Search
Search Results
-
The Electronic Kinetics of Molecular Nitrogen and Molecular Oxygen in the Earth’s Middle Atmosphere during the GLE Events of Solar Cycle 23
AbstractBased on models of the electronic kinetics of triplet and singlet states of molecular nitrogen and singlet states of molecular oxygen for the...
-
The oxygen cycle and a habitable Earth
As an important contributor to the habitability of our planet, the oxygen cycle is interconnected with the emergence and evolution of complex life...
-
Onset of the Earth’s hydrological cycle four billion years ago or earlier
Widespread interaction between meteoric (fresh) water and emerged continental crust on the early Earth may have been key to the emergence of life,...
-
Ecological Assessment of Oxygen Balance: A Case Study of China’s Natural Oxygen Bars
Ecological assessment plays a vital role in sustainable development of the environment, and thus exploration of specific and integrated ecological...
-
The photosynthetic oxygen evolution does not exclude the important role and contribution of bicarbonate photolysis
Photosynthesis is the most important biochemical reaction on Earth. It has co-evolved and developed with the Earth, driving the biogeochemical cycle...
-
Variations in terrestrial oxygen sources under climate change
The terrestrial ecosystem is an important source of atmospheric oxygen, and its changes are closely related to variations in atmospheric oxygen...
-
Climate Change and Its Impact on Depletion of Oxygen Levels on Coastal Waters and Shallow Seas
If there is insufficient oxygen on our globe, aquatic habitats, people’s health, and the biosphere as a whole may be jeopardized. All water bodies...
-
A novel model of the carbon cycle in the Cambrian ocean
The classic model of the carbon cycle suggests that the extensive burial of 12 C-enriched organic carbon leads to a positive carbon isotope ( δ 13 C)...
-
Oxygen dynamics in marine productive ecosystems at ecologically relevant scales
The decline of dissolved oxygen in the oceans could be detrimental to marine life and biogeochemical cycles. However, predicting future oxygen...
-
Sources and transformations of nitrite in the Amundsen Sea in summer 2019 and 2020 as revealed by nitrogen and oxygen isotopes
In this study, the nitrogen and oxygen isotope compositions of nitrite in the upper 150 m water column of the Amundsen Sea in the summer of 2019 and...
-
Globally coherent water cycle response to temperature change during the past two millennia
The response of the global water cycle to changes in global surface temperature remains an outstanding question in future climate projections and in...
-
The role of biota in the Southern Ocean carbon cycle
The Southern Ocean, although relatively understudied owing to its harsh environment and geographical isolation, has been shown to contribute...
-
Unraveling the Cenozoic carbon cycle by reconstructing carbonate compensation depth (CCD)
The Carbonate Compensation Depth (CCD) refers to the depth within the ocean where the production and dissolution rates of carbonates reach...
-
Assessing the impact of climate change on dissolved oxygen using a flow field ecosystem model that takes into account the anaerobic and aerobic environment of bottom sediments
This study examines the potential impacts of climate change on Lake Biwa, Japan’s largest freshwater lake, with a focus on temperature, wind speed,...
-
Factors contributing to the oxygen concentration over the Qinghai-Tibetan Plateau and its contribution rate calculation
A decline in atmospheric oxygen concentration is projected in the 21st century given the background of global warming. The Qinghai-Tibetan Plateau is...
-
Studies of the Seasonal Variability of Oxygen, Apparent Oxygen Utilization, and Chlorophyll-A in the Northeastern Part of the Black Sea in 2012
AbstractThe results of the analysis of the variability of the concentration of dissolved oxygen and chlorophyll-a (Chl-a), as well as the values of...
-
Effect of Global Warming on the Atmospheric Lifetime of Odd Oxygen
AbstractData on the effect of global warming on the atmospheric lifetime of odd oxygen, O x , are presented. The results characterize the effect at...
-
Study on durability of MICP treated cohesive soils under dry–wet cycle and freeze–thaw cycle
Microbially induced carbonate precipitation (MICP) technology is a new type of soil modification technology with low energy consumption, less...
-
Composition characteristics of magnesium isotopes in groundwater and their application prospects in water cycle processes
In addition to traditional isotopes, non-traditional isotopes have gradually been applied in the hydrosphere, such as lithium, strontium, magnesium,...
-
Spatiotemporal variation of dissolved oxygen in the Ediacaran surface ocean and its implication for oceanic carbon cycling
The Ediacaran Period (635–539 Ma) witnessed the largest negative excursion in inorganic carbon isotope (δ 13 C carb ) over the Earth’s geological...