EXTRACTION OF SENSITIVE GRAIN-SIZE COMPONENT FROM THE KE PEAT DEPOSIT OF THE GONGHE BASIN AND ITS IMPLICATION FOR HOLOCENE CLIMATIC AND ENVIRONMENTAL CHANGE

2013 ◽  
Vol 33 (4) ◽  
pp. 125 ◽  
Author(s):  
Bing LIU ◽  
Heling JIN ◽  
Zhong SUN ◽  
Zhizhu SU ◽  
Shuang ZHAO ◽  
...  
Keyword(s):  
Grain Size ◽  
Environmental Change ◽  
Peat Deposit ◽  
Climatic And Environmental Change ◽  
Gonghe Basin

Response of Erosion to Environmental and Climate Changes During the Anthropocene Within the Endorheic System of Mhabeul, Southeastern Tunisia

2022 ◽  
pp. 217-234
Author(s):  
Elhoucine Essefi ◽  
Soumaya Hajji
Keyword(s):  
Heavy Metals ◽  
Grain Size ◽  
Magnetic Susceptibility ◽  
Environmental Change ◽  
Clustering Techniques ◽  
The Holocene ◽  
Intrinsic Parameters ◽  
The Core ◽  
Age Model ◽  
Climatic And Environmental Change

This chapter aimed to investigate the record of climatic and environmental change in the sedimentary filling of sebkha Mhabeul and their effect on hydric and eolian erosion within the wetland and its watershed. Along a 37 cm core, the sedimentary, geochemical, and geophysical signals at the Holocene-Anthropocene transition were followed. Sampling was carried out each 1 cm to obtain 37 samples. All studied parameters and clustering techniques indicate that the first 7 cm represent the Anthropocene strata. According to the age model, this upper part of the core records the last 300 yrs. The sedimentary record of the Anthropocene is marked by an increasing rate of sedimentation, grain size fining, heavy metals (Pb, Cu, Ni, Mn, and Fe) enrichment, which is related to increased erosion. Other intrinsic parameters such as CE, pH, Na, K, and CaCO3 enhance sediment erodibility. The measurement of the magnetic susceptibility along a 37 cm core collected from the sebkha Mhabeul shows an obvious upward increase related to a high content of heavy metals for the first 7 cm.

The land enriches the soul: On climatic and environmental change, affect, and emotional health and well-being in Rigolet, Nunatsiavut, Canada

2013 ◽  
Vol 6 ◽  
pp. 14-24 ◽  
Author(s):  
Ashlee Cunsolo Willox ◽  
Sherilee L. Harper ◽  
Victoria L. Edge ◽  
Karen Landman ◽  
Karen Houle ◽  
...  
Keyword(s):  
Environmental Change ◽  
Emotional Health ◽  
Well Being ◽  
Climatic And Environmental Change ◽  
Health And Well Being

scholarly journals The Ecology of Fencing

Africa ◽  
2008 ◽  
Vol 78 (2) ◽  
pp. 153-156 ◽  
Author(s):  
Michael J. Sheridan
Keyword(s):  
Social Science ◽  
Environmental Change ◽  
Social Relationships ◽  
Natural Science ◽  
Present Issue ◽  
Climatic And Environmental Change

In the autumn of 2004, a remarkable gathering of 102 scholars took place at St Antony's College, Oxford: they had come for an interdisciplinary symposium on ‘Trees, rain, and politics in Africa: the dynamics and politics of climatic and environmental change’. Symposium papers were grouped into panels that focused on either particular resources (such as trees and water) or particular aspects of social relationships (such as politics and discourses). This format resulted in a series of dialogues between the natural science and social science paradigms, and this first half of the present issue of Africa takes as its theme just one of those interdisciplinary conversations. Taken together, these authors demonstrate how the hybridization of natural science and social science can benefit understandings of the African past, interpretations of the African present and planning for the African future.1

scholarly journals Cliff-front aeolian and colluvial deposits, Mallorca, Western Mediterranean: a record of climatic and environmental change during the last glacial period

2001 ◽  
Vol 48 ◽  
pp. 217-232
Author(s):  
Lars B. Clemmensen ◽  
Thomas Lisborg ◽  
Richard G. Bromley ◽  
Joan J. Fornós
Keyword(s):  
Environmental Change ◽  
Environmental Changes ◽  
Western Mediterranean ◽  
Glacial Period ◽  
Last Glacial Period ◽  
Last Glacial ◽  
Aeolian Deposits ◽  
Climatic And Environmental Change ◽  
Sea Cliff ◽  
The Last Glacial

Large, cliff-front accumulations of Late Pleistocene aeolian and colluvial deposits on southeast Mallorca provide a terrestrial record of climatic and environmental change in the Western Mediterranean during the last glacial period. The cliff-front deposits are lithified and form ramps sloping toward the southeast (i.e. seaward). Radiocarbon dating suggests that the deposits formed in Oxygen Isope Stage 3, when sea level was about 50 m lower than today, and the fossil sea-cliff situated 1.5 to 2 km from the palaeo-shore. The aeolian deposits are composed of marine carbonate sand that was transported inland episodically and accumulated in embayments along the fossil sea-cliff. The sand initially formed steadily growing and forward-moving dunes, then sloping sand ramps and finally relatively small ascending dunes. Aeolian accumulation was interrupted by erosion and colluvial ramp formation, and the cliff-front sediments can be divided into two sedimentary cycles each composed of basal colluvial deposits overlain by aeolian deposits. Colluvial deposition probably records relatively humid climatic intervals, whereas aeolian accumulation probably reflects relatively arid climatic intervals. It appears that climatic and environmental changes were rapid, and it is speculated that the dynamics of the cliff-front system on Mallorca were tied to North Atlantic millennial-scale climate oscillations.

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