Spatial Water Consumption Test and Analysis of Various Typical Vegetation in the Sanjiangyuan Region

Vegetation water consumption in the Sanjiangyuan Region is of direct significance to utilization local resources. To measure actual evapotranspiration various typical vegetation with different types Region, a Lysimeter was used between November 2019 and October 2020. Additionally, Penman–Monteith equation estimate condensation types. Based on measured data, this paper analyzes spatial distribution annual runoff Furthermore, temporal monthly underlying surfaces are discussed. establish relationship precipitation types, an artificial rainfall test conducted. This study’s results reveal several key findings: (1) Condensation widespread can be observed throughout year. The volume ranges 28.47 56.88 mm, which particularly significant for growth alpine desert steppe vegetation. (2) higher south than north. Shrub found 58.1–73.3 mm that grasses. Water primarily occurred during growing season, spanning from May October. (3) total season meadow less affected by compared non-growing (from next April). (4) yield ignored when calculating balance. However, calculation cannot due its impact consumption.