Journal ArticleDOI
Biosphere-atmosphere exchange of NOx in the tropical mangrove forest
TLDR
In this paper, the Sundarban mangrove forest along the northeast coast of the Bay of Bengal, India, showed uptake rate of −0.84 to −1.63 ng N m−2 s−1 during the day and both uptake and emission rates of − 0.36 to 5.19 ng Nm−2 S−1 in the night from September to February.Abstract:
[1] Biosphere-atmosphere exchange of NOx at the Sundarban mangrove forest along the northeast coast of the Bay of Bengal, India, showed uptake rates of −0.84 to −1.63 ng N m−2 s−1 during the day and both uptake and emission rates of −0.36 to 5.19 ng N m−2 s−1 during the night from September to February. However, during the period from March to August, NOx emission ranged between 0.34 and 2.13 ng N m−2 s−1 and 0.88 and 3.26 ng N m−2 s−1 in daytime and nighttime, respectively. During the postmonsoon period, NOx uptake could be attributed to mangrove stomatal activity during the day. Mangroves absorbed nitrogen from both the soil and the atmosphere. Seasonal and diurnal variability of NOx and O3 is partly due to plant growth in the postmonsoon period. In addition to the NOx-O3 photochemical cycle, stomatal uptake of NOx could also be an important process for keeping a low-ozone state at the land-ocean boundary of the northeast coast of the Bay of Bengal.read more
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Journal ArticleDOI
Mangrove Facies Drives Resistance and Resilience of Sediment Microbes Exposed to Anthropic Disturbance.
Cécile Capdeville,Thomas Pommier,Jonathan Gervaix,François Fromard,Jean-Luc Rols,Joséphine Leflaive +5 more
TL;DR: The higher stability of microbial communities in this facies confirms the hypothesis that microbial communities should be the most stable in the facies where the consequences of the anthropic disturbance are the most similar to those of natural disturbances.
Journal ArticleDOI
Measurements and modeling of reactive nitrogen deposition in southeast Brazil.
TL;DR: Increased reactive nitrogen (Nr) deposition due to expansion of agro-industry was investigated considering emission sources, atmospheric transport and chemical reactions, and a simple mathematical modeling procedure was developed to enable estimates of total Nr dry deposition to be made from knowledge of NO2 concentrations.
Journal ArticleDOI
Seagrass metabolism and carbon dynamics in a tropical coastal embayment
Dipnarayan Ganguly,Gurmeet Singh,Purvaja Ramachandran,Arumughan Paneer Selvam,Kakolee Banerjee,Ramesh Ramachandran +5 more
TL;DR: Though the seagrass meadows of Palk Bay are increasingly subject to human impacts, with coupled regulatory and management efforts focused on improved water quality and habitat conservation, these key coastal ecosystems will continue to be valuable for climate change mitigation, considering their vital role in C dynamics and interactions with the overlying water column.
Journal ArticleDOI
The post-monsoon carbon biogeochemistry of the Hooghly–Sundarbans estuarine system under different levels of anthropogenic impacts
TL;DR: In this article, the authors focused on understanding differences in the post-monsoon carbon biogeochemistry of two adjacent estuaries undergoing different levels of anthropogenic stresses by investigating anthropogenically-influenced Hooghly estuary and mangrove-dominated Sundarbans in the north-eastern India.
Journal ArticleDOI
Food web structure and isotopic niche in a fringe macro-tidal mangrove system, Tropical Eastern Pacific
Diana Medina-Contreras,Diana Medina-Contreras,Fernando Arenas-Gonzalez,Jaime Ricardo Cantera-Kintz,Alberto Sánchez-González,Alan Giraldo +5 more
TL;DR: In this paper, stable isotope data (δ13C/δ15N) of primary producers and consumers (macroinvertebrates) were analyzed using Bayesian mixing models (MixSIAR/SIBER).
References
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