Integrated benefits of paddy rice-duck complex ecosystem.
Author(s): WANG Hua, HUANG Zuo, YANG Zhihui, LIAO Xiaolan
Pages: 23-26,44
Year: 2003 Issue: 4
Journal: Rural Eco-Environment
Keyword: paddy; rice-duck complex ecosystem; methane emission; soil fertility; economic benefit;
Abstract: Integrated benefits of rice-duck complex ecosystem,including reduction of methane emission and other eco-economic benefits,were studied by adopting plot experiments.The results showed that compared with conventional paddy fields,the pattern of rice-duck ecological planting and breeding significantly reduced the total amount of methane emission from paddy fields,by 44.2% for early rice and 40.7% for late rice.Methane emission was higher from late rice fields than from early rice fields,in all treatments.At the same time,soil fertility and physical characteristics of the soil in the rice-duck complex ecosystem were both improved,and redox status of the soil was also markedly meliorated.What′s more,the direct economic benefit of the rice-duck complex ecosystem was higher than that of the conventional paddy fields.
Pages: 23-26,44
Year: 2003 Issue: 4
Journal: Rural Eco-Environment
Keyword: paddy; rice-duck complex ecosystem; methane emission; soil fertility; economic benefit;
Abstract: Integrated benefits of rice-duck complex ecosystem,including reduction of methane emission and other eco-economic benefits,were studied by adopting plot experiments.The results showed that compared with conventional paddy fields,the pattern of rice-duck ecological planting and breeding significantly reduced the total amount of methane emission from paddy fields,by 44.2% for early rice and 40.7% for late rice.Methane emission was higher from late rice fields than from early rice fields,in all treatments.At the same time,soil fertility and physical characteristics of the soil in the rice-duck complex ecosystem were both improved,and redox status of the soil was also markedly meliorated.What′s more,the direct economic benefit of the rice-duck complex ecosystem was higher than that of the conventional paddy fields.
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