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蒸发和呼吸

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产品名称: 蒸发和呼吸
产品型号: 蒸发和呼吸
产品展商: 北京华益瑞科技有限公司
简单介绍
University Paris Sud-Orsay: Plant Research 项目概况应用类型：测量蒸发和呼吸位置：法国承包商：University Paris Sud-Orsay 测量参数：空气温度，二氧化碳，相对湿度，光合有效辐射

蒸发和呼吸的详细介绍

Dataloggers from Campbell Scientific are being used for measurementand control as part of a branch bag system at the University ParisSud-Orsay in France. The dataloggers control large polypropylenebags so that they close around the branches of a tree for threeminutes during a half hour period. Every 20 seconds during thisclosure air temperature, CO2 concentration, relative humidity, andphotosynthetically active radiation are recorded. Betweenmeasurements, the bags are ventilated. The fully automatic systemprovides net photosynthesis and transpiration measurements by day,as well as respiration data by night. Around 6,500 data points arerecorded every 24 hours, enabling the logger to work uninterruptedfor more than six weeks if necessary.

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北京华益瑞科技有限公司  联 系 人：谢晶 联系电话：010-88202236  传真电话：010-88202336   移动电话：13892859008    北京华益瑞科技有限公司西安办事处  联 系 人：谢晶 联系电话：029-85429693  传真电话：029-85429692   移动电话：13892859008