摘要
采用美国TELAIRE 7001型红外二氧化碳分析仪对校园4个不同观测点的二氧化碳浓度动态特征进行连续1a的观测。校园二氧化碳浓度变化呈明显的日、季节和空间变化。日变化趋势呈"V"型曲线,树林二氧化碳浓度值高于其他观测点,近地层空气平均二氧化碳浓度为355.1±20 mg/m3;二氧化碳浓度按季节大小排序为:春季>夏季>秋季>冬季,5—6月份二氧化碳浓度值最高。气温变化、人为活动及局部生境变化对二氧化碳浓度变化的影响最显著。温度变化与二氧化碳浓度值之间具明显的正相关性。
In order to observe the temporal and spatial changes of CO2 concentration on Xinjiang Agricultural Uni- versity campus, four different observation sites of CO2 concentration were set up and monitored on campus using the American TELAIRE 7001 CO2 analyzer. The results indicated that the temporal and spatial concentration of the CO2 changed obviously. Daily variation showed a ＂V＂ shape curve. The CO2 density in forest was higher than that of other observation points. The average CO2 concentration in the ground layer air was 355.1 ＋ 20 ppm. The CO2 concentrations changed seasonally. It was highest in the summer, followed by spring, autumn, and winter. The peak appeared in May and June. The temperature change, human activities, and the influence of the local habitat changes impacted the C02 significantly. The temperature change correlated positively to the CO2 density.
出处
《环境科学导刊》
2015年第4期42-46,52,共6页
Environmental Science Survey
基金
国家级大学生创新项目(201410758003)
乌鲁木齐市科技计划项目
新疆维吾尔自治区森林培育重点学科资助
关键词
校园
二氧化碳浓度
动态特征
观测
日变化
季节变化
空间变化
campus
CO2concentrations
air temperature
dynamic characteristics
observation
daily change
seasonal change
