Investigation of biogenic volatile organic compounds emissions in the Qinghai-Tibetan Plateau

Wang, Luxi; Lun, Xiaoxiu; Wu, Ju; Wang, Qiang; Tao, Jinhua; Dou, Xiankang; Zhang, Zhijun

doi:10.1016/j.scitotenv.2023.165877

Cited by 6 publications

(5 citation statements)

References 70 publications

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“…Additionally, studies suggested a significant negative correlation between the isoprene emission rate of certain plants and PAR [41]. This congruity with investigations about arboreal taxa corroborated the pronounced impact of pivotal environmental factors on the emission rates of volatile organic compounds from these three aquatic plants [27,29,[42][43][44].…”

Section: Bvoc Emission Characteristics: Comparison With Other Plant S...supporting

confidence: 63%

“…The intermediate products produced during photosynthesis were used by plants to synthesize isoprenoids [48]. Therefore, there was a significant variation in the types and rates of BVOCs emitted by different plant species [29,33,44,[49][50][51]. The indicators reflecting plant physiology included the net photosynthetic rate, stomatal conductance, intercellular CO 2 concentration, and transpiration rate.…”

Section: Bvoc Emission Characteristics: Comparison With Other Plant S...mentioning

confidence: 99%

“…Therefore, it is essential for large amounts of measurements on BVOC emission factors from various plants and vegetation types. Although large amounts of studies have been conducted to investigate the BVOC emission factors of dominant species in different Chinese regions [23][24][25][26][27][28][29], the field measurements of BVOC emissions from wetland species are still limited. In such a context, emissions from wetlands are typically ignored in emission inventory studies, leading to significant underestimates of regional and global BVOC emission estimations.…”

Section: Introductionmentioning

confidence: 99%

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Emission Pattern of Biogenic Volatile Organic Compounds from Wetland Vegetation

Chen,

Wang,

et al. 2024

Atmosphere

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Biogenic volatile organic compounds (BVOCs) significantly contribute to atmospheric chemistry at both regional and global scales. The composition and intensity of BVOC emissions vary significantly among different plant species. Previous studies have focused on BVOC emissions from tree species, but the results of research on BVOC emissions from wetland plants are still limited. Therefore, in this study, BVOCs emitted by three aquatic plants (Phragmites australis, Typha angustifolia, and Iris pseudacorus) were sampled and analyzed using a dynamic headspace technique combined with GC-MS at daily scales. The diurnal observation data showed that the total BVOC emission rates of the three plants peaked with the increase in environmental factors (temperature, PAR, and water temperature). P. australis was the only of the three plants that emitted isoprene with a high rate of 48.34 μg·g−1Dw·h−1. Moreover, the peak emission rates of total BVOC (78.45 μg·g−1Dw·h−1) in P. australis were higher than most tree species. The emissions rates of volatile organic compounds, including monoterpenes, oxygenated volatile organic compounds, alkanes, and other volatile organic compounds, were statistically correlated across all species. The emission rates of isoprene from P. australis had significant associations with intercellular CO2 concentration (Ci) (0.58, p < 0.05) and transpiration rate (Tr) (−0.63, p < 0.01). The emission rates of monoterpenes from P. australis were found to have a significantly positive correlation with the net photosynthetic rate (Pn) (0.58, p < 0.05) while T. angustifolia (−0.59, p < 0.05) and I. pseudacorus (−0.47, p < 0.05) showed the opposite trend. Such findings hold significance for the refinement of localized emission inventories and the development of comprehensive emission process models in future research, as BVOC emissions from wetland plants were reported here for the first time.

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Section: Bvoc Emission Characteristics: Comparison With Other Plant S...supporting

confidence: 63%

Section: Bvoc Emission Characteristics: Comparison With Other Plant S...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Emission Pattern of Biogenic Volatile Organic Compounds from Wetland Vegetation

Chen,

Wang,

et al. 2024

Atmosphere

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“…In the present study, longifolene significantly correlated with borneol and showed similar correlation with other chemical components. It has been shown that monoterpene, sesquiterpene, and oxygenated monoterpene originate from different biosynthesis pathways and their synthesis and emission may largely influence storage in tree stem (Pazouki and Niinemets 2016;Wang et al 2023).…”

Section: Association Between Bvocsmentioning

confidence: 99%

“…Because global warming affects temperature-dependent ecosystem processes in forests (Parks et al 2023), the measures of nutrient availability and diversity of plant secondary compounds, including BVOCs, are becoming increasingly important. The biomonitoring on dynamics of BVOCs is important to understand the change of ecosystems and climate (Chen et al 2019;Wang et al 2023). The BVOCs studies are primarily concentrated on diurnal and seasonal emissions (Chen et al 2019(Chen et al , 2020Ge et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Climate-affected multi-decadal variations of biogenic volatile organic compounds in Pinus tabuliformis growth rings

Li,

Wang,

Liu

et al. 2024

BioRes

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Long-term dynamics of biogenic volatile organic compounds (BVOCs) in trees are rarely reported, despite environmental factors (such as climate change) influencing their growth and the subsequent chemical accumulation. For this, tree growth rings provide a promising biological proxy for the long-time variation and correlation with environmental changes. Therefore, tree rings from Pinus tabuliformis (two stem disks and 40 tree cores) were collected in the Taihang Mountain Macaque National Nature Reserve of China. These samples were divided into seven 5-year resolutions over the 34-year period 1985 to 2018. This enabled analysis of multi-decadal variations of compounds and their correlation with climate variability. A total of 292 BVOCs were detected; however, only 18 compounds were found together across all the 7 growth-periods. Temporal analyses showed decreasing trends for monoterpenes (0.026%/yr) and diterpenes (0.120%/yr), whereas alcohols and oxygenated monoterpenes showed increasing trends at 0.031%/yr and 0.042%/yr, respectively. Correlation analyses showed no obvious link to yearly precipitation, while seasonal temperature had a negative effect on monoterpenes and diterpenes but positive effects on alcohols and oxygenated monoterpenes (all P < 0.05). The present study showed that dendrochronology is a suitable method for re-establishing the biological effects from historical climate variability on key tree species.

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