重庆磁器口古镇景区大气CO_2浓度时间特征  

Temporal features of aerial CO_2 concentration in Ciqikou old town, Chongqing

作　　者：韦杰[1] 胡志毅[1] 曹华盛[1] 武咪咪[1] 

机构地区：[1]重庆师范大学地理与旅游学院,重庆400047

出　　处：《生态科学》2014年第5期937-942,共6页Ecological Science

基　　金：重庆市自然科学基金(CSTC2010BB7088)

摘　　要：研究古镇大气CO2浓度特征是景区旅游管理和碳排放控制的基础。利用CO2检测仪对重庆市磁器口古镇车流量大的主街道(A)、客流量大的景区中心(B)和较为空旷的嘉陵江边(C)三点监测了大气CO2浓度,连续采样10天,每天8:00、10:00、13:00、15:00、18:00分别监测一次。研究表明,CO2浓度日内分布遵循"升高—13:00达到最高值—降低"的规律,每天CO2浓度峰值均出现在13:00左右,可能是上午10:00至12:00较大车流量和游客流量的延滞累积效应。三个观测点日内变化差异较大,其中,景区中心(B)观测点日变化最大,其次是主街道(A),嘉陵江边(C)日变化相对较小;CO2浓度均值非工作日显著高于工作日,节假日显著高于非节假日。三个采样点CO2浓度样本均值节假日最高,非工作日次之,工作日最低。Studying the aerial CO2 concentration in the tourism area is an important foundation for tourism management and carbon emissions control. A portable CO2 monitor is used to collect the aerial CO2 concentration data in Ciqikou old town, and three observation places of the main road（A）, the town center（B） and the bank of Jialing River（C） are chosen to represent high traffic flow, high pedestrian flow and natural state. It is monitored at five time nodes（8：00, 10：00, 13：00, 15：00, and 18：00） in each day and it lasts for ten days, covering 5 working days, 2 weekend days and 3 red-letter days. The results indicate that the daily CO2 concentration continues to rise up till the maximum at 13：00, which probably caused by the cumulative effects of large traffic and tourists flows, and then it gradually declines. The daily CO2 concentration changes in the three places vary greatly. The town center（B） has the greatest daily change, followed by the main road（A） and the bank of Jialing River（C）. Generally, the mean CO2 concentration in working days is significantly higher than that of weekend days, and the mean CO2 concentration in holidays is significantly higher than that of non-holidays. For all of the three places, the highest mean CO2 concentration appears in holidays, followed by the weekend days, while the lowest appears in the working days.

关 键 词：CO2浓度 参数检验 磁器口古镇 时间特征 

分 类 号：X831[环境科学与工程—环境工程]