scholarly journals Vegetation grows more luxuriantly in Arctic permafrost drained lake basins

2021 ◽  
Author(s):  
Yating Chen ◽  
Aobo Liu ◽  
Xiao Cheng
Keyword(s):  
Lake Basins

Tejo 1– An Interactive Program for the Division of Estuaries into Homogeneous Areas

1987 ◽  
Vol 19 (9) ◽  
pp. 43-51 ◽  
Author(s):  
A. S. Câmara ◽  
M. Cardoso da Silva ◽  
L. Ramos ◽  
J. Gomes Ferreira
Keyword(s):  
Water Quality ◽  
Computer Program ◽  
Heuristic Algorithm ◽  
Management Model ◽  
Interactive Program ◽  
Basin Management ◽  
Interactive Computer Program ◽  
Lake Basins

The division of an estuary into homogeneous areas from both hydrodynamic and ecological standpoints is essential to any estuarine basin management model. This paper presents an approach based on a heuristic algorithm to achieve such a division. The methodology implemented through an interactive computer program named Tejo 1 applies morphological, water quality and management criteria in order to achieve the disaggregation. The approach is equally applicable to river or lake basins, with only minor adaptations. An application of Tejo 1 to the Tejo estuary is included for illustrative purposes, which resulted in the final division of the estuary into 11 homogeneous areas.

DEVELOPMENT OF SAND-BODY RESERVOIRS IN FAULT-BOUNDED LAKE BASINS: PLEISTOCENE-HOLOCENE POYANG LAKE, EASTERN CHINA

2017 ◽  
Author(s):  
Chenlin Hu ◽  
◽  
Yuanfu Zhang ◽  
Yuanfu Zhang ◽  
Yuanfu Zhang ◽  
...  
Keyword(s):  
Poyang Lake ◽  
Eastern China ◽  
Sand Body ◽  
Lake Basins

scholarly journals Influence of Anthropogenic Loads on Surface Water Status: A Case Study in Lithuania

2021 ◽  
Vol 13 (8) ◽  
pp. 4341
Author(s):  
Laima Česonienė ◽  
Daiva Šileikienė ◽  
Vitas Marozas ◽  
Laura Čiteikė
Keyword(s):  
Total Nitrogen ◽  
Water Status ◽  
Arable Land ◽  
Ecological Status ◽  
Water Bodies ◽  
Agricultural Pollution ◽  
Good Ecological Status ◽  
Water Catchment ◽  
Lake Basins

Twenty-six water bodies and 10 ponds were selected for this research. Anthropogenic loads were assessed according to pollution sources in individual water catchment basins. It was determined that 50% of the tested water bodies had Ntotal values that did not correspond to the good and very good ecological status classes, and 20% of the tested water bodies had Ptotal values that did not correspond to the good and very good ecological status classes. The lake basins and ponds received the largest amounts of pollution from agricultural sources with total nitrogen at 1554.13 t/year and phosphorus at 1.94 t/year, and from meadows and pastures with total nitrogen at 9.50 t/year and phosphorus at 0.20 t/year. The highest annual load of total nitrogen for lake basins on average per year was from agricultural pollution from arable land (98.85%), and the highest total phosphorus load was also from agricultural pollution from arable land (60%).

Filling process and filling characteristic analysis of Paleogene Baxian sag in Bohai Bay basin, China

2020 ◽  
pp. 1-21
Author(s):  
Zili Zhang ◽  
Xiaomin Zhu ◽  
Ruifeng Zhang ◽  
Sheng Fu ◽  
Jing Zhang
Keyword(s):  
Tectonic Evolution ◽  
Oil And Gas ◽  
Sedimentary Facies ◽  
Flood Plain ◽  
Alluvial Fan ◽  
Evolution Process ◽  
Bohai Bay ◽  
Characteristic Analysis ◽  
Sequence Boundaries ◽  
Lake Basins

In addition to core, logging, and other previous research results, this paper determines the fault development and tectonic evolution process of the Baxian sag with the Paleogene rift stage based on 3D seismic data. The Paleogene tectonic evolution of the sag can be divided into three episodes and six evolution stages, and three types of faults are identified: intensely active normal, active normal, and weakly active normal. One first-order sequence, three second-order sequences, and fourteen third-order sequences of the Paleogene Baxian sag were created, and fifteen sequence boundaries were recognised. According to the rifting background and sedimentary facies development characteristics of each episode, five combination types of the depositional system associations were identified, including alluvial fan-fluvial and braided-delta-lacustrine in an early rifting episode, delta-lacustrine and nearshore subaqueous fan-lacustrine in the middle rifting episode, and fluvial-flood plain in the late rifting episode. Six response models of filling and the evolution process in Paleogene Baxian sag were concluded. The multi-episodes tectonic cycles of faulted lake basins resulted in complex paleogeomorphology and variable provenance supply, forming abundant sequence structure patterns and different filling and evolution processes of faulted lake basins. The stable rifting stage is favourable to form and preserve high-quality source rock, and develop various sedimentary facies and sandbody types, which is a potential area for exploration of a lithologic stratigraphic oil and gas reservoir.

scholarly journals Taxon-related pollen source areas for lake basins in the southern Alps: an empirical approach

2006 ◽  
Vol 15 (4) ◽  
pp. 263-272 ◽  
Author(s):  
Marco Conedera ◽  
Willy Tinner ◽  
Sara Crameri ◽  
Damiano Torriani ◽  
Anne Herold
Keyword(s):  
Southern Alps ◽  
Empirical Approach ◽  
Source Areas ◽  
Lake Basins

Late Quaternary seasonal process variations in lake basins on the NE Tibetan Plateau

2021 ◽  
Vol 252 ◽  
pp. 106736
Author(s):  
Dada Yan ◽  
Bernd Wünnemann ◽  
Georg Stauch ◽  
Yongzhan Zhang ◽  
Hao Long
Keyword(s):  
Tibetan Plateau ◽  
Late Quaternary ◽  
Process Variations ◽  
Ne Tibetan Plateau ◽  
Lake Basins

scholarly journals IV.—Notes on some small Lake-basins in the Lepontine Alps

1898 ◽  
Vol 5 (1) ◽  
pp. 15-21
Author(s):  
T. G. Bonney
Keyword(s):  
Small Lake ◽  
The Alps ◽  
Lepontine Alps ◽  
Lake Basins ◽  
Geological Magazine

Rock-Basins have been getting out of favour of late. The “heckling” which they have suffered from my friend Mr. Marr tempts one to echo Betsy Prig's classic remark about Mrs. Harris. Mr. Brend, however, though “dealing faithfully” with them in the September number of the Geological Magazine, does permit one or two to exist on sufferance, so that I feel minded, were it only as an act of charity to these depreciated securities, to describe two or three examples in the Alps which I think must be true rock-basins.

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