What does natural mean?Natural means existing in or caused by nature; not made or caused by humankind. What do you mean by non-natural/ man made?Not of natural origin; prepared or made artificiallyHow will we assess the level of natural?
Natural River PangThere are many natural features such as green plants and trees which indicate that it hasn’t been affected by man. There’s also the natural meander. There is an intercept with man-made features. (Tidmarsh)
Man Made River Pang
In this area you can see that it is affected by man because there is a road built next to the river and all green plants and trees have been cut down and also there is less space for the river to flood. There’s also a concrete river bed so that vehicles can pass through the river since it is not deep. This shows clearly that the natural features meet the man-made features in the river pang (Bucklebury Ford)
IntroductionRiver Pang is a small chalk stream river in the west of the English county of Berkshire, and a tributary of the River Thames. The river Pang is also a river which can be very dry in summer time because there is very little water in the river unless it is a rainy season and if it rains a lot there could be floods and draughts in river Pang. The river pang is 19 miles long. We are going to find many natural features because the river is very natural and there are various changes in speed as the river is flowing down.
There’s also many man made features which can be spotted near the river Pang such as bridges built for people to cross over the river. I think that I will also see many meanders and rapids. I will also see wide flood plains going down the river because the river would be naturally made to stop floods. I might also spot that the stone size changes near the river banks. The river’s velocity will increase as we go down the river because there is going to be more water closer to the end of the river.
There is quite a gap between Bradfield and Bucklebury.
In our field trip we stopped at :1. New Farm2. Frilsham3. Bucklebury Ford4. Bradfield5. Tidmarsh 1 & 26. Pangbourne
The width and perimeter was found by using a measuring tape and pulling it from one river bank to another to find the width but the depth was found by using a measuring stick and it had a half a metre interval. We found out the wetted perimeter by using a measuring tape from one river bank to another.
This is how the measuring poles are used to get the width and depth of the river.
Measured travelling speed of water in 10m per second. Tennis ball used to find the velocity of the river. We only dropped the ball to find the speed of the water in some places. Although this wasn’t accurate since the ball got stuck in weed and it only gave us the flow of water on the top of the river.
very angular angular sub-angularsub-rounded rounded
very roundedThe stones are larger in the water than the stones that are moved away from the water.
Clinometers are measuring devices also known as an inclinometer, the essential function of the device is to determine accurate measurements as they relate to sloping, height and distance. This device was used 10m apart from the poles and we took the reading from an angle which gave the readings in degrees. Since river Pang was a flat land river we didn’t get any readings because there was no slope. After all measurements are made and numbers are crunched, the river flow can be classified.
Data presentation & analysis
Many man-made features could be seen here, this was because the water flow in this area had been slowed down. Many man-made features could be seen here, this was because the water flow in this area had been slowed down.
Evaluation & ConclusionIn our investigation I found that there were many weaknesses and many things that went right as we expected them to be. In the investigation the 5 stops we stopped at were New Farm, Frilsham, Bucklebury Ford, Bradfield and Tidmarsh 1 & 2. By the results we got I found out that river Pang was heavily affected by man and only a few areas of it was natural.
This was due to the farming going around the river and also because there were many roads and building next to the river. In the study we did about river pang the conditions weren’t very good because it had rained a lot and the river water level had increased rapidly due to the huge amount of rain water. There were many weaknesses because the apparatus we used weren’t very good so our results weren’t very reliable, that is why we had to use the results from last year and these results also showed results as we predicted them to be.
I also found velocity of the river was slowed down by many manmade features but there were some features such as straight channels closer to the end of the river, this showed us that there was a faster flow of water. We also found that man had made narrow channels to speed up the water flow. There is also the factor where the water level in the river will increase in the winter because there are no leaves in the trees and it increases in the summer when all the trees have leaves on them which is rate of interception.
I also found out that there was more man influence closer to the end of the river. In our study there was also the factor where we found out that the farmers had cut paths for the river water to flow and to divide the river channels. This was due to the river water flooding the river banks. To improve the investigation there could have been more dependable apparatus’s to gain the results we needed.
Also to see if the results were reliable we could have compared with the results from last year. The weather and conditions we went out for our investigation, so if there were much better conditions our experiments would have developed much better results. There is also the need to go and do the field work at different times of the year and we should also have done more stops to get much more reliable, accurate results and to make it a fair test. Although there are natural features in every part you can see a man affected area in river pang.