The Drainage Basin as an Historical Basis for Human Activity

2021 ◽  
pp. 101-110
Author(s):  
C. T. Smith
Keyword(s):  
Human Activity ◽  
Drainage Basin ◽  
Historical Basis

scholarly journals Ecological Potential of Geosystems on the Boundary of Forest and Steppe (Lake Baikal Drainage Basin)

2021 ◽  
Vol 36 ◽  
pp. 26-44
Author(s):  
I.N. Vladimirov ◽  
◽  
A.A. Frolov ◽  
D.V. Kobylkin ◽  
◽  
...  
Keyword(s):  
Human Activity ◽  
Lake Baikal ◽  
Drainage Basin ◽  
Ecological Factors ◽  
Climatic Conditions ◽  
Expert Assessment ◽  
Significant Extent ◽  
Natural Characteristics ◽  
Cryogenic Processes ◽  
Ecological Potential

This author’s formulation of the ecological potential of ecosystems is presented, and the approaches to its assessment are outlined. The main natural characteristics of the components of geosystems in two key areas of the central part of the Lake Baikal drainage basin are considered: the area of the Malyi Khamar-Daban Range and the territory of the Chikoi-Khilok interfluve. The main landscape-forming processes and the factors (and the indicators characterizing them) influencing the development of the biotic component of geosystems have been identified. On the basis of analyzing the natural ecological factors and the landscape-forming processes generating the ecological potential, an expert assessment is made, and the maps of the natural ecological potential of geosystems are compiled for the key study areas. Investigations showed that the territory of the central part of the Lake Baikal drainage basin on the boundary of forest and steppe landscapes are characterized by a considerable predominance of geosystems with low and moderate natural ecological potential, which is due to the severe natural-climatic conditions. For the mountain territory of the Malyi Khamar-Daban Range the relief-forming processes are the main landscape-forming processes (in addition to the climatic processes forming the regional geographical background) determining the ecological factors of development of the biota and the ecological potential as a whole: the slope, fluvial and cryogenic processes. In the areas of the Chikoi-Khilok interfluve, the central role is played by aeolian processes (deflation and accumulation) which are, to a significant extent, associated with human activity.

Enumeration and Identification of Asbestos Fibres in Water

1974 ◽  
Vol 32 ◽  
pp. 526-527 ◽  
Author(s):  
O. Mudroch ◽  
J. R. Kramer
Keyword(s):  
Water Supply ◽  
Water Samples ◽  
Drainage Basin ◽  
Lake Superior ◽  
Research Work ◽  
List Type ◽  
The West ◽  
Asbestos Fibre ◽  
Amphibole Asbestos

Approximately 60,000 tons per day of waste from taconite mining, tailing, are added to the west arm of Lake Superior at Silver Bay. Tailings contain nearly the same amount of quartz and amphibole asbestos, cummingtonite and actinolite in fibrous form. Cummingtonite fibres from 0.01μm in length have been found in the water supply for Minnesota municipalities.The purpose of the research work was to develop a method for asbestos fibre counts and identification in water and apply it for the enumeration of fibres in water samples collected(a) at various stations in Lake Superior at two depth: lm and at the bottom.(b) from various rivers in Lake Superior Drainage Basin.

Performance-based validation of the human activity profile

2007 ◽  
Author(s):  
Luci Fuscaldi Teixeira-Salmela ◽  
Sandra J. Olney ◽  
Revathy Devaraj
Keyword(s):  
Human Activity ◽  
Activity Profile

New advanced designed systems to ensure safeguard of the territory and preservation of water resources for irrigation

2020 ◽  
pp. 1-19
Author(s):  
Cinalberto Bertozzi ◽  
Fabio Paglione
Keyword(s):  
Water Management ◽  
Water Resources ◽  
Drainage Basin ◽  
Land Reclamation ◽  
Land Area ◽  
Water Board ◽  
Management Schemes ◽  
Innovative Techniques ◽  
River Po ◽  
Crop Irrigation

The Burana Land-Reclamation Board is an interregional water board operating in three regions and five provinces. The Burana Land-Reclamation Board operates over a land area of about 250,000 hectares between the Rivers Secchia, Panaro and Samoggia, which forms the drainage basin of the River Panaroand part of the Burana-Po di Volano, from the Tuscan-Emilian Apennines to the River Po. Its main tasks are the conservation and safeguarding of the territory, with particular attention to water resources and how they are used, ensuring rainwater drainage from urban centres, avoiding flooding but ensuringwater supply for crop irrigation in the summer to combat drought. Since the last century the Burana Land-Reclamation Board has been using innovative techniques in the planning of water management schemes designed to achieve the above aims, improving the management of water resources while keeping a constant eye on protection of the environment.

Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity

2019 ◽  
Author(s):  
Grant Duffy ◽  
Jasmine R Lee
Keyword(s):  
Human Activity ◽  
Native Species ◽  
Climate Scenario ◽  
Climatic Environment ◽  
Species Establishment ◽  
Suitable Habitats ◽  
Terrestrial Biodiversity ◽  
A Site ◽  
Area Expansion ◽  
Free Area

Warming across ice-covered regions will result in changes to both the physical and climatic environment, revealing new ice-free habitat and new climatically suitable habitats for non-native species establishment. Recent studies have independently quantified each of these aspects in Antarctica, where ice-free areas form crucial habitat for the majority of terrestrial biodiversity. Here we synthesise projections of Antarctic ice-free area expansion, recent spatial predictions of non-native species risk, and the frequency of human activities to quantify how these facets of anthropogenic change may interact now and in the future. Under a high-emissions future climate scenario, over a quarter of ice-free area and over 80 % of the ~14 thousand km2 of newly uncovered ice-free area could be vulnerable to invasion by one or more of the modelled non-native species by the end of the century. Ice-free areas identified as vulnerable to non-native species establishment were significantly closer to human activity than unsuitable areas were. Furthermore, almost half of the new vulnerable ice-free area is within 20 km of a site of current human activity. The Antarctic Peninsula, where human activity is heavily concentrated, will be at particular risk. The implications of this for conservation values of Antarctica and the management efforts required to mitigate against it are in need of urgent consideration.

Science Regained [1962]

2018 ◽  
Author(s):  
Pierre Aubenque
Keyword(s):  
Human Activity ◽  
Human Cognition ◽  
Human Thought ◽  
Motion Time ◽  
First Philosophy

Pierre Aubenque’s “Science Regained” (1962; translated by Clayton Shoppa) was originally published as the concluding chapter of Le Problème de l’Être chez Aristote, one of the most important and original books on Aristotle’s Metaphysics. In this essay, Aubenque contends that the impasses which beset the project of first philosophy paradoxically become its greatest accomplishments. Although science stabilizes motion and thereby introduces necessity into human cognition, human thought always occurs amidst an inescapable movement of change and contingency. Aristotle’s ontology, as a discourse that strives to achieve being in its unity, succeeds by means of the failure of the structure of its own approach: the search of philosophy – dialectic – becomes the philosophy of the search. Aubenque traces this same structure of scission, mediation, and recovery across Aristotelian discussions of theology, motion, time, imitation, and human activity.

Sign in / Sign up

Export Citation Format

Share Document