稻鸭共作对稻田水体环境的影响

应用生态学报

稻鸭共作对稻田水体环境的影响

全国明^1,2;章家恩¹;陈瑞¹;许荣宝¹

¹华南农业大学热带亚热带生态研究所，广州 510642；²广州城市职业学院生物与环境工程系，广州 510405

收稿日期:2008-01-06 修回日期:1900-01-01 出版日期:2008-09-20 发布日期:2008-09-20

Effects of rice-duck farming on paddy field water environment.

QUAN Guo-ming^1,2;ZHANG Jia-en¹;CHEN Rui¹;XU Rong-bao¹

¹Institute of Tropical and Subtropical Ecology, South China Agricultura
l University, Guangzhou 510642, China;²Department of Biology and Environm
ental Engineering, Guangzhou City Polytechnic, Guangzhou 510405, China

Received:2008-01-06 Revised:1900-01-01 Online:2008-09-20 Published:2008-09-20

摘要/Abstract

摘要： 通过田间对比试验，研究了稻鸭共作技术对稻田水体环境性质的影响.结果表明：稻鸭共作能够降低稻田表层水体的温度与pH值，提高电导率、氧化还原电位、混浊度和总氮、总磷、总钾三大营养元素的含量，其中总氮、总磷、总钾的含量分别比常规稻作增加1.85～5.06倍、2.01～8.70倍和42.79%～109.18%.说明稻鸭共作对改善水体理化性质、提高有效肥力供应，进而优化稻田生态环境和促进水稻的生长发育均具有积极作用.

关键词: 红松阔叶混交林, 活立木, 树干根部腐朽, 立地条件, 土壤理化特性, 小兴安岭

Abstract: Field experiment was conducted to investigate the effects of riceduck farming on the water environment in paddy field. The results showed that under rice-duck farming, the temperature and pH value of the surface water in paddy field decreased, and the electrical conductivity, oxidationreduction potential, turbidity, and the contents of nitrogen (N), phosphorus (P) and potassium (K) increased. The total N, P, and K increased by 1.85-5.06 times, 2.01-8.70 times, and 42.79%-109.18%, respectively, as compared to those in conventional rice farming. All of these illustrated that rice-duck farming improved the paddy field water environment and nutrient supply, optimized the ecological environment of paddy field, and promoted the growth and development of rice.

Key words: Korean pine-broadleaved mixed forest, standing tree, decay of the trunk near root, site condition, soil physical-chemical properties, Xiao Xing’an Mountains.

全国明^1,2;章家恩¹;陈瑞¹;许荣宝¹. 稻鸭共作对稻田水体环境的影响[J]. 应用生态学报.

QUAN Guo-ming^1,2;ZHANG Jia-en¹;CHEN Rui¹;XU Rong-bao¹. Effects of rice-duck farming on paddy field water environment. [J]. Chinese Journal of Applied Ecology.

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