Simulating the ecosystem-atmosphere carbon, water and energy fluxes at a subtropical Indian forest using an ecosystem model

被引:1
|
作者
Burman, Pramit Kumar Deb [1 ,2 ]
Prajeesh, A. G. [3 ]
Chakraborty, Supriyo [2 ]
Tiwari, Yogesh K. [1 ,2 ]
Sarma, Dipankar [1 ]
Gogoi, Nirmali [4 ]
机构
[1] Minist Earth Sci, Indian Inst Trop Meteorol, Ctr Climate Change Res, Pune 411008, India
[2] Savitribai Phule Pune Univ, Dept Atmospher & Space Sci, Pune 411007, India
[3] King Abdullah Univ Sci & Technol, Climate Change Ctr, Thuwal 23955, Saudi Arabia
[4] Tezpur Univ, Dept Environm Sci, Tezpur 784028, India
关键词
Terrestrial ecosystems; Carbon cycle; Gross primary productivity; Process -based model; Ecosystem model; Vegetation model; NET PRIMARY PRODUCTIVITY; LAND-SURFACE MODEL; EDDY-COVARIANCE; USE EFFICIENCY; GRASSLAND ECOSYSTEMS; STOMATAL CONDUCTANCE; BIOCHEMICAL-MODEL; MANGROVE FORESTS; PHOTOSYNTHESIS; TRANSPIRATION;
D O I
10.1016/j.ecolmodel.2024.110637
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The ecosystem-atmosphere exchanges of terrestrial ecosystems are key drivers of global carbon, water, and energy cycles which are crucial to be measured accurately and represented in bottom-up biogeochemically and biogeophysically coupled ecosystem, Earth system, and climate models for improving the model predictions and impact assessment of climate change on these ecosystems. The diverse natural ecosystems in India are poorly represented in these models due to the absence any of integrated data-model framework and intercomparison study so far. To partially address this, we have used flux-tower measurements in this study to simulate the gross primary productivity (GPP), sensible (H), and latent heat fluxes (LE) of a moist semi-evergreen deciduous forest in the Kaziranga National Park in subtropical Northeast India using a process-based model ISAM. The model is calibrated using two years of measurement which improves its performance when subsequently run to simulate these fluxes for a year. The model produced annual GPP, mean maximum H, and LE are 2432.26 gC m- 2 y-1, 29 and 82 W m- 2 respectively as compared to their measured values i.e. 2398.47 gC m- 2 y-1, 26 and 73 W m- 2 correspondingly. Additionally, we report the calibrated model biogeochemical and biogeophysical parameters which will be useful to simulate the fluxes in this forest using the aforementioned models.
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页数:13
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