一、温棚室内CO2浓度的日变化温棚室是利用温室效应来改善作物生长所需温度条件而密闭的作物栽培场所，其光、温、水、气等条件与露地栽培有明显的差异，特别是CO2的浓度与室外的差异更大。据测试，在夜间，温棚室密闭蔬菜排出的CO2，土壤中有机物释放出的CO2都集中在棚内，清 First, the greenhouse indoor CO2 concentration diurnal changes Greenhouse greenhouse greenhouse effect is to improve the temperature conditions required for crop growth and confined crop cultivation sites, the light, temperature, water, gas and other conditions were significantly different from open field cultivation, In particular, CO2 concentration and outdoor differences greater. According to the test, in the night, the CO2 in the canopy sealed vegetables in the greenhouse can be concentrated in the greenhouse by the organic matter in the soil