Evapotranspiration dataset of small lysimeter for sample plot in Tianlaochi watershed, Sidalong Forest Region, Qilian Mountain (June to September 2012)

This data comes from the Tianlaochi watershed sample plot. The vegetation types of the sample plot are grassland, shrub, Sabina przewalskii and Picea crassifolia.The self-made Lysimeter is mainly used to observe the soil evapotranspiration characteristics in Picea crassifolia forestry. To provide basic data for the development of watershed evapotranspiration model.At about 19:00 every day, an electronic scale with an accuracy of 1g is used to weigh the inner barrel. In case of rain, observe whether there is leakage in the leakage barrel. If there is leakage, measure the leakage amount in the leakage barrel as well. The observation period in 2011 is from May 30 to September 10. The observation period in 2012 is from June 11 to September 10.Observation instrument: 1) standard 20cm diameter rain tube rain gauge. 2) self-made lysimeter (diameter 30.5cm, barrel height 28.5). 3) Electronic balance (accuracy: 0.1g) used to observe the weight change of self-made lysimeter.

本数据源自天老池流域样本地。样本地植被类型包括草地、灌木、沙冬青（Sabina przewalskii）及云杉（Picea crassifolia）。自制的土壤蒸发器主要被用于观测云杉林地的土壤蒸散特性，以期为流域蒸散模型的发展提供基础数据。每日约19时，使用精度为1克的电子秤称量蒸发器内桶。遇雨时，需观察泄漏桶是否存在渗漏现象。如有渗漏，则测量泄漏桶中的渗漏量。2011年的观测期自5月30日至9月10日，2012年的观测期自6月11日至9月10日。观测仪器包括：1）标准直径20厘米的雨量筒雨量计；2）自制的土壤蒸发器（直径30.5厘米，桶高28.5厘米）；3）用于观测自制土壤蒸发器重量变化的电子秤（精度：0.1克）。