Relationship between Water and Carbon Utilization under Different Straw Mulching and Plant Density of Summer Maize in North China Plain

摘要：

　　To explore the relationship between water and carbon utilization and key factors to keep high water use efficiency(WUE),a 2-yr experiment was conduct by covering 0 and 0.6 kg m-2 straw to the surface of soil with plant densities of 1.0 × 105,7.5 × 104,and 5.5 × 104 plants ha-1 in North China Plain during summer maize growing seasons of the 2012 and 2013.Results showed that straw mulching not only increased grain yield(GY),WUE,and carbon efficient ratio(CER)but also inhibited CO2 emission significantly.WUE positively correlated with CER,GY and negative correlated with evapotranspiration(ET)and CO2 emission.CER had the larger direct effect on WUE compared with ET and CO2 emission.The results indicate that straw mulching management in summer maize growing seasons could make sense for inhibiting CO2 emission.

作者: Quanru Liu Shoujian Du Honglian Yin Juan Wang

作者单位: Department of Water Conservancy Engineering,Shandong Water Conservancy Vocational College,Rizhao,China

会议类型: 国际会议

会议名称: 2017 International Symposium on Application of Materials Science and Energy Materials (SAMSE 2017) (2017材料科学应用与能源材料国际研讨会)

会议地点: 上海

会议语种:英文

页码: 1-5

在线出版日期: 2017-12-28（万方平台首次上网日期，不代表论文的发表时间）