题型:阅读理解 题类:常考题 难易度:普通
山东省枣庄市薛城区2020-2021学年高二下学期英语期中考试试卷
The planting or woodlands in upland areas could play a key role in preventing the flooding which has increasingly affected communities across the world in recent years.
A new study by the University of Plymouth has shown that within just 15 years of being planted, native broadleaf trees can have a great effect on soil's response during extreme weather events. It means that the huge amount of rainwater can be more readily absorbed, rather than simply running over the surface and into rivers where it probably causes severe flooding.
Scientists say their findings show planting more native woodlands in upland areas could be an effective and natural flood management tool. There have been a number of extreme rainfall and flooding events in recent years, and they are predicted to increase in both frequency and seriousness in the future as a result of human-caused climate change.
They show that in areas where new woodlands have been planted, the ability of soil to absorb water is almost double that of areas with no trees, associated with increases in soil macro-pores- (大孔隙) and reductions in soil compaction (压实) . This means the speed at which rainwater enters rivers during rainfall events is obviously reduced, which helps lower peak flow.
However, the nature of the soil and location of the woodlands are also critical to their success, with steep hillside on the edge of upland areas providing the most effective location for tree plantations to serve as an effective flood prevention tool.
Dr Paul Lunt, Associate Professor in Environmental Science added, "There are a lot of weak upland catchment (集水) areas across the UK. However, by working with farmers and the government's farm woodland measures, this study has shown that damaged soil can recover rapidly. This is particularly obvious on hillsides which are traditionally not so good for farming. So there is an opportunity for a joined-up approach which could benefit the uplands themselves, but also those people living on and around them."
Who are we and what do we do?
Since National Theatre Live was launched in June 2009, we've broadcast more than forty productions live, from both the National Theatre and other theatres in the UK.
Our broadcasts have now been experienced by over 5.5 million people in over 2,000 venues around the world, including over 650 venues in the UK alone. Past broadcasts from the National Theatre have included Danny Boyles' Frankenstein with Benedict Cumberbatch and Jonny Lee Miller, War Horse; Man and Superman with Ralph Fiennes.
Broadcasts from other UK theatres include Coriolanus from the Donmar Warehouse; Macbeth from the Manchester International Festival; Our biggest single broadcast to date is Hamlet with Benedict Cumberbatch at the Barbican, which has been seen by over 550,000 people.
How do we do it?
Though each broadcast is filmed in front of a live audience in the theatre, cameras are carefully positioned throughout the theatre to ensure that cinema audiences get the “best seat in the house” view of each production.
Where can you find us?
The nearest venue to you is Emei 1958 Cinema, located at No. 360 Qingjiang Road East, Chendu, China.
What's on?
The Deep Blue Sea Helen McCrory returns to the National Theatre in Terence Rattigan's masterpiece. Time: 3 p. m. Sunday 25 June, 2017 Venue: Emei 1958 Cinema Price: 120 RMB | |
Man and Superman Academy Award® nominee Ralph Fiennes plays Jack Tanner in this exciting reinvention of Shaw's classic. Time: 3 p. m. Sunday 23 July, 2017 Venue: Emei 1958 Cinema Price: 120 RMB |
Clicking “Book Now” will take you through to a third party site where you can complete your booking.
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