Effect of organic farming on emissions of carbon dioxide and nitrogen oxide in alkali saline soil

doi:10.3969/j.issn.1004-1524.2016.09.18

›› 2016, Vol. 28 ›› Issue (9): 1580-1587.DOI: 10.3969/j.issn.1004-1524.2016.09.18

• Environmental Science • Previous Articles Next Articles

Effect of organic farming on emissions of carbon dioxide and nitrogen oxide in alkali saline soil

WANG Hong-yan, SONG Bing-bing, NIE Ying, SUN Yan

College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China

Received:2016-01-29 Online:2016-09-15 Published:2016-11-23

Abstract

Abstract: In the present study, alkali saline soil in Daqing City, Heilongjiang Province was adopted as study objects to explore the effects of organic farming on greenhouse gases (N₂O, CO₂) emissions. By applying the method of IPCC (1992), it was shown that N₂O, CO₂ emissions in alkaline saline soil were reduced with organic farming compared with the conventional farming. With the prolonged time of organic cultivation of soybean and corn, greenhouse gas emissions were not significantly changed, and the overall warming potential was still lower than that of conventional farming. Besides, it was found that organic farming increased the content of soil microbial biomass carbon and nitrogen.

Key words: organic farming, greenhouse gas, emission flux, alkaline saline soil, warming potential

CLC Number:

S345

WANG Hong-yan, SONG Bing-bing, NIE Ying, SUN Yan. Effect of organic farming on emissions of carbon dioxide and nitrogen oxide in alkali saline soil[J]. , 2016, 28(9): 1580-1587.

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Effect of organic farming on emissions of carbon dioxide and nitrogen oxide in alkali saline soil

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