Stream geochemical response to reductions in acid deposition in headwater streams: Chronic versus episodic acidification recovery

2019 ◽  
Vol 33 (4) ◽  
pp. 512-526 ◽  
Author(s):  
Ami Riscassi ◽  
Todd Scanlon ◽  
James Galloway
Keyword(s):  
Acid Deposition ◽  
Headwater Streams ◽  
Episodic Acidification ◽  
Acidification Recovery

Episodic Acidification and Changes in Fish Diversity in Pennsylvania Headwater Streams

1997 ◽  
Vol 126 (6) ◽  
pp. 977-984 ◽  
Author(s):  
Robin M. Heard ◽  
William E. Sharpe ◽  
Robert F. Carline ◽  
William G. Kimmel
Keyword(s):  
Headwater Streams ◽  
Fish Diversity ◽  
Episodic Acidification

Effect of acid deposition on trichome morphology and dogwood anthracnose biology

1992 ◽  
Vol 50 (1) ◽  
pp. 840-841
Author(s):  
Kyle T. Thornham ◽  
R. Jay Stipes ◽  
Randolph L. Grayson
Keyword(s):  
Acid Deposition ◽  
Disease Incidence ◽  
Natural Populations ◽  
Tree Disease ◽  
Flowering Dogwood ◽  
Discula Destructiva ◽  
Disease Induction ◽  
Dogwood Anthracnose ◽  
Trichome Morphology ◽  
Precipitation Events

Dogwood anthracnose, caused by Discula destructiva (1), is another new catastrophic tree disease that has ravaged natural populations of the flowering dogwood (Cornus florida) in the Appalachians over the past 15 years, and the epidemic is prognosticated to continue (2). An estimated 9.5 million acres have been affected, primarily in the Appalachian Mountains, from VA southwards, alone, and an estimated 50% of all dogwoods in PA have been killed. Since acid deposition has been linked experimentally with disease induction, and since the disease incidence and severity are more pronounced at higher elevations where lower pH precipitation events occur, we investigated the effect of acidic foliar sprays on moiphologic changes in the foliar cuticle and trichomes (3), the initial sites of infection and foci of Discula sporulation.

Identifying Sources of Sulfate Aerosols Reaching Whiteface Mountain, NY

1985 ◽  
Vol 43 ◽  
pp. 98-101
Author(s):  
James S. Webber
Keyword(s):  
Trace Metals ◽  
Acid Deposition ◽  
Surface Waters ◽  
Dry Deposition ◽  
Coal Combustion ◽  
Public Awareness ◽  
Sulfate Aerosols ◽  
Wet And Dry Deposition ◽  
Whiteface Mountain ◽  
Toxic Trace Metals

INTRODUCTION“Acid rain” and “acid deposition” are terms no longer confined to the lexicon of atmospheric scientists and 1imnologists. Public awareness of and concern over this phenomenon, particularly as it affects acid-sensitive regions of North America, have increased dramatically in the last five years. Temperate ecosystems are suffering from decreased pH caused by acid deposition. Human health may be directly affected by respirable sulfates and by the increased solubility of toxic trace metals in acidified waters. Even man's monuments are deteriorating as airborne acids etch metal and stone features.Sulfates account for about two thirds of airborne acids with wet and dry deposition contributing equally to acids reaching surface waters or ground. The industrial Midwest is widely assumed to be the source of most sulfates reaching the acid-sensitive Northeast since S02 emitted as a byproduct of coal combustion in the Midwest dwarfs S02 emitted from all sources in the Northeast.

FLASHINESS OF HEADWATER STREAMS WITHIN THE CONTEXT OF SEASONAL CHANGES IN EVAPOTRANSPIRATION AND DIFFERING LAND USE

2018 ◽  
Author(s):  
Peter Whitehouse ◽  
◽  
Heather Mase ◽  
Forrest Parrott ◽  
Chris Paradise ◽  
...  
Keyword(s):  
Land Use ◽  
Seasonal Changes ◽  
Headwater Streams

Influence of leaf miners and environmental quality on litter breakdown in tropical headwater streams

Hydrobiologia ◽  
2021 ◽  
Vol 848 (6) ◽  
pp. 1311-1331
Author(s):  
Vivian de Mello Cionek ◽  
Fábio Nascimento Oliveira Fogaça ◽  
Timothy Peter Moulton ◽  
Laryssa Helena Ribeiro Pazianoto ◽  
Guilherme Okuda Landgraf ◽  
...  
Keyword(s):  
Environmental Quality ◽  
Headwater Streams ◽  
Litter Breakdown ◽  
Leaf Miners
Sign in / Sign up

Export Citation Format

Share Document