Abstract
Flaring of natural gas is an environmental degrading phenomena and effect on texture of the atmosphere. Higher atmospheric carbon dioxide (CO2) changes plant morphological as well as biochemical composition, leading to nitrogen limitation for the plant. Cassia tora, a common weed, was selected to measure the impact of gas flaring in two group gathering stations (GGSs) of Sivasagar district of Assam, India. Epidermal peels as well as scanning electron microscopy observation revealed possible changes in leaf epidermal traits of the plant. CO2 was recorded as the dominant atmospheric gases in nearby areas of gas flaring sites. Apart from this, significant reduction in nitrogen (%), specific leaf area (SLA) (mm2 mg−1), chlorophyll (mg−g) and stomatal pore length (µm) as well as increases in leaf dry matter content (LDMC), leaf thickness (mm) and carbon percentage of C. tora were recorded under CO2 stress environment at both the GGSs. Simulation studies conducted under open-top chamber (OTC) also revealed similar trend.
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