The forests of the United States

Gannett, Henry

doi:10.5962/bhl.title.46340

Cited by 6 publications

(7 citation statements)

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“…One or two of these predictions have by accident hit very near the truth, as made known by later censuses, but all have been finally wide of the mark" [15]. Moreover these estimates were all wide of the mark because they assumed a much larger increase in population than actually took place.…”

Section: Early Forecastsmentioning

confidence: 94%

Pitfalls in Population Forecasts and Projections

Dorn¹

1950

Journal of the American Statistical Association

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Section: Early Forecastsmentioning

confidence: 94%

Pitfalls in Population Forecasts and Projections

Dorn¹

1950

Journal of the American Statistical Association

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“…Therefore, for the historical condition along nonfloodplain channels, we assumed mature dense conifer stands with a site potential tree height of 52 m. This height is based on growth trajectories in McArdle et al (1930), descriptions found in Gannett (1899), and the average tree height at six present-day old-growth sites in the Stillaguamish River Basin (48 m; M. Pollock, unpublished data, 1998). For mixed forests along floodplain channels, we used a typical tree height for mature hardwoods of 30.5 m. The value is meant to JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION represent an approximate weighted average of red alder (~30 m), black cottonwood (~40 m), and willow (~6 m).…”

Section: Reference Condition For Riparian Analysismentioning

confidence: 99%

Historical and Future Stream Temperature Change Predicted by a Lidar‐Based Assessment of Riparian Condition and Channel Width

Seixas

Beechie

Fogel

et al. 2018

J American Water Resour Assoc

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Riparian forests attenuate solar radiation, thereby mediating an important component of the thermal budget of streams. Here, we investigate the relationship between riparian degradation, stream temperature, and channel width in the Chehalis River Basin, Washington State. We used lidar data to measure canopy opening angle, the angle formed between the channel center and trees on both banks; we assumed historical tree heights and calculated the change in canopy angle relative to historical conditions. We then developed an empirical relationship between canopy angle and water temperature using existing data, and simulated temperatures between 2002 and 2080 by combining a tree growth model with climate change scenarios from the NorWeST regional prediction. The greatest change between historical and current conditions (~7°C) occurred in developed portions of the river network, with the highest values of change predicted at channel widths less than ~40 m. Tree growth lessened climate change increases in maximum temperature and the length of river exceeding biologically critical thresholds by ~50%–60%. Moreover, the maximum temperature of channels with bankfull widths less than ~50 m remained similar to current conditions, despite climate change increases. Our findings are consistent with a possible role for the riparian landscape in explaining the low sensitivity of stream temperatures to air temperatures observed in some small mountain streams.

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“…Situated in the Chihuahuan Desert, the Sierra Vieja (also referred to as the Tierra Vieja, Vieja Mountains: Gannett 1904; Sierra Vieja Range: Jameson and Flury 1949, Philips and Thornton 1949; Sierra Tierra Viejas: York 1949) is a low-elevation mountain range (1500–1900 m) located north and east of the Rio Grande in western Jeff Davis and Presidio counties, Texas, USA that is approximately 65 km in length and primarily composed of igneous rock (York 1949). The Sierra Vieja serve as an important barrier between the Rio Grande Plain to the west and the Valentine Plain to the east, with its steep, incised canyons providing protection and habitat in an otherwise open terrain.…”

Section: Introductionmentioning

confidence: 99%

Amphibians and reptiles of C. E. Miller Ranch and the Sierra Vieja, Chihuahuan Desert, Texas, USA

Davis

LaDuc

2018

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We report the occurrence of 50 species of amphibians and reptiles recently collected on C. E. Miller Ranch and the Sierra Vieja in the Chihuahuan Desert of Texas, USA and describe their perceived distribution and abundance across various habitat associations of the region. Our recent surveys follow intense, historic sampling of amphibians and reptiles from this region in 1948. Of the 50 species detected in recent surveys, six were not collected in 1948 and an additional three species documented in 1948 have yet to be detected in a 14-year period of recent surveys. Combining data from both historic and recent surveys, a total of 53 species of amphibians and reptiles are known from the ranch (11 amphibians, 42 reptiles). Land stewardship and conservation practices have likely contributed to the persistence of the majority of these species through time. Additionally, we discuss the status of amphibians and reptiles not collected during recent surveys and comment on potential species that have not yet been detected.

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The forests of the United States

Abstract: The area of woodland has been obtained from the census of 1880. Sq. milea. Total land area 9 Q05 Woodland in farms 2 000 Woodland not in farms 3 200 Total woodland 5 200 Percentage of land area, 58. VERMONT.The area of woodland has been obtained from the census of 1880.Sq. miles.

Cited by 6 publications

References 0 publications

Pitfalls in Population Forecasts and Projections

Pitfalls in Population Forecasts and Projections

Historical and Future Stream Temperature Change Predicted by a Lidar‐Based Assessment of Riparian Condition and Channel Width

Amphibians and reptiles of C. E. Miller Ranch and the Sierra Vieja, Chihuahuan Desert, Texas, USA

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