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- Title
Modeling of Effectiveness Assessment on N<sub>2</sub>O Emission Reduction in Farmland under Drip Irrigation and Fertilization.
- Authors
Weihan Wang
- Abstract
Drip irrigation and fertilization is the most effective water-saving irrigation method in arid areas of China, which has an important impact on mineralization and decomposition of organic matter in farmlands, nitrogen migration and transformation, affecting the production and emission of N2O. The effectiveness assessment model of N2O emission reduction in farmland under drip irrigation and fertilization is designed. The N2O gas is collected by automatic static chamber-gas chromatography, and the data of N2O gas are calculated and analyzed. On this basis, the assessment index system of N2O emission reduction effect of farmland under drip irrigation and fertilization is constructed. The system is composed of target layer, factor layer and index layer. Based on the index system, a fuzzy comprehensive assessment method is constructed. Combined with the N2O gas data calculation and analysis results, the N2O emission reduction effect of farmland under drip irrigation and fertilization is comprehensively evaluated. The results show that the appropriate management mode of drip irrigation and fertilization can reduce the intensity of N2O emission. The designed model can effectively assess the effect of N2O emission reduction in farmland under drip irrigation and fertilization, and has high assessment accuracy and time efficiency.
- Subjects
MICROIRRIGATION; EMISSIONS (Air pollution); PLANT fertilization; NITROGEN dioxide &; the environment
- Publication
Ekoloji Dergisi, 2019, Issue 107, p2161
- ISSN
1300-1361
- Publication type
Article