Mitigating CH4 and N2O emissions from intensive rice production systems in northern Vietnam: Efficiency of drainage patterns in combination with rice residue incorporation
Greenhouse gas (GHG) mitigation strategies are often constrained by rice farmers’ preferences, therefore an assessment of mitigation strategies taking farmers’ constraints into consideration, are important for their pos- sible adoption. The field experiments were conducted for two continuous rice-gr...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Elsevier
2017
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| Online Access: | https://hdl.handle.net/10568/83473 |
| Summary: | Greenhouse gas (GHG) mitigation strategies are often constrained by rice farmers’ preferences, therefore an
assessment of mitigation strategies taking farmers’ constraints into consideration, are important for their pos- sible adoption. The field experiments were conducted for two continuous rice-growing seasons in northern Vietnam, to evaluate the effectiveness of drainage patterns on methane (CH4) and nitrous oxide (N2O) emissions under farmers’ variable conditions. Two improved drainage practices (pre-planting plus midseason [PM] drai- nage and early-season plus midseason [EM] drainage) were compared with local practices of water management (midseason drainage [M] and conventional continuous flooding (control) [C]) with full residue [F] and reduced residue [R] (local practice of residue management) incorporation. The GHG mitigation potential of water re- gimes was tested in two water management systems (efficient field water management [EWM] system and inefficient field water management [IWM] system). In EWM system, EM resulted an average 14% and 55% reduction in CH4 emissions |
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