摘要
文章以河北丰宁抽水蓄能电站为研究对象,采用静态箱法进行电站上下水库水—气界面温室气体通量监测,分析电站上下水库水—气界面温室气体通量和水库温室气体净通量特征,填补了国内抽水蓄能电站水库温室气体通量研究的空白,为电站运行期碳足迹研究提供技术支撑。结果表明:①电站上水库、拦沙库、下水库、下水库坝下区水—气界面CO_(2)、CH_(4)通量存在明显的空间差异性;②电站水—气界面CO_(2)、CH_(4)通量在拦沙库库区达到最高值,说明拦沙库泥沙淤积过程对温室气体排放存在一定影响;③电站每年水库温室气体净通量为3540.09tCO_(2)e,运行期单位发电量碳排放量为0.56gCO_(2)e/kWh,远低于全球水电碳排放平均值(25.8±3.0)gCO_(2)e/kWh,具有明显的绿色低碳特性。
The article takes the Fengning Pumped Storage Power Station(PSPS)in Hebei Province as the research object,and uses the static chamber method to monitor greenhouse gas(GHG)fluxes at the water-air interface of both the upper and lower reservoirs.The characteristics of the GHG fluxes at the water-air interface of both the upper and lower reservoirs and the reservoir net GHG fluxes are analyzed,filling a gap in domestic research on reservoir GHG fluxes in PSPS and providing technical support for the study of carbon footprint during the operation period of PSPS.The results indicated that:①There were marked spatial differences in CO_(2) and CH_(4) fluxes at the water-air interface among the upper reservoir,the sediment trapping reservoir,the lower reservoir,and the downstream of the lower reservoir dam.And these values were all carbon sources.②The CO_(2) and CH_(4) fluxes at the waterair interface reached the highest value in the sediment trapping reservoir,which were greater than those in the upper reservoir,the lower reservoir and the downstream of the lower reservoir dam.This indicated that the sediment deposition process of the sediment trapping reservoir had a certain impact on GHG emissions.③The annual reservoir net GHG fluxes is 3540.09tCO_(2)e.And the carbon emission per unit power generation during the operation period was 0.56gCO_(2)e/kWh,which is significantly lower than the global average carbon emission of hydropower,which stand at(25.8±3.0)gCO_(2)e/kWh,demonstrating notable green and low-carbon characteristics.
作者
赵翠平
金弈
董磊华
李哲
鲁伦慧
ZHAO Cuiping;JIN Yi;DONG Leihua;LI Zhe;LU Lunhui(Powerchina Beijing Engineering Corporation Limited,Beijing 100024,China;Chongqing Institute of Green and Intelligent Technology,Chinese Academy of Sciences,Chongqing 400714,China)
出处
《水电与抽水蓄能》
2025年第4期46-49,65,共5页
Hydropower and Pumped Storage
关键词
抽水蓄能电站
静态箱法
水—气界面温室气体通量
水库温室气体净通量
pumped storage power station
the static chamber method
greenhouse gas(GHG)fluxes at the water-air interface
the reservoir net GHG fluxes
