scholarly journals Anthropogenic changes in the fluxes to estuaries: Wastewater discharges compared with river loads in small rias

2016 ◽  
Vol 179 ◽  
pp. 112-123 ◽  
Author(s):  
Miguel Angel Álvarez-Vázquez ◽  
Ricardo Prego ◽  
Natalia Ospina-Alvarez ◽  
Miguel Caetano ◽  
Patricia Bernárdez ◽  
...  
Keyword(s):  
Anthropogenic Changes ◽  
River Loads

Natural and Anthropogenic Changes in the Soils and Environment of the Moskva River Floodplain in the Holocene: Pedogenic, Palynological, and Anthracological Evidences

2018 ◽  
Vol 51 (6) ◽  
pp. 613-627
Author(s):  
A. L. Aleksandrovskii ◽  
E. G. Ershova ◽  
E. V. Ponomarenko ◽  
N. A. Krenke ◽  
V. V. Skripkin
Keyword(s):  
Anthropogenic Changes ◽  
River Floodplain ◽  
The Holocene ◽  
Moskva River

scholarly journals Has erosion globally increased? Long-term erosion rates as a function of climate derived from the impact crater inventory

2018 ◽  
Author(s):  
Stefan Hergarten ◽  
Thomas Kenkmann
Keyword(s):  
Time Scale ◽  
Impact Crater ◽  
Regional Effect ◽  
Tropical Zone ◽  
Erosion Rates ◽  
Continental Scale ◽  
River Loads ◽  
The Impact

Abstract. Worldwide erosion rates seem to have increased strongly since the beginning of the Quaternary, but there is still discussion about the role of glaciation as a potential driver and even whether the increase is real at all or an artefact due to losses in the long-term sedimentary record. In this study we derive estimates of average erosion rates on the time scale of some tens of million years from the terrestrial impact crater inventory. This approach is completely independent from all other methods to infer erosion rates such as river loads, preserved sediments, cosmogenic nuclides and thermochronometry. Our approach yields average erosion rates as a function of present-day topography and climate. The results confirm that topography accounts for the main part of the huge variation of erosion on Earth, but also identifies a significant systematic dependence on climate in contrast to several previous studies. We found a fivefold increase in erosional efficacy from the cold regimes to the tropical zone and that temperate and arid climates are very similar in this context. Combining our results to a worldwide mean erosion rate we found that erosion rates on the time scale of some tens of million years are at least as high as present-day rates and suggest that glaciation has a rather regional effect with a limited impact at the continental scale.

Hydrogeomorphic Ecosystem Responses to Natural and Anthropogenic Changes in the Loess Plateau of China

2017 ◽  
Vol 45 (1) ◽  
pp. 223-243 ◽  
Author(s):  
Bojie Fu ◽  
Shuai Wang ◽  
Yu Liu ◽  
Jianbo Liu ◽  
Wei Liang ◽  
...  
Keyword(s):  
Loess Plateau ◽  
The Loess Plateau ◽  
Anthropogenic Changes ◽  
Ecosystem Responses

scholarly journals The silica-carbon biogeochemical cycle in the Bohai Sea and its responses to the changing terrestrial loadings

2016 ◽  
Author(s):  
Jun Liu ◽  
Lex Bouwman ◽  
Jiaye Zang ◽  
Chenying Zhao ◽  
Xiaochen Liu ◽  
...  
Keyword(s):  
Primary Production ◽  
Water Column ◽  
Yellow Sea ◽  
Bohai Sea ◽  
Critical Role ◽  
The Yellow Sea ◽  
Organic C ◽  
Riverine Input ◽  
The Bohai Sea ◽  
River Loads

