免耕稻-鸭复合系统减少甲烷排放及其机理研究

Abstract

Abstract: Based on mutualistic symbiosis of rice and duck,plus the technique of no-tillage,a new no-tillage rice-duck complex system was formed.In order to provide a scientific and theoretic foundation for ecological assessment,experiments were carried out to determine effects of the new system on CH₄ emission and its mechanism.Results show that the no-tillage rice-duck complex system combined the benefits of no-tillage and raising ducks in rice field.It decreased CH₄ emission greatly as a result of increased dissolved oxygen by duck activities and changes in soil physical properties and redox conditions related to adoption of no-tillage,which helped CH₄ oxidation.

Key words: no-tillage, rice-duck complex system, CH₄, emission

CLC Number:

S154

GAN De-Xin, HUANG Huang, JIANG Ting-Jie, HUANG Mei. Decrease in CH4 emission and its mechanism in no-tillage rice-duck complex system[J]. Journal of Ecology and Rural Environment, 2005, 21(2): 1-6.

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Decrease in CH4 emission and its mechanism in no-tillage rice-duck complex system

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