The Role of Place-specific Dynamics in the Destabilization of the Danish Water Regime

2017 ◽  
pp. 86-105
Author(s):  
C. F. Fratini ◽  
J. S. Jensen
Keyword(s):  
2013 ◽  
Vol 12 (1) ◽  
pp. 43-70 ◽  
Author(s):  
Seif Da'Na

This paper questions the ecological sustainability of the Zionist colonial scheme in Palestine. It outlines an ecologically-based narrative of the Arab-Israeli struggle by juxtaposing colonial Zionism and ecological Zionism to re-narrate the Arab-Israeli conflict using a recent interpretive mode that assumes as a principle concomitant environmental and colonial histories. Examining both the role of water in the history of the Zionist colonial scheme and Zionist agricultural practices, it argues that, similar to previous colonial European ventures, the sustainability of colonial Zionism is challenged by both Palestine's scarce hydrological resources and their mounting exploitation, spawning what I call the ‘inner tension of Zionism’. Given this dialectic of Zionism – that considering, among other things, the nature of Zionist colonial agriculture and settlers’ Western life style, the necessary increasing exploitation of Palestine's scarce resources challenges the sustainability of the colonial venture – the hydrological challenge, entwining with nationalist conflict, constitutes Zionism's second contradiction.11 Due to size limits and nature of this paper, I deal only with the first stage, 1882–1967. I deal with the next stage, 1967 and thereafter, elsewhere, although the typology employed for the distinction between stages is outlined below.


2010 ◽  
Vol 4 (Special Issue 2) ◽  
pp. S93-S101 ◽  
Author(s):  
J. Buchtele ◽  
M. Tesař ◽  
P. Krám

The water regime variability in most catchments is frequently influenced not only by the changes of the vegetation cover in the annual cycle but also by its development in the time span of decades. That means that the resulting evapotranspiration depends not only on the actual climatic situation but also on the soil moisture. The simulations of the rainfall-runoff process have been used with the intention to follow the possible role of the developing land cover. The differences between the observed and simulated flows in relatively long periods can be considered as an appropriate tool for the assessment of the water regime changes, in which the evapotranspiration demand variability is a significant phenomenon.


Author(s):  

Currently existed special features of the water regime, namely the role of flood runoff in its formation in the rivers of European Russia has been considered. Changes of characteristic data and maximal water discharge rates for thaw and rain floods, as well as runoff volumes for each phase of the hydrological year has been demonstrated on the basis of the hydrograph split by the genetic components. It has been shown that the winter period meteorological characteristics changes reflects on the formation of low water a flood water contents during thaws. This, in turn, affected the whole within-year distribution of the runoff, thus causing the noticeable transformation of typical hydrograph of the most of the rivers of European Russia.


Ground Water ◽  
1985 ◽  
Vol 23 (6) ◽  
pp. 795-801 ◽  
Author(s):  
Stephen S. D. Foster ◽  
Ann T. Ellis ◽  
Marcelino Losilla-Penon ◽  
Hugo V. Rodriguez-Estrada
Keyword(s):  

2020 ◽  
Vol 53 (1) ◽  
pp. 137
Author(s):  
Zenoviy Pankiv ◽  
Taras Yamelynets

<p>In the humid conditions, the most common ground forms are the ferruginous ones: ferrum concretions, marsh ore, ocher spots, etc. Mollic gley soils are widely spread along the periphery of marshes and are formed under the influence of mollic and gley processes on various soil-forming rocks under conditions of sporadically pulsating water regime and excessive moisture under the meadow and swamp biocenoses. The ferrum concretions are characteristic of all genetic horizons of mollic gley soils, except for the soil-forming rock, and their content ranges from 3.3% in the mollic to 47.1% in the lower transitional horizon. The gross iron content in the fine mollic gley soils, as well as in the ferrum concretions forms, increases with depth, and the maximum values are characteristic of the lower transition horizon. The lowest values of the gross iron content are characteristic of the fine soil-forming rock (16.0 mg / 100 g soil) and the mollic soil (66.4 mg / 100 g soil). It was established that the gross chemical content of the ferrum concretions forms is dominated by the iron oxides with the highest content in the ferrum concretions of the mollic soils (48.75%). Also the ferrum concretions forms of iron are characterized by a rather high content of aluminum oxides (5.59–7.92%). The highest values of the accumulation coefficient are characteristic of the iron oxide (Kx = 7.21–2.58), which confirms the hypothesis of the dominant role of its compounds in the formation of the ferrum concretions forms.</p>


2016 ◽  
Vol 21 (2) ◽  
Author(s):  
Agung B. Supangat ◽  
Paimin Paimin

In Indonesia it was identified that there were much of polluted stream flow which cause improper consumed water. One of the rivers which has low of water qualities is Citarum River, West Java. However, along the Citarum river, there were built three reservoir dams (Saguling, Cirata and Jatiluhur) that can control the condition of river water regime. Research was conducted in Citarum watershed to determine the role of those reservoirs on water quality control. Seven stations along the river were selected as observation posts of water samples. Based on the observation results it was indicated that water pollutants within Citarum river was very high. However, those pollutants could be purified or reduced by those reservoirs, hence water discharge from the reservoirs has better quality. In the future, deposition of those pollutants within the dam may has negative environment impact. Therefore, to sustain that function of the dam, comprehensive efforts on reducing pollutants from the catchment area is urgently required.


1994 ◽  
Vol 45 (8) ◽  
pp. 1469 ◽  
Author(s):  
N Rea ◽  
GG Ganf

The reproductive characteristics of T. procerum in three lagoons in the Mediterranean south-east of South Australia were used to investigate the role of water regime in the often heterogeneous and patchy distribution of aquatic vegetation. A theoretical explanation for these patterns, based on sexual reproduction vis-a-vis seedling establishment, is proposed. Owing to the unpredictable nature of seed dispersal and the narrow range of suitable conditions for germination and establishment that result from fluctuating and variable water levels, establishment events are spatially and temporally dynamic. These features may be important for maintaining species distribution, species survival and habitat diversity. Population resilience through genetically heterogeneous stands is another outcome. The implications of sexual reproduction by clonal plants are discussed, as is the need to maintain the conditions that plants need to flower, germinate and become established. The unpredictable nature of establishment events makes them difficult to manage. Regulation and pondageldrainage may be having a profound effect on the survival of many aquatic plant species owing to their inability to regenerate under such conditions.


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