黄土高原阶地区下丁家村生活能源结构优化研究

The Optimization of Structural Schemes of Daily-use Energies in Xiajingjia Village in the Terrance Area on the Loess Plateau

本文提出的下丁家村3种生活能源结构优化方案,与现状结构相比,薪炭林起主导作用且比重有所提高;沼气能和太阳能的利用数十倍地增加;秸杆直接用作燃料的比例由31.6％降至13％;能耗成本降低24.93％～41.17%;全村纯收入增加13％以上。3种优化方案均可变原来的单一结构为多能互补的多维结构,均具有明显的经济效益和生态效益。

Three kinds of the optimum schemes of daily-use energies in Xiajingjia Village are suggested in this paper. In comparison with the existing energy structural ones, firewood plays an important leading role in the structure with its percentage raised. The utilization of biogas and solar energies in the optimized structures increased by several tenfolds. The percentage of straw directly used as feul will drop from 31.5% in the existing structure to 13% in the optimized ones. The cost of energy consumption for cooking and heating will be reduced from 24.93% to 41.17%, and net income of the whole village will increase by more than 13%. Three kinds of the optimum structural schemes can change the original mono-structures into the multiple ones with energy intercompletions, which will have both economic returns and ecological benefits obviously.