期刊论文

中文

中国农业科学

0578-1752

2006

39

5

968-975

10.3321/j.issn:0578-1752.2006.05.016

This paper is translated from its Chinese version in Scientia Agricultura Sinica. This work was part of the project supported by the National High Research and Development Program of China （NHRDP） （863-306-ZD05-3-E） and the project supported by Science and Technology Department of Hunan Province of China （00NK 1001）.

本校为第一机构

[目的]稻-鸭生态种养技术是中国传统农业的精华,研究其减排CH4的效果,为进一步开发利用这一经典农艺提供理论基础和实践依据.[方法]采用田间试验及经济学方法研究稻-鸭生态种养技术减排CH4的效果及经济效益.[结果]稻田CH4排放通量的日变化与气温日变化基本一致.稻田CH4排放通量的高峰值出现在晚稻分蘖盛期,免耕养鸭稻田、免耕不养鸭稻田和翻耕不养鸭稻田的CH4排放通量分别为24.1、32.2和40.5 mg·m-2·h^-1.在晚稻分蘖始-分蘖盛期,稻-鸭生态种养技术对稻田CH4排放的控制效果明显,分别比免耕不养鸭稻田、翻耕不养鸭稻田的CH4排放量减少2.333、4.723 g·m^-2.晚稻整个生育期间,免耕养鸭稻田CH4排放...

The rice-duck ecological system is one of the major practices of the traditional Chinese agriculture. A study on the effect of reducing methane emission using this practice provided theoretical and practical basis for further development and utilization of this classical agricultural technique. The effect of reducing methane emission and the economic benefits of rice-duck ecological system were studied by carrying out a field experiment and by using economic methodology. The daily variation of CH4 emission in late rice paddy field was basically...