Journal article

Enhancing SWAT simulation of forest ecosystems for water resource assessment: A case study in the St. Croix River basin

Q Yang, JE Almendinger, X Zhang, M Huang, X Chen, G Leng, Y Zhou, K Zhao, GR Asrar, R Srinivasan, X Li

Ecological Engineering | Published : 2018

Abstract

Forests often cover a significant portion of a watershed and play an important role in water, carbon, and nutrient cycling. The widely-used Soil and Water Assessment Tool (SWAT) has not been thoroughly tested for simulating forest ecosystems and associated impacts on watershed-scale water resource assessment. Using the St. Croix River basin as a testbed, we examined SWAT simulations of forest biomass, net primary productivity (NPP), evapotranspiration (ET), and water yield with default and improved model settings. Model simulations with the default parameterization significantly underestimated forest biomass, ET, and NPP relative to benchmark data. With adjusted forest growth and development..

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