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It seems to have been affected by air pollution and soil acidification in some parts of England.
Acid rain and soil acidification are some of the primary contributing factors to maple decline.
The Dutch government says a third of the country's trees are dying because of drought and soil acidification.
Soil acidification has an impact on of soil biodiversity.
Certain parent materials also contribute to soil acidification.
In rural areas, maple decline is often attributed to soil acidification caused by acid rain.
Nitrogen-containing inorganic and organic fertilizers can cause soil acidification when added.
It is also important from a Hungarian perspective that, as many of us have proposed, the legislation should also deal with tackling soil acidification.
Stability of the system is reduced by the use of nitrogen-containing fertilizers, which cause soil acidification.
Dry deposition of sulphur dioxide may, says a DoE review, also 'cause rapid surface soil acidification (over months rather than years)'.
Soil acidification is the buildup of hydrogen cations, also called protons, reducing the soil pH.
Status of soil acidification in North America Journal of Forest Science 52:3-13.
There was, however, 'increasing concern [in Europe]about the role of soil acidification'(it was not mentioned that this has been caused by air pollution).
Environmental concerns regarding ammonia include its causes of eutrophcation, soil acidification, fertilization of vegetation, and changes in the ecosystem.
This can happen if it is incorrectly stored, if it is allowed to contaminate water resources, or in the case of soil acidification.
These crops also help reduce soil acidification, improve its structure, reduce the use of herbicides and encourage greater biodiversity, assisting pollination.
However, by 7700 B.P. Calluna heaths expanded, presumably as a result of soil acidification and podsolisation.
Poor-quality eggshells indicate insufficient deposition of calcium and this deficiency was shown to have arisen because of increased soil acidification.
A study has suggested that low Calcium causes soil acidification and increased toxicity caused by metallic elements such as Aluminium may be causing the dieback.
Their natural coniferous forests were also in large parts replaced by spruce mono cultures, which are often heavily damaged due to air pollution and soil acidification.
Soil acidification is accelerated by the use of acid-forming nitrogenous fertilizers and by the effects of acid precipitation.
The loss of dogwoods from lower elevation forests could have a damaging effect on soil acidification, nutrient availability and numerous ecological relationships, Dr. Jenkins wrote.
He accepted that evidence of deep soil acidification and the discovery of a large soil reservoir of sulphate meant pollution had caused wholesale ecological change.
Independent scientist Lee Klinger believes soil acidification is among the leading factors contributing to sudden oak death, by altering mineral balance and reducing availability of nutrients.
NO and NH inputs from terrestrial systems and the atmosphere can acidify freshwater systems when there is little buffering capacity due to soil acidification.