• 能源与碳排放 •

### 中国秸秆优质化能源开发利用特征及影响因素

1. 1. 常州大学环境与安全工程学院,常州 213164
2. 常州信息职业技术学院现代服务学院,常州 213164
• 收稿日期:2017-08-30 修回日期:2019-07-31 出版日期:2019-10-25 发布日期:2019-10-25
• 作者简介:王明新,男,福建莆田人,博士,教授,研究方向为资源与环境管理。E-mail: wmxcau@163.com
• 基金资助:
教育部人文社会科学研究规划基金项目(14YJAZH078);国家自然科学基金项目(41772240)

### Development and utilization characteristics and influencing factors of straw-based high quality energy in China

WANG Mingxin1,YE Qian1,WANG Di2

1. 1. College of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, China;
2. Modern Service School, Changzhou College of Information Technology, Changzhou 213164, China
• Received:2017-08-30 Revised:2019-07-31 Online:2019-10-25 Published:2019-10-25

Abstract:

In order to investigate the characteristics of China’s straw-based high quality energy development and utilization, this study calculated the straw-based high quality energy in China from 2009 to 2016, and analyzed its yearly changes, regional distribution, and structural characteristics. The straw-based high quality energy productivity per unit sown area was used to reflect the development and utilization level of straw-based high quality energy. The boosting regression tree method was used to analyze the influencing factors of provincial differences of straw-based high quality energy productivity, and the contribution percentages were calculated. The results show that the straw-based high quality energy productivity increased from 1.1963 million ton of coal equivalent (tce) in 2009 to 5.3443 million tce in 2014, and the annual growth rate was 34.9%. The biogas and straw pelletized fuel are the two dominant energy types. The bio-gasification rate decreased, mainly distributed in the midwest and three provinces in southern China. The percentage of pelletized fuel rapidly increased and currently mainly distributed in the eastern region and the three provinces in central China. The development and utilization level increased from 7.54 kg of coal equivalent (kgce) per hm 2 in 2009 to 32.30 kgce/hm 2 in 2014. The differences between the seven regions and intraregional differences among the provinces are relatively large, and on the whole have a tendency to expand. The boosting regression tree analysis results show that this method can better fit the relationship between the development and utilization level and its influencing factors. The contribution rate of supply factors, demand factors, and environmental factors to provincial differences of the development and utilization level of straw-based high quality energy were 37.10%, 35.60%, and 22.30%. The development and utilization level of straw-based high quality energy was positively related to the proportion of grain cropping area, per capita net income of rural residents, rural per capita consumption of energy, and financial investment and negatively related to per capita arable land and the areal proportion of tractor use, and showed a “V” type relationship with forage demand intensity. The per capita net income of rural residents and rural financial investment contributed most significantly to the development and utilization of straw-based high quality energy. The development & utilization of high-quality straw-based energy depends to a large extent on the improvement of rural economic development level and the promotion of administrative power. In the northwest, northeast and central China, financial and technology support should be strengthened to improve the development & utilization level of high-quality straw-based energy.