Coupling of Phosphorus Processes With Carbon and Nitrogen Cycles in the Dynamic Land Ecosystem Model: Model Structure, Parameterization, and Evaluation in Tropical Forests
Zhuonan Wang, Hanqin Tian, Jia Yang, Hao Shi, Shufen Pan, Yuanzhi Yao, Kamaljit Banger, Qichun Yang
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS | AMER GEOPHYSICAL UNION | Published : 2020
The biogeochemical processes of carbon (C), nitrogen (N), and phosphorous (P) are fully coupled in the Earth system, which shape the structure, functioning, and dynamics of terrestrial ecosystems. However, the representation of P cycle in terrestrial biosphere models (TBMs) is still in an early stage. Here we incorporated P processes and C-N-P interactions into the C-N coupled Dynamic Land Ecosystem Model (DLEM-CNP), which had a major feature of the ability in simulating the N and P colimitation on vegetation C assimilation. DLEM-CNP was intensively calibrated and validated against daily or annual observations from four eddy covariance flux sites, two Hawaiian sites along a chronosequence of..View full abstract
Awarded by U.S. National Science Foundation
Awarded by National Key Research and Development Program of China
This study has been supported partially by U.S. National Science Foundation (grants 1903722, 1210360, and 1243232), National Key Research and Development Program of China (grant 2017YFA0604702), AU-OUC Joint Center Program, and the CSC Scholarship. We also thank the former members of the DLEM modeling team for their helpful discussion in the early stage of this work.