Spatiotemporal Evolution of the Carbon Fluxes from Bamboo Forests and their Response to Climate Change Based on a BEPS Model in China

Abstract

Carbon flux is the main basis for judging the carbon source/sink of forest ecosystems. Bamboo forests have gained much attention because of their high carbon sequestration capacity. In this study, we used a boreal ecosystem productivity simulator (BEPS) model to simulate the gross primary productivity (GPP) and net primary productivity (NPP) of bamboo forests in China during 2001–2018, and then explored the spatiotemporal evolution of the carbon fluxes and their response to climatic factors. The results showed that: (1) The simulated and observed GPP values exhibited a good correlation with the determination coefficient (R2), root mean square error (RMSE), and absolute bias (aBIAS) of 0.58, 1.43 g C m−2 day−1, and 1.21 g C m−2 day−1, respectively. (2) During 2001–2018, GPP and NPP showed fluctuating increasing trends with growth rates of 5.20 g C m−2 yr−1 and 3.88 g C m−2 yr−1, respectively. The spatial distribution characteristics of GPP and NPP were stronger in the south and east than in the north and west. Additionally, the trend slope results showed that GPP and NPP mainly increased, and approximately 30% of the area showed a significant increasing trend. (3) Our study showed that more than half of the area exhibited the fact that the influence of the average annual precipitation had positive effects on GPP and NPP, while the average annual minimum and maximum temperatures had negative effects on GPP and NPP. On a monthly scale, our study also demonstrated that the influence of precipitation on GPP and NPP was higher than that of the influence of temperature on them.

Disentangling the Key Drivers of Ecosystem Water-Use Efficiency in China’s Subtropical Forests Using an Improved Remote-Sensing-Driven Analytical Model

“…Methodologically, different techniques have been used to estimate vegetation WUE and to unravel its drivers over multiple spatiotemporal scales. The flux tower can offer reliable carbon-water flux observations for estimating WUE in forest ecosystems, while field measurements of WUE by flux towers are scarce in the Chinese subtropical forest region [35]. Moreover, the footprint of a flux tower is limited from a few kilometers in the best case, which limits our understanding of forest WUE and its driving factors over large spatial scales [35].…”

Innovative Industrial Use of Bamboo as Key “Green” Material

“…Bamboo forests possess great potential for carbon sequestration, and they are the most likely type of forest to enter the emission reduction market [32]. Several studies have reported the role of bamboo forests in global carbon cycling [19,33] as well as their successful use in absorbing wastewater from agriculture, industry, animal husbandry, and pollution. Bamboo is particularly useful in terms of air protection as a good material for carbon sequestration.…”

Tissue-cultured regeneration and ecological values in major bamboo species

“…It sequesters variable carbon concentrations from the surroundings and maintains carbon concentration points through the carbon cycle (Abebe et al 2021). Bamboo conducts the carbon cycle metabolism for stabilizing carbon concentrations and the soil environment through the carbon cycle and biomass (Kang et al 2022). Bamboo maintains the industrial economic value and natural resources from disaster.…”

“…Bamboo governs an imperative role in the maintenance of climatic factors (Kang et al 2022). Bamboo sequesters variable carbon and has a different growing period (Bradshaw 2012).…”