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Assessing the burning of household dung-cake as an energy source in different rangeland regions of Inner Mongolia
Journal of Cleaner Production ( IF 11.1 ) Pub Date : 2021-01-07 , DOI: 10.1016/j.jclepro.2021.125827
Zhiyi Wang , Zhiying Liu , Taogetao Baoyin , Saheed Olaide Jimoh , Tongrui Zhang , Jianwei Cheng , Frank Yonghong Li

Burning of livestock dung as a fuel by herdsman households, representing one of the most critical determinants of biogeochemical cycle, has been a tradition for thousands of years in most rangeland regions worldwide. It has been suggested that returning livestock dung to pasture instead of burning them as fuel would benefit ecosystem health and carbon sequestration in rangelands. However, evidence-based studies on the driving factors of household dung-cake collection and burning in various rangeland regions are limited. Using a stratified random sampling approach, we did a household survey on the herders’ behaviors of dung-cake collection and burning, and investigated their relations with climate, availability of other energy sources, and household socioeconomic conditions, across the five rangeland regions in Inner Mongolia on August–November 2015. We found that the energy from dung-cake burning accounted for 34.90% of the total household energy consumption for cooking and heating, and it varied considerably across rangeland regions. The amount of dung-cake energy use in a household mainly depends on the length of cold period in a year (defined as the number of days with mean daily temperature below 5 °C), indicating dung-cake burning is a major and contingent way of heating in the long winter period in Inner Mongolia. Moreover, the reduction in the cold period but not availability of other energy sources can reduce the proportion of dung-cake energy in total household energy consumption. Reducing the quantity of dung collected and burnt by herders is promoted for both enhancing carbon sink capacity of rangeland ecosystems and improving indoor environmental quality of pastoral households. Our findings have important implications for understanding how ecological and socioeconomic factors affect household dung-cake use as fuel, and for developing low-carbon energy infrastructures and novel energy policies to facilitate the use of low-carbon energy sources for the benefit of carbon sequestration and environment.



中文翻译:

评估内蒙古不同草地地区的家用粪饼燃烧作为能源

牧民家庭焚烧牲畜粪便作为燃料,是生物地球化学循环的最关键决定因素之一,在全球大多数牧场地区已经有数千年的历史了。有人提出,将牲畜粪便放回牧场而不是燃烧它们作为燃料,将有益于牧场的生态系统健康和碳固存。但是,关于在各个牧场地区家庭粪便饼收集和燃烧的驱动因素的循证研究有限。我们采用分层随机抽样的方法,对牧民的粪便饼收集和燃烧行为进行了家庭调查,并调查了他们与气候,其他能源的可利用性以及家庭社会经济状况的关系,于2015年8月至11月在内蒙古五个草原地区分布。我们发现,粪饼燃烧产生的能量占家庭用于烹饪和取暖的能源总消耗的34.90%,并且在草原地区之间差异很大。家庭中的粪饼能量消耗量主要取决于一年中的寒冷时间长度(定义为平均日温度低于5°C的天数),这表明粪饼燃烧是主要的或偶然的方式内蒙古漫长的冬季采暖情况 而且,减少寒冷时期而不减少其他能源的使用可以减少粪便饼能源在家庭总能源消费中的比例。提倡减少牧民收集和燃烧的粪便数量,以增强牧场生态系统的碳汇能力和改善牧民家庭的室内环境质量。我们的发现对理解生态和社会经济因素如何影响家庭粪便作为燃料的使用,以及发展低碳能源基础设施和新的能源政策以促进低碳能源的利用,以有利于碳固存和发展具有重要意义。环境。

更新日期:2021-01-28
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