A5091454352- Plant Water Relations and Carbon Dynamics
- Hydrology and Watershed Management Studies
- Climate variability and models
- Soil Moisture and Remote Sensing
- Plant responses to elevated CO2
- Soil Carbon and Nitrogen Dynamics
Chinese Academy of Sciences
2020-2024
University of Chinese Academy of Sciences
2020-2024
Institute of Geographic Sciences and Natural Resources Research
2020-2024
Ecosystem gross primary productivity (GPP) is the largest carbon flux between atmosphere and biosphere strongly influenced by soil moisture. However, response acclimation of GPP to moisture remain poorly understood, leading large uncertainties in characterizing impact on Earth system models. Here we analyze GPP-soil curves at 143 sites from global FLUXNET. We find that 108 exhibits hump-shaped with increasing moisture, an apparent optimum ( $${{\rm{SM}}}^{{\rm{GPP}}}_{{\rm{opt}}}$$ , which...
Abstract Land surface models typically ignore plant hydraulic processes and use empirical soil moisture stress functions to limit transpiration photosynthesis. How hydraulics impacts the predictions of carbon water fluxes their responses drought remains unclear. Here, we developed an analytical scheme wherein capacitances at leaf level stem were considered, incorporated it into vegetation interface model (hereafter, VIP‐PHS). Then, calibrated VIP‐PHS parameters using a Markov Chain Monte...