Ecological assessments of surface water bodies at the river basin level: a case study from England

2014 ◽  
Vol 186 (12) ◽  
pp. 8649-8665 ◽  
Author(s):  
Alexandra Collins ◽  
Nikolaos Voulvoulis
2012 ◽  
pp. 149-152
Author(s):  
János Fehér

In the European Region agriculture is the second largest water user after power industry cooling water use. As part of the implementation of Water Framework Directive EU Member States prepared their river basin management plans by the end of 2009 or first half of 2010, In these plans impacts of agriculture on water bodies have received attention. The detailed information elaborated in the plans by countries and river basin districts were uploaded into the WFD section of the WISE system. This database provides opportunity for multi-criteria analysis for different water types. The paper discusses the effects of agriculture on hydromorphological pressures and impacts affecting surface water bodies. It was pointed out that among the pressures affecting European surface water bodies the hydromorphological and diffuse pressures represent the highest ratios (Figure 1). Within the hydromorphological pressures affecting classified surface water bodies the ratio of pressures related to agricultural activities is low,it does not exceed 1% at European level. In case of Hungary the agriculture related river management pressures effect about 80% of the surface water bodies, which is much higher than the corresponding European average. The agricultural water abstractions affect about 10% of the Hungarian surface water bodies (Figures 2 and 3). The river and lake water bodies are impacted in significant ratio by nutrient enrichments and organic material enrichments, while in case of river water bodies the impact of organic material enrichments is also significant (Figures 4 and 5).


Author(s):  

The authors developed and presented a method of setting objectives in terms of surface water bodies’ water quality; it was elaborated and specified in accordance with the results of its application at a number of river basins. An algorithm of water/protective measures prioritizing in a river basin on the basis of water quality objectives was proposed. Practical application of the proposed approaches was illustrated by examples from the Scheme of Water Bodies; Integrated Use and Protection for the Ob River basin.


2001 ◽  
Vol 6 (3) ◽  
pp. 213-217 ◽  
Author(s):  
B. S. Daya Sagar

A notable similarity is observed between the probability distributions obtained from a data set that contains a large number of randomly situated surface water bodies and the probability distributions estimated by binomial multiplicative process. From these well conformed probability distributions, the generalised information dimensions have been computed through f-αspectra to characterise and quantify the spatial organisation of the surface water bodies. It is noticed from the investigated case study that the results tend to vary by changing the direction of bisecting process. The experimental results on spatial distribution of surface water bodies of the study area qualify that the computed generalised information dimensions for the vertical bisecting is rather uniform than that of the horizontal bisecting process.


2016 ◽  
Vol 537 ◽  
pp. 86-95 ◽  
Author(s):  
N. Colombani ◽  
D. Di Giuseppe ◽  
B. Faccini ◽  
G. Ferretti ◽  
M. Mastrocicco ◽  
...  

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