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Compare the expected measurements of moisture, pH and the amount of vegetation with the actual results around Noordwijk-aan-zee

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Part of our study of Noordwijk-aan-zee was to compare the expected measurements of moisture, pH and the amount of vegetation with the actual results we found. The moisture levels were found out by using a very simple moisture detector. This is a special instrument designed to tell the user how wet or how dry something is. It was prodded into the sand then it would come up on the meter telling you from one to four the moisture level. One being dry and four being wet. We thought that the moisture level would be high at first near the sea because the sand there is saturated from the seawater. Then we thought it was going to get dryer going up to the other side of the beach. From there we expected the moisture of the sand to slowly get higher and higher. This was because the further inland we went, the more vegetation we found. The amount of moisture in the slacks would have been high and in the blowouts it would have been low but there was barbed wire so we could not get close enough to test it. The expectations were mostly right, even though there were several problems with the measuring. The moisture detectors were not very reliable because they my have still been too wet or too dry from the last experiment. ...read more.


The expectations proved wrong and the sand was actually a somewhat alkaline. The amount of vegetation is an important factor regarding the sand dunes. This effects the amount of wildlife that live around the sand dunes and how much strength the sand dunes have got. We found out how much vegetation was on the sand dunes by using a white grid, which had one hundred square gaps across it. We placed the grid down on the different sites, one to six and then counted how many squares had vegetation in it. We thought that the amount of vegetation would rise from around zero by the sea to ninety-four - ninety-eight by the mature dunes. The expectations were correct. On the beach there was no vegetation whatsoever. This is because the sand is too fine and the wind is constantly blowing it away, hence not allowing any vegetation to make roots. On the fore dunes there is a lot more vegetation. This is because the sand dunes act as cover from the wind and rain. Some of the vegetation, which can be found on the fore dunes, include marram grass, which is a type of grass which needs only little food and water so they can survive easily. Other plants include goat willow, ribwort plantain and lesser hawksbit. The mature dunes are filled with hundreds of variety of vegetation. ...read more.


Conservation is insuring environment is maintained for ever, but allow for some human activity to take place. The council have done this by constructing barbed wire fences around the actual sand dunes and only allowing the public to use the footpaths provided. They have also used the honey pot technique. This means that they have attracted the public to one side of the beach, where the litter bins, deck chairs, life guard and other facilities including a restaurant are. Then the other side of the beach, can be safely maintained and preserved. It is like sacrificing one part of the beach to save the rest of it. Preservation is insuring that human activity can not change it at all. At Noordvijk-aan-Zee they have banned the sand dunes from human activity so people have to use the foot paths. This is so that constant human commotion doesn't erode them. The sand dunes in the Netherlands are unique to them because they are so important for the future of the people living there. If the sand dunes were to deteriorate then Holland's flooding problems would greaten and most of the country would be under water. Other countries such as Britain have sand dunes but in Holland they are there for the survival of the country. If this barbed wire was not here and the public were left to roam on top of the actual sand dunes without anything stopping them, then the human process of erosion would cause the sand dune to waste away. ...read more.

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