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Sile Wei, Mingyi Hu, Sheng He, Wei Yang, Qing He, Quansheng Cai and Ping Li
The vertical geochemical variations in total organic carbon (TOC) content and major and trace elements of the Lower Cambrian Shuijingtuo Formation from the Yichang Slope in the Upper Yangtze were investigated to assess the environmental conditions (redox...
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Yanan Wang, Xiulei Cheng, Kai Fan, Zhipeng Huo and Lin Wei
The organic-rich shale of the Permian Taiyuan Formation (TYF) and Shanxi Formation (SXF) in the Southern North China Basin (SNCB) is considered a potential shale gas source. The shale was formed in a marine-continental transitional sedimentary environmen...
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Jie Li, Baobao Sun, Cheng Liu, Marios Drosos, Xuhui Zhang, Xiaoyu Liu, Lianqing Li and Genxing Pan
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Shao-Ze Zhao, Yong Li, Hua-Jun Min, Tong Wang, Zhou Nie, Zhan-Zhao Zhao, Jia-Zhen Qi, Jin-Cheng Wang and Jia-Peng Wu
This study uses logging data, mineral component content, total organic carbon (TOC) content, and microscopic characteristics of the organic-rich shales in the Wufeng and Longmaxi Formations, as well as data reported by other researchers, to demonstrate t...
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Qiyang Zhang, Entao Liu, Songqi Pan, Hua Wang, Zhenhua Jing, Zhengfu Zhao and Ruiyue Zhu
Studying the accumulation rules of organic matter (OM) in paleo-ocean sediments can not only enhance our understanding of how OM becomes enriched in ancient oceans but also provide guidance for the exploration of shale gas in unconventional shale strata....
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Mingchuan Zhang, Xi Chen, Xinyang Xu, Zhongtian Fu and Xin Zhao
After the anaerobic digestion of livestock manure, high concentrations of nutrients still remain. Treatment of livestock wastewater through partial nitrification coupled with anaerobic ammonium oxidation (ANAMMOX) could be a useful technology depending o...
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Agnia D. Galachyants, Irina V. Tomberg, Elena V. Sukhanova, Yulia R. Shtykova, Maria Yu. Suslova, Ekaterina A. Zimens, Vadim V. Blinov, Maria V. Sakirko, Valentina M. Domysheva and Olga I. Belykh
An aquatic surface microlayer covers more than 70% of the world’s surface. Our knowledge about the biology of the surface microlayer of Lake Baikal, the most ancient lake on Earth with a surface area of 31,500 km2, is still scarce. The total bacter...
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F. Virginia Pérez-Castillo, M. Catalina Alfaro-De la Torre, Rebeca Y. Pérez-Rodriguez, Francisco A. Comín Sebastián
Pág. 22 - 29
In this study, we estimated the depth profiles of nutrients in the natural wetland ?Ciénega Tamasopo? (Central Mexico) located in the Neotropic region. The concentration profiles of Corg, NT, Corg/NT ratios and isotopic composition (d13C, d15N) were dete...
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Kun Yuan, Rui Wang, Bo He, Guowei Fu, Yanwei Song, Lixin Pei, Shichao Fan and Fangyi Gao
Lagoons, significant coastal wetlands, stand out for their vital role in the cycles and transformations of phosphorus. However, the relationship between the spatial distributions of various phosphorus forms in the soil and sediments of lagoon areas remai...
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Tadeusz Malewski, Piotr Borowik, Ireneusz Olejarski, Artur Rutkiewicz, Adam Okorski and Tomasz Oszako
Afforestation of former agricultural land poses a real challenge for foresters because soil life is often severely limited by the loss of natural soil fungal diversity. In addition, former agricultural soils have low levels of fungal species typical of f...
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Arif Hussain and Khalid Al-Ramadan
Organic matter burial in the deep-sea fan sediments is an important component of the long-term carbon cycle. Although there is increasing recognition of the importance of organic matter in deep-sea sediments, a major focus has been on mudstones, commonly...
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María José De La Fuente, Carlos Gallardo-Bustos, Rodrigo De la Iglesia and Ignacio T. Vargas
For many years, the world?s coastal marine ecosystems have received industrial waste with high nitrogen concentrations, generating the eutrophication of these ecosystems. Different physicochemical-biological technologies have been developed to remove the...
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Miguel Ángel Álvarez-Vázquez, Elena De Uña-Álvarez and Ricardo Prego
Bedrock rivers, whose sedimentary geochemistry has been scarcely investigated, are suitable to test geochemical approaches in order to assess the existence and extent of human alterations in the natural abundance of rare earth elements. This work present...
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Lorie W. Staver, Jeffrey C. Cornwell, Nicholas J. Nidzieko, Kenneth W. Staver, J. Court Stevenson, Michael Owens, Walter Boynton and Leysa Lopez-Gonzalez
Tidal marsh restoration using dredged material is being undertaken in many coastal areas to replace lost habitat and ecosystem services due to tidal marsh loss. The fate of high levels of nitrogen (N) in fine-grained dredged material used as a substrate ...
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Urszula Aleksander-Kwaterczak and Dariusz Ciszewski
Heaps of waste material constitute a serious environmental problem in regions where the historical exploitation and processing of metal ores has taken place. The presented paper describes the trace metal distribution in selected heaps in the lead-zinc mi...
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Petr B. Semenov, Anfisa A. Pismeniuk, Sergei A. Malyshev, Marina O. Leibman, Irina D. Streletskaya, Elizaveta V. Shatrova, Alexander I. Kizyakov and Boris G. Vanshtein
Permafrost thawing leads to mobilization of the vast carbon pool into modern biogeochemical cycling through the enhanced release of dissolved organic matter (DOM) and production of greenhouse gases (CO2 and CH4). In this work, we focus on the study of me...
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Jerry R. Miller, Danvey Walsh and Lionel F. Villarroel
Toxic trace metals are a common and significant contaminant in riverine ecosystems, and are derived from both natural and anthropogenic sources. Determining the contributions of metals from these sources has proven difficult, in part, because physical an...
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Bo Liu, Liangwen Yao, Xiaofei Fu, Bo He and Longhui Bai
The first member of the Qingshankou Formation, in the Gulong Sag in the northern part of the Songliao Basin, has become an important target for unconventional hydrocarbon exploration. The organic-rich shale within this formation not only provides favorab...
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Ji Yoon Kim and Kwang-Guk An
This study evaluated integrative river ecosystem health using stressor-based models of physical habitat health, chemical water health, and biological health of fish and identified multiple-stressor indicators influencing the ecosystem health. Integrated ...
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Lihua Niu, Rui Chen, Yi Li, Yamei Chen, Wenlong Zhang, Huanjun Zhang and Longfei Wang
Turbidity has been one of the most typical problems in urban rivers, accompanied by eutrophication. Though the colloid is a nonnegligible factor associated with turbidity and nutrient enrichment in urban rivers, the characteristics of nitrogen enrichment...
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