cutting; and (4) leave a shelterwood on the area after a more thorough slash treatment and be willing to wait much longer than 5 years for natural regeneration. Some problems now exist in obtaining good lodgepole planting stock. Also the slash cover does not guarantee success of natural regeneration and option 3 might turn into option 4.
Author: Clara Catherine Prince
Publisher:
ISBN:
Category : Poetry
Languages : en
Pages : 1220
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Book Description
Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 516
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Book Description
Author: Northeastern Forest Experiment Station (Radnor, Pa.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 38
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Book Description
Author: James Desborough
Publisher: Lulu.com
ISBN: 0244396639
Category : Games & Activities
Languages : en
Pages : 242
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Book Description
Machinations of the Space Princess is a Science-Fantasy role-playing game. That means it's very much about style over substance, mixing science-fiction, magic and psionics in a game world that owes much more to Metal Hurlant and Star Wars than it does to 2001 or Bova's Grand Tour. This is a game of strangeness and fun, of space pirates and beautiful alien princesses, of living planets and robot hordes, of blasters at noon. This is... Sexy, sleazy, swords and sci-fi! A full game combining old and new school thinking, packed with GM and player advice and with simple tools for creating your own monsters, adversaries, weapons, armour, ships and alien races.
Author: Wayne T. Swank
Publisher: OUP Us
ISBN: 0195370155
Category : Business & Economics
Languages : en
Pages : 274
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Book Description
A long-term study of the effects of clearcutting on forest and stream ecosystems.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 552
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 560
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Author: Wilbur R. Maki
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 372
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Book Description
