The Utilization of Real-Time High Resolution Monitoring Techniques in Karst Carbon Sequestration: A Case Study of the Station in Banzhai Subterranean Stream Catchment

He, Siming; Kang, Zhiqiang; Li, Qingyan; Wang, Lingling

doi:10.3724/sp.j.1248.2012.00054

Cited by 3 publications

(2 citation statements)

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“…1.3 The dynamic changes of karst carbon sinks during flood Basin carbon sinks (F) in karst process were calculated by chemistry-runoff method. Namely, F=0.5 × [HCO 3 -] × Q × 12/61 [7] Among them, F is basin carbon sinks (g C/s), [HCO 3 -] is bicarbonate radical concentration (g/L) in runoff, Q is runoff modeling (L/s), 12 and 61is respectively mole molecular weight [C] and [HCO 3 -]. During this flood monitoring, carbon sinks in the former four stages were increased gradually with increasing flow rate (Fig.…”

Section: 23mentioning

confidence: 99%

“…However, the water discharge will increase multiple. Due to realize high resolution real-time monitoring, there have been well studied on karst subterranean stream and karst spring in small watershed [7] . However for surface rivers of large and middle basin, they are limited to unfavorable condition, such as water level fluctuation, management inconvenience, so instrument is difficult to automatic monitoring, then there is still less research of high precision about surface rivers of large and middle basin.…”

Section: Introductionmentioning

confidence: 99%

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Response of Carbon Sink Dynamic Behaviors to River Flood in Karst Area – A Case Study in the Li River of Guilin

Liu

Jiang

et al. 2013

AMR

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Li River appeared successively three times floods during May 8-17, 2012. We were high-frequency monitoring during the flood once every hour, real time monitoring the pH value, water temperature, EC(electrical conductivity), pCO2(carbon dioxide partial pressure), HCO3- and flow rate, analyzing karst carbon sinks dynamic changes during the flood. It was found that river hydrochemistry and karst carbon sinks in different stages with different variations in Li River. These floods were divided into 5 stages to discuss, researches have shown: AtIand Vstage the river hydrochemistry is not subjected to flooding, pCO2 and pH value, water temperature has distinct characteristics of diurnal variation. EC, flow rate and HCO3- is relatively stable; II, III and IV stage appear different changes characteristics are due to effects of flood, flow rate and HCO3- have a positive correlation at IV stage, with opposite of stage II and III stage. We use water chemistry-runoff method to calculate the amount of carbon sinks in the flood, found in the flood related coefficients between carbon sink and HCO3-, flow rate respectively 0.87 and 0.33. The carbon sink is 3491.06 t C during the flood monitoring, in which carbon sink at IVstage in flood are 4.52 times prior to the flood, which account for that carbon sink in the flood is much larger than the front of flood.

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Section: 23mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%