黑河排露沟流域生长季节青海云杉林林分蒸腾耗水量数据集（2011-2013）

开展祁连山森林植被蒸散的定量研究，对正确认识祁连山森林生态系统的水文功能、了解水循环过程和流域水文模型开发, 对制定合理的森林经营管理方案具有十分重要的意义。森林蒸散主要由林下土壤表面蒸发、植被蒸腾和树冠截留水分蒸发组成。传统上蒸散研究方法可以分为实际测定和估算法2类。实际测定方法包括水文学方法、微气象学方法、植物生理方法；估算方法是通过模型计算蒸散，主要包括分析模型和经验模型2类。但这些方法都不能有效的把森林的蒸腾与蒸发区分开来。树干液流法通过测量林木蒸腾耗水量，可有效的计算林地的蒸腾量树干液流法通过测量林木蒸腾耗水量，可有效的计算林地的蒸腾量。我们利用热脉冲技术测量了林木蒸腾耗水量，并尺度扩展至林分尺度，以提示青海云杉林的蒸腾耗水量。Conducting quantitative research on forest vegetation evapotranspiration in the Qilian Mountains is of great significance for accurately understanding the hydrological functions of the Qilian Mountain forest ecosystem, clarifying the water cycle process, developing watershed hydrological models, and formulating rational forest management plans. Forest evapotranspiration is primarily composed of sub-canopy soil surface evaporation, vegetation transpiration, and evaporation of canopy-intercepted water. Traditionally, evapotranspiration research methods can be categorized into two groups: actual measurement methods and estimation methods. Actual measurement methods include hydrological approaches, micrometeorological techniques, and plant physiological methods; estimation methods calculate evapotranspiration through models, which mainly fall into two classes: analytical models and empirical models. However, none of these methods can effectively differentiate between forest transpiration and evaporation. The sap flow method, which measures tree transpiration water consumption, can effectively calculate the transpiration volume of forest stands. We utilized heat pulse technology to measure tree transpiration water consumption, and scaled up the measurements to the stand scale to reveal the transpiration water consumption of Picea crassifolia forests.