Abstract. Silicon (Si) and carbon (C) play key roles in the river and marine biogeochemistry. The Si and C budgets for the Bohai Sea were established on the basis of measurements at a range of stations and additional data from the literature. The results show that the spatial distributions of reactive Si and organic C (OC) in the water column are largely affected by the riverine input, primary production and export to the Yellow Sea. Biogenic silica (BSi) and total OC in sediments are mainly from marine primary production. The major supply of dissolved silicate (DSi) comes from benthic diffusion, riverine input alone accounts for 17 % of reactive Si inputs to the Bohai Sea; the dominant DSi removal from the water column is diatom uptake, followed by sedimentation. Rivers contribute 47 % of exogenous OC inputs to the Bohai Sea; the dominant outputs of OC are sedimentation and export to the Yellow Sea. The net burial of BSi and OC represent 3.3 % and 1.0 % of total primary production, respectively. Primary production has increased by 10 % since 2002 as a result of increased river loads of DSi and BSi. Our findings underline the critical role of riverine Si supply in primary production in coastal marine ecosystems.

Freshwater mussel shells (Unionidae) describe anthropogenic changes to trace element cycling within a North American river

2018 ◽  
Vol 616-617 ◽  
pp. 1066-1076 ◽  
Author(s):  
W. Aaron Wilson ◽  
Andrea K. Fritts ◽  
Mark W. Fritts ◽  
Jason M. Unrine ◽  
Brent N. Tweedy ◽  
...  
Keyword(s):  
Trace Element ◽  
North American ◽  
Freshwater Mussel ◽  
Element Cycling ◽  
Anthropogenic Changes ◽  
American River ◽  
Mussel Shells

Study of factors influencing the transformation of mountain geosystems on the southern slope of the Greater Caucasus

2021 ◽  
Vol 07 (02) ◽  
pp. 75-77
Author(s):  
Zeynəb Zəkəriyyə qızı Qurbanzadə ◽  
Keyword(s):  
Key Words ◽  
Ecological Study ◽  
Southern Slope ◽  
The South ◽  
Anthropogenic Changes ◽  
Greater Caucasus ◽  
Factors Influencing ◽  
South Slope

In the article touched such issues as anthropogenic changes in the landscapes of the south slope of the Greater Caucasus, ecological study of enviromental impact, landscape optimization. There are also suggestions for more efficient use of rapidly growing anthropogenically affected landscapes. Key words: anthropogenic changes, Greater Caucasus, south slope, optimization, landscape Azərbaycanın şimal-şərq hissələrini əhatə edən təbii iqlim şəraiti, heyvanat və bitki aləminə, turizm və istirahət üçün əvəzolunmaz məziyyətlərinə, həm də zəngin yeraltı sərvətlərinə görə respublikamızın nadir ərazilərindən biri olan Böyük Qafqazın cənub yamacı getdikcə daha da intensivləşən antropogen təsirlərə məruz qalan bir tədqiqat obyekti kimi nəzəri cəlb edir.

About this title - Geoethics: Status and Future Perspectives

10.1144/sp508 ◽  
2021 ◽  
Vol 508 (1) ◽  
pp. NP-NP
Author(s):  
G. Di Capua ◽  
P. T. Bobrowsky ◽  
S. W. Kieffer ◽  
C. Palinkas
Keyword(s):  
Common Ground ◽  
Decision Makers ◽  
Ethical Framework ◽  
Global Ethics ◽  
Social Scientists ◽  
Anthropogenic Changes ◽  
The Earth ◽  
Cultural Implications ◽  
Significant Step ◽  
Additional Service

This is the second volume focused on geoethics published by the Geological Society of London. This is a significant step forward in which authors address the maturation of geoethics. The field of geoethics is now ready to be introduced outside the geoscience community as a logical platform for global ethics that addresses anthropogenic changes. Geoethics has a distinction in the geoscientific community for discussing ethical, social and cultural implications of geoscience knowledge, research, practice, education and communication. This provides a common ground for confronting ideas, experiences and proposals on how geosciences can supply additional service to society in order to improve the way humans interact responsibly with the Earth system. This book provides new messages to geoscientists, social scientists, intellectuals, law- and decision-makers, and laypeople. Motivations and actions for facing global anthropogenic changes and their intense impacts on the planet need to be governed by an ethical framework capable of merging a solid conceptual structure with pragmatic approaches based on geoscientific knowledge. This philosophy defines geoethics.

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