Pamphlets on Forest Economics, Volume 61920 - Economics |
From inside the book
Results 1-5 of 31
Page 109
... after denudation ... 7 Broader relations between the two periods of the experi- Initial work and dam construction ... period___ . Analysis of the summer stream flow .. Low stages in summer .. Summer rains .. The fall and winter storage ...
... after denudation ... 7 Broader relations between the two periods of the experi- Initial work and dam construction ... period___ . Analysis of the summer stream flow .. Low stages in summer .. Summer rains .. The fall and winter storage ...
Page 110
... after denudation , expressed in inches .. 39. Maximum 24 - hour ... periods . 56. Cresting of the floods in the two periods . - .57 . Partial and total flood ... period of uncertain melting ... FIG . 11. Aspen on lower portion of east ...
... after denudation , expressed in inches .. 39. Maximum 24 - hour ... periods . 56. Cresting of the floods in the two periods . - .57 . Partial and total flood ... period of uncertain melting ... FIG . 11. Aspen on lower portion of east ...
Page 2
... periods , although it will be recognized that the full effects of denudation could not be felt during the year 1919-20 . Since denuding the one watershed , the records have been continued in the same manner for seven full years , or ...
... periods , although it will be recognized that the full effects of denudation could not be felt during the year 1919-20 . Since denuding the one watershed , the records have been continued in the same manner for seven full years , or ...
Page 18
... period 1911- 1926 may be characterized as moderately cool and wet , the ... denudation of B that watershed was at all times the warmer of the two , as ... Post denudation period : 1919-20 .. 1920-21 1921-22 . 1922-23 . 1923-24 . 1924-25 ...
... period 1911- 1926 may be characterized as moderately cool and wet , the ... denudation of B that watershed was at all times the warmer of the two , as ... Post denudation period : 1919-20 .. 1920-21 1921-22 . 1922-23 . 1923-24 . 1924-25 ...
Page 19
... Post denudation period : 1919-20 .. 1920-21 .. 1921-22 .. 1922-23 1923-24 . 1924-25 1925-26 . General average .. Predenudation average .. Post denudation average .. 30. 7 25. 2 38. 0 44. 1 55. 6 64. 6 63. 9 65. 5 58. 6 45.5 30.7 20. 8 ...
... Post denudation period : 1919-20 .. 1920-21 .. 1921-22 .. 1922-23 1923-24 . 1924-25 1925-26 . General average .. Predenudation average .. Post denudation average .. 30. 7 25. 2 38. 0 44. 1 55. 6 64. 6 63. 9 65. 5 58. 6 45.5 30.7 20. 8 ...
Common terms and phrases
Agriculture amount annual aspen basin billion board feet billion feet cent Coast Redwood cost crest crop cubic feet denudation depletion discharge Douglas fir effect estimated evaporation excess farm February figures flood forest counties forest land Forest Service forest taxation forestry Fred Rogers Fairchild Giant Sequoias grades Group hardwood inches increase July June Lake less logging Louis County lumber cut lumber industry lumber prices manufacture March markets material mean melting million acres mills Minnesota months National Forests National Parks newsprint north slope October operating owners postdenudation period precipitation Predenudation period present production quantities rain Red River Valley Redwood saw timber second growth second period Singletax snow softwood South southern pine species stream flow stumpage summer supply Table timberland tion trees United Valley Counties virgin timber Wagon Wheel Gap watershed weir western white pine white pine Winona County winter yellow pine