Long-term recovery dynamics following hurricane-related wind disturbance in a southern Appalachian forest

2021 ◽  
Vol 502 ◽  
pp. 119704
Author(s):  
Cathryn H. Greenberg
2017 ◽  
Vol 399 ◽  
pp. 197-205 ◽  
Author(s):  
Peter Jaloviar ◽  
Milan Saniga ◽  
Stanislav Kucbel ◽  
Ján Pittner ◽  
Jaroslav Vencurik ◽  
...  

1985 ◽  
Vol 9 (3) ◽  
pp. 191-196 ◽  
Author(s):  
Lino Della-Bianca ◽  
Donald E. Beck

Abstract A woodland tract of southern Appalachian cove hardwoods and mixed oak has been managed under the selection system of silviculture since 1946. Simply cutting in all commercial diameter classes (i.e., 6.0 inches and larger), as was the practice during the first 24 years, failed to develop enough desirable saplings and poles to maintain the system. After 1970, herbicide treatment of undesirable, tolerant understory species in openings created by removal of large trees or groups of trees has improved the status of desirable saplings. Although long-term costs of management and yields are uncertain, the study suggests that creation of larger openings and treatment of undesirable understory species offers at least a chance for success with the selection system in southern Appalachian hardwoods.


1959 ◽  
Vol 40 (7) ◽  
pp. 352-359 ◽  
Author(s):  
R. R. Dickson

The variation of certain climatic elements with elevation is examined for Tennessee-North Carolina portions of the Southern Appalachian region. Regression equations relating elevation to annual, January, and July mean temperatures and mean daily temperature ranges and to length of growing season are derived. Early growing-season data for 15 mountain-valley systems in western North Carolina are examined and regression lines developed relating length of growing season to elevation for valley and summit locations. These regression lines adjusted for departure of early data from long-term averages appear applicable to recent long-term data and present a useful means of refining the growing season-elevation relationship. Although a satisfactory precipitation-elevation relationship is unattainable due presumably to slope and exposure effects, an estimate is given of the mean annual snowfall-elevation relationship. Graphs are presented showing the variation of potential evapotranspiration with elevation based on computations for selected locations from 1075 ft to 6684 ft; results are believed representative of the entire area under consideration.


2019 ◽  
Vol 15 (2) ◽  
pp. 133-141 ◽  
Author(s):  
Junko Morimoto ◽  
Toshihiro Umebayashi ◽  
Satoshi N. Suzuki ◽  
Toshiaki Owari ◽  
Naoyuki Nishimura ◽  
...  

Fire ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 20
Author(s):  
Christopher J. Dukes ◽  
T. Adam Coates ◽  
Donald L. Hagan ◽  
W. Michael Aust ◽  
Thomas A. Waldrop ◽  
...  

From 2001–2018, a series of fuel reduction and ecosystem restoration treatments were implemented in the southern Appalachian Mountains near Asheville, North Carolina, USA. Treatments consisted of prescribed fire (four burns), mechanical cutting of understory shrubs and mid-story trees (two cuttings), and a combination of both cutting and prescribed fire (two cuts + four burns). Soils were sampled in 2018 to determine potential treatment impacts for O horizon and mineral soil (0–10 cm depth) carbon (C) and nitrogen (N) and mineral soil calcium (Ca), magnesium (Mg), phosphorus (P), potassium (K), and pH. Results suggested that mean changes in O horizon C and N and mineral soil C, N, C:N, Ca, and P from 2001–2018 differed between the treatments, but only mineral soil C, N, C:N, and Ca displayed differences between at least one fuel reduction treatment and the untreated control. One soils-related restoration objective was mineral soil N reduction and the cut + burn treatment best achieved this result. Increased organic matter recalcitrance was another priority, but this was not obtained with any treatment. When paired with previously reported fuels and vegetation results from this site, it appeared that continued use of the cut + burn treatment may best achieve long-term management objectives for this site and other locations being managed for similar long-term restoration and fuels management objectives.


2010 ◽  
Vol 49 (8) ◽  
pp. 1597-1603 ◽  
Author(s):  
Robert J. Warren ◽  
Mark A. Bradford

Abstract The North Atlantic Oscillation (NAO) is a large-scale climate teleconnection that coincides with worldwide changes in weather. Its impacts have been documented at large scales, particularly in Europe, but not as much at regional scales. Furthermore, despite documented impacts on ecological dynamics in Europe, the NAO’s influence on North American biota has been somewhat overlooked. This paper examines long-term temperature and precipitation trends in the southern Appalachian Mountain region—a region well known for its biotic diversity, particularly in salamander species—and examines the connections between these trends and NAO cycles. To connect the NAO phase shifts with southern Appalachian ecology, trends in stream salamander abundance are also examined as a function of the NAO index. The results reported here indicate no substantial long-term warming or precipitation trends in the southern Appalachians and suggest a strong relationship between cool season (November–April) temperature and precipitation and the NAO. More importantly, trends in stream salamander abundance are best explained by variation in the NAO as salamanders are most plentiful during the warmer, wetter phases.


2014 ◽  
Vol 2014 (1) ◽  
pp. 2260-2272 ◽  
Author(s):  
Abner P. Barnuevo ◽  
Resurreccion B. Sadaba

ABSTRACT On August 11, 2006 more than 2 million liters of Bunker C oil spilled in southern Guimaras Island, central Philippines. Over 200 kilometers of coastline have been affected including the traditional livelihood in the island. The immediate effects involved death of marine fauna and massive mortality of mangroves which accounted to almost one hectare and two years after the incident some albino propagules of Rhizophora stylosa were observed. Additionally, some species of mangroves found in heavily impacted sites exhibited significant reduction of leaf sizes. Monitoring of the deforested mangrove areas three years after the incident showed a varying recruitment-to-mortality ratio. Recruitment and settlement of seedlings was impaired in areas where dead trees are extracted mainly for firewood purposes. The harvesting of dead trees created a forest gap, exposed the area to surging waves and thus increased the hydrodynamics. On the other hand, faster recovery dynamics was observed in area where the dead trees are not harvested. The presence of logs trapped the available propagules and facilitated the colonization of new cohorts. Quantification of polyaromatic hydrocarbons (PAHs) in mangrove sediments showed higher rate of decomposition. Three years after the oil spill, the level of PAHs in sampled sites were within the safe level based on the National Oceanic and Atmospheric Administration (NOAA) standards. However, sub-lethal, long term monitoring should be carried out further to focus on the species-specific long term responses.


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