Results 61 to 70 of about 189,287 (160)

Distribution and potential drivers of methane emissions from deep-sea environments in Haima cold seep areas

open access: yesFrontiers in Marine Science
IntroductionTracing methane originating from deep-sea environments is essential for understanding the global methane budget. However, knowledge regarding the mechanisms governing methane transfer from deep-sea sediments to the water column in cold seep ...
Li Tang   +17 more
doaj   +1 more source

Metagenomics reveals the response of desert steppe microbial communities and carbon-nitrogen cycling functional genes to nitrogen deposition

open access: yesFrontiers in Microbiology
IntroductionNitrogen (N) deposition seriously affects the function of carbon (C) and N cycling in terrestrial ecosystems by altering soil microbial communities, especially in desert steppe ecosystems.
He Ye   +11 more
doaj   +1 more source

Exploring Metabolic Characteristics in Different Geographical Locations and Yields of Nicotiana tabacum L. Using Gas Chromatography–Mass Spectrometry Pseudotargeted Metabolomics Combined with Chemometrics

open access: yesMetabolites
The quality of crops is closely associated with their geographical location and yield, which is reflected in the composition of their metabolites. Hence, we employed GC–MS pseudotargeted metabolomics to investigate the metabolic characteristics of high-,
Yuan Jing   +7 more
doaj   +1 more source

Snapshot Survey of the Presence of Perfluoroalkyl Substances in Products, Articles, and the Environment in Ecuador

open access: yesEngineering
The Stockholm Convention on Persistent Organic Pollutants (POPs) is a legally binding instrument for 186 Parties (status: April 2023). Accordingly, among other responsibilities, countries are obliged to report the production, import, or export of the ...
Heidelore Fiedler   +4 more
doaj   +1 more source

MRSEILA: A modified remote sensing ecological index using local adaptability for enhancing ecological environment quality assessment

open access: yesEcological Informatics
The Remote Sensing Ecological Index (RSEI) has been widely applied in ecological environment quality (EEQ) assessments by integrating multiple environmental factors. To enhance RSEI's ability to capture local ecological variations, a locally adapted version (RSEILA) was designed and widely adopted using moving windows.
Yingzhang Guo   +7 more
openaire   +2 more sources

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