Water on the Land 0.0 / 5 ? GeographyWater and riversGCSEAQA Created by: Qiao-ChuCreated on: 17-03-13 14:01 Channel part of river valley occupied by water 1 of 43 Hydraulic action power of the volume of water moving in the river 2 of 43 Abrasion larger load hits beds and banks 3 of 43 Attrition load in river knocks into other load 4 of 43 Solution dissolving rocks soluble in rainwater - transportation and erosion 5 of 43 Load material carried by river 6 of 43 Traction rolling of large heavy material along bed 7 of 43 Saltation bouncing of smaller load along river bed 8 of 43 Suspension small material carried within river 9 of 43 Long profile course of river from source to mouth 10 of 43 Cross profile cross section across a river valley 11 of 43 Waterfall sudden vertical drop of a river 12 of 43 Gorge narrow steep-sided valley 13 of 43 Meander bend or curve in river channel 14 of 43 Oxbow lake semi-circular area that represent the former course of the meander 15 of 43 Floodplain flat area adjacent to river channel 16 of 43 Levees raised banks of rivers in lower course 17 of 43 Discharge volume of water passing at any point in river at any time 18 of 43 Drainage basin area from which a river gets its water, imaginary watershed line 19 of 43 Flood hydrograph line graph showing discharge after period of rain 20 of 43 Flashy hydrograph responding quickly to rain, high peak and short lag time 21 of 43 Relief height and slope of land 22 of 43 Impermeable rock that does not allow water in 23 of 43 Porous rock with spaces between particles 24 of 43 Pervious rock that allows water along bedding planes and down joints 25 of 43 Deforestation cutting down of trees 26 of 43 Urbanisation increase in proportion of people living in cities 27 of 43 Floods water in the river overflows 28 of 43 Hazard an event that threatens people's lives and damages property 29 of 43 Soil erosion removal of a layer of soil above rock where plants grow 30 of 43 Hard engineering use of technology to control rivers 31 of 43 Soft engineering work with natural system of rivers to constrain it 32 of 43 Multi-purpose project large scale venture with more than one aim 33 of 43 Straightening meanders river follows an artificially more direct course 34 of 43 Floodplain zoning controlling building on floodplains so area at risk of flooding have low land use 35 of 43 Economic costs and finances from individuals to government 36 of 43 Social people's health, lifestyle, community etc. 37 of 43 Environmental impact on surroundings, land, water, air 38 of 43 Water stress amount of water available does not meet amount required 39 of 43 Areas of deficit rainfall does not provide water permanently 40 of 43 Area of surplus area with more water than is needed 41 of 43 Sustainable ensuring water is long term and can be maintained without damaging environment 42 of 43 Conservation thoughtful use of resources, managing landscape to protect ecosystem and culture 43 of 43
Comments
Report