Study on composition and utilization potential of waste from planting and breeding in Shanxi Province, China

• Main Authors: DU Yan-ling, ZHOU Huai-ping, CHENG Man, XIE Wen-yan, YANG Zhen-xing, GUO Jin, LÜ Qian-qian, WANG Zhi-wei
• Format: Article
• Language: zho
• Published: Agro-Environmental Protection Institute, Ministry of Agriculture 2019-05-01
• Series: Journal of Agricultural Resources and Environment
• Subjects: planting and breeding waste, Shanxi Province, change characteristic, spatial distribution, resource potential
• Online Access: http://www.aed.org.cn/nyzyyhjxb/html/2019/3/20190310.htm

In order to improve the utilization efficiency of the waste from planting and breeding, through reviewing literature and field survey we knew about the number and present situation of the utilization of the waste in Shanxi Province and assessed the characteristics of quantity and spatial distribution on regional scale. Besides, we used the investigation to analyze the potential on the resource utilization and comprehensive utilization efficient way. Results showed that there were large quantities of straws of wheat in the south of Shanxi Province, and in the other regions corn straws played the most important situation. Livestock poultry dung was mostly from cattle, pigs and sheep, and it distributed as most of sheep in the northwestern, cattle in this north center, and pigs in the southeast. During 2007-2015, the crops straw produced from 1.27×10⁷ t to 1.54×10⁷ t, and the dung output of livestock and poultry came from 1.82×10⁷ t to 2.02×10⁷ t, and it showed a relatively stabilized tendency in recent years. If the waste from planting and breeding was converted into fertilizer we could get organic matter, N, P, K, respectively 1.54×10⁷,1.25×10⁵, 5.28×10⁴, 1.04×10⁵ t, and if energy-oriented we could get 1.05×10⁷ t standard coal, or 4.59×10⁹ m³ biogas. Therefore, the waste was diverse and numerous in Shanxi Province, and it had its own spatial distribution in each area. Besides, it had greater potential of resource. We should try our best to convert waste into fertilizer, energy, feed and other utilization ways in order to achieve a high efficient, comprehensive and integrated utilization. Based on the study, scientific and feasible guidance for Shanxi Province was put forward to realize a more efficient and sustainable utilization of waste from planting and breeding.