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楓凝月 asked in 科學化學 · 1 decade ago


Atmospheric nitrogen (N) pollution has caused severe alteration

and loss of habitats across the globe (Jefferies and

Maron, 1997; Vitousek et al., 1997). The most damaging effects

occur in typically nutrient-poor ecosystems where the additional

N can dramatically alter species composition, either

directly through toxic effects and competition for N, or indirectly

through enhanced levels of shading, herbivory and disease

(Van der Eerden et al., 1991; Jonasson, 1992; Press et al.,

1998; Strengbom et al., 2002; Pearce et al., 2003; Van der Wal

et al., 2003, 2005). N pollution can similarly impact ecosystem

function through influencing below-ground processes such as

nutrient cycling, and lead to the loss of carbon from deeper

soil layers (Zogg et al., 2000; Mack et al., 2004). Impacts

from unremittingly elevated N pollution rates can extend beyond

the directly affected plant-soil systems, and impinge on

ecosystem services such as provision of clean drinking water,

through enhanced concentrations of dissolved organic N and

carbon in drainage waters from habitats saturated by atmospheric

N inputs (Curtis et al., 2005). It is therefore vital

that effective methods are in place to monitor and analyse detrimental

impacts from atmospheric N pollution.

1 Answer

  • 戟柚
    Lv 5
    1 decade ago
    Favorite Answer


    大氣的氮 (N) 污染已經引起嚴重的變化。



    在典型營養-貧窮的生態系統中發生那另外的N 能戲劇性地也改變物種。

    直接地透過有毒的方式競爭為 N, 或間接地


    N 污染能同樣地影響生態系統功能影響下面的程序


    不停的提高的 N ,污染率會過高


    生態系統服務,像是乾淨飲用水的準備透過被溶解的有機 N 的可提高集中和。


    N 輸入而飽和。 因此重要的方法是適當地監視而且分析,

    從大氣的 N 有害的污染。


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