SOILS IN GLOBAL FREEZING-THAWING AREAS AS THE MAJOR N2O-RELEASING SOURCE
Received date: 1994-06-06
Revised date: 1995-01-03
Online published: 1995-06-01
N2O is one of the important greenhouse gases, and is an intermediate product of nitrification and denitrification. There are a variety of N2O-releasing sources, of which the pedosphere is one of the important N2O-releasing sources. Temperature is one of key factors affecting N2O-releasing flux.
On the basis of enhancing mineralization of organic matter, and inducing non-biological stress on microorganic population as a result of soil freezing-thawing, it is summarized that global freezing-thawing soils are the important N2O-releasing sources in consideration of the characteristics of freezing-thawing soils and wetland in tundra.
Key words： Soil freezing-thawing; Nitrification; Denitrification; Nitrous oxide; Tundra.
Piao Hechun, Liu Guangshen,Hong Yetang . SOILS IN GLOBAL FREEZING-THAWING AREAS AS THE MAJOR N2O-RELEASING SOURCE[J]. Advances in Earth Science, 1995 , 10(3) : 283 -288 . DOI: 10.11867/j.issn.1001-8166.1995.03.0283
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