Results 11 to 20 of about 1,885,987 (306)

Soil pH and aridity influence distributions of branched tetraether lipids in grassland soils along an aridity transect [PDF]

, 2022
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are membrane lipids of certain soil bacteria, and their relative distributions are used as a proxy for air temperature and soil pH.
Guo, Jingjing, Liu, Nana, Peterse, Francien, Zhang, Xinying, Ma, Wenhong, Organic geochemistry & molecular biogeology, Feng, Xiaojuan, Wang, Zhiheng, Hu, Huifeng, Organic geochemistry, Ma, Tian   +10 more
core   +3 more sources

Preferential degradation of leaf- vs. root-derived organic carbon in earthworm-affected soil [PDF]

, 2020
Earthworms are integral parts of many ecosystems and may play a decisive role in determining whether soils function as carbon (C) sink or source. However, information on how earthworms affect the composition and stability of soil organic matter (SOM) is ...
Angst, Šárka, Peterse, Francien, GeoLab Algemeen, Organic geochemistry & molecular biogeology, Nierop, Klaas G.J., Organic geochemistry, Angst, Gerrit, Frouz, Jan   +7 more
core   +1 more source

Biogeochemical consequences of vertical and lateral transport of particulate organic matter in the southern North Sea: A multiproxy approach [PDF]

, 2015
Vertical and lateral transports are of importance in continental shelf systems such as the North Sea andplay a major role in the processing of organic matter.
Middelburg, J.J., Organic geochemistry & molecular biogeology, Geochemistry, Organic geochemistry, Sinninghe Damsté, J.S., Le Guitton, M., Soetaert, K.   +6 more
core   +2 more sources

Spatial heterogeneity of sources of branched tetraethers in shelf systems: The geochemistry of tetraethers in the Berau River delta (Kalimantan, Indonesia) [PDF]

, 2016
The bulk organic matter composition (total organic carbon (TOC) content and d13CTOC) and composition of isoprenoid and branched glycerol dialkyl glycerol tetraethers (GDGT) in surface sediments from 43 stations in the Berau River delta (east Kalimantan ...
Sinninghe Damsté, Jaap S., Organic geochemistry & molecular biogeology, Organic geochemistry, Sinninghe Damsté, J.S.   +3 more
core   +2 more sources

Sources of organic matter in Changjiang (Yangtze River) bed sediments: Preliminary insights from organic geochemical proxies [PDF]

, 2015
Insight into the content and composition of organic carbon (OC) in river systems contributes to our understanding of the global carbon cycle. The Changjiang (Yangtze River) plays a significant role in global carbon and hydrological cycles, as it is an ...
Zhang, Jing, Peterse, Francien, Organic geochemistry & molecular biogeology, Wu, Ying, Organic geochemistry, Eglinton, Timothy I., Bao, Hongyan, Li, Zhongqiao   +7 more
core   +1 more source

Organic carbon isotope and molecular fossil records of vegetation evolution in central Loess Plateau since 450 kyr [PDF]

, 2016
Significant uncertainties remain regarding the temporal evolution of natural vegetation during the Quaternary, and drivers of past vegetation change, on the Chinese Loess Plateau (CLP).
Zhou, Bin, Peterse, Francien, Organic geochemistry & molecular biogeology, Zhou , Bin, Wali, Guzalnur, Organic geochemistry, Bird, Michael I.   +6 more
core   +1 more source

Contribution of organic matter molecular proxies to interpretation of the last 55ka of the Lynch's Crater record (NE Australia) [PDF]

, 2014
The Lynch's Crater (NE Australia) deposit is a key information source on Late-Quaternary palaeoenvironmental change, including human-induced deforestation since the arrival of Aboriginals, megaherbivore extinction and southern hemisphere tropical climate
Muller, Joanne, Organic geochemistry & molecular biogeology, Kaal, Joeri, Marti´nez Cortizas, Antonio, Organic geochemistry, Schellekens, Judith, Nierop, Klaas   +6 more
core   +1 more source

Characteristics of stable carbon isotopic composition of shale gas

Journal of Natural Gas Geoscience, 2016
A type Ⅱ kerogen with low thermal maturity was adopted to perform hydrocarbon generation pyrolysis experiments in a vacuum (Micro-Scale Sealed Vessel) system at the heating rates of 2 °C/h and 20 °C/h.
Zhenya Qu, Jianan Sun, Jianting Shi, Zhaowen Zhan, Yanrong Zou, Ping'an Peng   +5 more
doaj   +1 more source

Formation of secondary aerosols from gasoline vehicle exhaust when mixing with SO₂ [PDF]

Atmospheric Chemistry and Physics, 2016
Sulfur dioxide (SO2) can enhance the formation of secondary aerosols from biogenic volatile organic compounds (VOCs), but its influence on secondary aerosol formation from anthropogenic VOCs, particularly complex mixtures like vehicle exhaust, remains
T. Liu, T. Liu, X. Wang, Q. Hu, W. Deng, W. Deng, Y. Zhang, X. Ding, X. Fu, X. Fu, F. Bernard, F. Bernard, Z. Zhang, Z. Zhang, S. Lü, S. Lü, Q. He, Q. He, X. Bi, J. Chen, Y. Sun, J. Yu, P. Peng, G. Sheng, J. Fu   +24 more
doaj   +1 more source

Concentration, source identification, and exposure risk assessment of PM2.5-bound parent PAHs and nitro-PAHs in atmosphere from typical Chinese cities

Scientific Reports, 2017
Sixteen parent PAHs and twelve nitro-PAHs were measured in PM2.5 samples collected over one year (2013–2014) at nine urban sites in China. During the sampling period, concentrations of individual nitro-PAHs were one or two orders of magnitude lower than ...
Di Liu, Tian Lin, Jabir Hussain Syed, Zhineng Cheng, Yue Xu, Kechang Li, Gan Zhang, Jun Li   +7 more
doaj   +1 more source