广西主要农作物秸秆资源估算及其空间分布

Estimation and Spatial Distribution of Main Crop Straw Resources in Guangxi

【目的】分析广西主要农作物秸秆资源量及其空间格局,挖掘广西主要农作物秸秆资源的开发潜力,为广西农作物秸秆资源的综合利用提供参考。【方法】采用草谷比法分析广西主要农作物秸秆资源量及其空间格局。【结果】广西主要农作物秸秆资源总量逐年增加,其中水稻、马铃薯和玉米秸秆是主要来源。2016年广西主要农作物秸秆理论资源量为2306.86万t,可收集资源量为1868.32万t,可能源化利用量为1588.07万t,可转化能源量可折算为733.16万t标准煤。水稻秸秆资源主要分布在南部和北部地区;玉米秸秆资源主要分布在北部和西南部地区;薯类秸秆资源主要分布在西北部和南部地区。【结论】广西主要农作物秸秆资源丰富,秸秆资源总量逐年平稳增加,水稻、薯类和玉米秸秆是主要来源,主要分布在西南和北部地区。

【Objective】To provide reference for the comprehensive utilization of crop straw resources in Guangxi,the development potential of the main crop straw resources in Guangxi was explored,the straw resources and spatial pattern of the main crops in Guangxi were analyzed.【Methods】The straw-grain ratio method was used to analyze the straw resources and spatial pattern of the main crops in Guangxi.【Result】The total amount of straw resources of main crops in Guangxi had increased year by year,among which rice,potato and corn stover were the main sources. In 2016,the theoretical resource of main crop straws in Guangxi was 23.0686 million tons,the collectable resources were 18.6832 million tons,the possible utilization amount was 15.8807 million tons,and the convertible energy was 7.3316 million tons of standard coal. The main crop straw resources in Guangxi were mainly distributed in the southwest and northern regions. The rice straw resources were mainly distributed in the southern and northern regions;the corn straw resources were mainly distributed in the northern and southwestern regions;the potato straw resources were mainly distributed in the northwest and the southern region.【Conclusion】The main crops in Guangxi are rich in straw resources,and the total amount of straw resources is increasing steadily year by year. Rice,potato and corn stover are the main sources of straw resources of main crops in Guangxi.