Environmental Performance Analysis of Rice Nitrogen Management in China

Ming Xin Wang; Xun Feng Xia; Yunyun Zhu; Bei Dou Xi

doi:10.4028/www.scientific.net/AMR.518-523.1156

Paper Titles

Ecological Risk of Heavy Metals Pollution in Sediments of Beijiang River
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Environment Carrying Capacity Evaluation of Coal Mining in Shanxi Province
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Environmental Benefits Analysis of Soil Testing and Formulated Fertilization Program in Linqing, China
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Environmental Impact Evaluation for Thermal Power Project Based on Combinational Weight and TOPSIS Method
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Environmental Performance Analysis of Rice Nitrogen Management in China
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Establishment and Application of BP Neural Network Prediction Model of Xinxue River Constructed Wetland, China Based on Data Expansion
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Establishment and Application of Water Quality Assessment Model for Jiaozhou Bay Basin
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Evaluation of Environmental Impacts of Traffic Management and Control Measures
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Measurement and Evaluation of Annual Daylighting Performance of an Exist School in Hot and Arid Regions of Iran
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Environmental Performance Analysis of Rice...

Environmental Performance Analysis of Rice Nitrogen Management in China

Abstract:

Rice had the largest sown area in China, so its nitrogen intensity had a significant impact on rural environment. The Surface Nitrogen Surplus and Nitrogen Productivity were defined and estimated for China’s rice production systems using statistical data collected from 1998 to 2009 at the national and provincial scale, and the temporal and spatial change of the two indicators was analyzed to evaluate the environmental performance of rice nitrogen management. The results showed that the environmental performance of rice nitrogen management in China was improved stably in the last more than ten years. The Surface Nitrogen Surplus of the indica rice in developed southern provinces is the largest, and was slightly less in the central region. However, the Surface Nitrogen Surplus of the japonica rice was much higher in North China Plain than in other dominated rice production region. The nitrogen intensity and its environmental burdens control should focus on the early and late indica rice production systems in South China and southwestern China, the medium indica rice production systems in Eastern China, and the japonica rice production system in North China.