Results 1 to 10 of about 221,002 (361)

Organic matter lability modifies the vertical structure of methane-related microbial communities in lake sediments [PDF]

open access: yesMicrobiology Spectrum, 2023
Eutrophication increases the input of labile, algae-derived, organic matter (OM) into lake sediments. This potentially increases methane (CH4) emissions from sediment to water through increased methane production rates and decreased methane oxidation ...
Antti J. Rissanen   +7 more
doaj   +2 more sources

Characteristics and environmental significance of organic carbon in sediments from Taihu Lake, China

open access: yesEcological Indicators, 2022
The rapid economic development in the Yangtze River Delta has affected the carbon (C) pool in lake sediments, which has become a serious environmental management issue.
Kangkang Yu   +7 more
doaj   +1 more source

How we can disrupt ecosystem of urban lakes– pollutants of bottom sediment in two shallow water bodies [PDF]

open access: yesArchives of Environmental Protection, 2021
The research covered two lakes: Karczemne and Domowe Małe, which served as receivers for rainwater and municipal or industrial sewage. The sediment cores were obtained using a Kajak tube sampler.
Jolanta Katarzyna Grochowska   +5 more
doaj   +1 more source

Bacterial diversity in surface sediments of collapsed lakes in Huaibei, China

open access: yesScientific Reports, 2022
The collapse lake area due to coal mining in Huaibei shows high biodiversity, but the bacterial community composition and diversity in the lake sediments are still rarely studied.
Zijian Shen   +5 more
doaj   +1 more source

Evaluation of the distribution of N, P and organic matter in sediment and the pollution status of Lakes in southeastern Hubei Province, China

open access: yesJournal of Freshwater Ecology, 2023
Eutrophication caused by nutrients and organic matter (OM) pollution is a common problem in the world. The contents of total nitrogen (TN), total phosphorus (TP) and OM in sediments were determined in four typical lakes in southeastern Hubei, China, in ...
Xiaowen Lin   +7 more
doaj   +1 more source

Pollution characteristics and ecological risk assessment of heavy metals in surface sediments of main lakes in Dongxihu district, Wuhan

open access: yes地质科技通报, 2021
In this work, heavy metals in surface sediments of main lakes in Dongxihu district of Wuhan City were investigated. The results showed that the average concentrations of Zn, Cr, Ni, Cu, Pb, As, Cd and Hg were 108, 103, 45.3, 39.5, 32.3, 15.1, 0.34 and 0 ...
Jie Gong   +5 more
doaj   +1 more source

Dating Lake Sediments Using Compound‐Specific 14C Analysis of C16 Fatty Acid: A Case Study From the Mount Fuji Volcanic Region, Japan

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Lake sediments in volcanic regions contain continuous records of past eruptions and their environmental consequences. However, the frequent scarcity of plant material in lake sediments makes it difficult to provide robust age estimates. In this study, we
Shinya Yamamoto   +6 more
doaj   +1 more source

Speciation and spatial distribution of nitrogen in surface sediments of in Ming Lake [PDF]

open access: yesE3S Web of Conferences, 2019
To reveal the diverse occurrence forms and spatial distribution characteristics of nitrogen in the surface sediments of Ming Lake, a sequential leaching method was employed to determine the nitrogen in the surface sediments of Ming Lake. The results show
Li Yu, Kuang Qi-yu, Din Chao
doaj   +1 more source

Geochemistry and Petrography of the Sediments From the Marginal Areas of Qinghai Lake, Northern Tibet Plateau, China: Implications for Weathering and Provenance

open access: yesFrontiers in Earth Science, 2021
The provenance study of the sediments from Qinghai Lake is of great significance for the understanding of geological and climatic evolution processes of the Tibet Plateau on the one hand and for evaluating the controlling factors of the sediment ...
Huifei Tao   +6 more
doaj   +1 more source

Geochemical records of the sediments and their significance in Dongping Lake Area, the lower reach of Yellow River , North China

open access: yesJournal of Groundwater Science and Engineering, 2021
Dongping Lake area, located in the lower reaches of Yellow River, is an ideal place to study the changes of modern river and lake sedimentary environment.
Lin-song Yu   +5 more
doaj   +1 more source

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