Field experiments on greenhouse gas emissions and nitrogen and phosphorus losses from rice paddy with efficient irrigation and drainage management
Field experiments on greenhouse gas emissions and nitrogen and phosphorus losses from rice paddy with efficient irrigation and drainage management
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高效排灌稻田温室气体排放及氮磷损失田间试验
DOI：
10.1007/s11431-011-4310-7
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发表时间：
2011-04
期刊：
影响因子：
--
通讯作者：
Gao HuanZhi
中科院分区：
文献类型：
--
作者：
Peng ShiZhang;Yang ShiHong;Xu JunZeng;Gao HuanZhi
为揭示高效灌排对稻田生态环境的影响，基于田间试验数据，分析了高效灌排条件下稻田温室气体排放、氨挥发、淋溶和地表排水等氮磷损失。结果表明，与漫灌相比，控制灌溉稻田甲烷排放总量减少80%以上，氧化亚氮排放总量增加15.9%。控制灌溉条件下稻田甲烷和氧化亚氮的季节综合全球变暖潜势（GWP）为62.23 gCO 2 m − 2，比漫灌降低68.0%。与传统排灌相比，由于渗漏量和地表排水量大幅减少，稻田氮磷淋溶损失分别减少40.1%和54.8%，地表排水氮磷流失分别减少53.9%和51.6%。氨挥发损失减少14.0%。有效的灌溉和排水管理有助于减少温室气体排放、氮磷流失及其对地下水和地表水的污染。
Greenhouse gas emissions, nitrogen and phosphorous losses through ammonia volatilization, leaching and surface drainage from rice paddy under efficient irrigation and drainage were analyzed based on field experimental data in order to reveal the eco-environmental impacts of efficient irrigation and drainage on rice paddy. The results showed that total methane emission from rice paddy under the controlled irrigation was reduced by more than 80% and total nitrous oxide emission increased by 15.9% compared with flooding irrigation. Seasonal comprehensive global warming potentials (GWP) of methane and nitrous oxide were 62.23 gCO2m−2for rice paddy under the controlled irrigation, reduced by 68.0% compared with flooding irrigation. Due to large reduction in seepage and surface drainages, nitrogen and phosphorous losses through leaching were reduced by 40.1% and 54.8%, nitrogen and phosphorous losses through surface drainage were reduced by 53.9% and 51.6% from rice paddy under efficient irrigation and drainage compared with traditional irrigation and drainage. Nitrogen loss through ammonia volatilization was reduced by 14.0%. Efficient irrigation and drainage management is helpful to mitigate greenhouse gases emission, nitrogen and phosphorus losses and their pollution on groundwater and surface water.
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DOI：
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发表时间：
2004
期刊：
Advances in Water Science
影响因子：
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作者：
Huo Ke-lin
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DOI：
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2004
期刊：
Advances in Water Science
影响因子：
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DOI：
10.1073/pnas.0813417106
发表时间：
2009-03-03
影响因子：
11.1
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