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Some trees may be rejuvenated by pollarding – for example, Bradford pear (Pyrus calleryana 'Bradford'), a flowering species that becomes brittle and top-heavy when older. [ citation needed ] Oaks, when very old, can form new trunks from the growth of pollard branches; that is, surviving branches which have split away from the main branch ...
A Robel pole is a device consisting of a 1 to 2 m (3 ft 3 in to 6 ft 7 in) vertical pole possessing alternating horizontal bands and a 4 m (13 ft) line of rope or cord. It is used by range ecologists, field biologists and other scientists to measure the density of vegetation and to quantify the volume of ground cover in a particular habitat ...
Row covers can reduce the drying effect of wind, and can provide a small amount of warming in a similar way to unheated cold frames, greenhouses and polytunnels, creating a microclimate for the plants. The first commercial-scale use of polyethylene row covers in the US was in the 1950s, and by the 1980s their use was widespread. [1]
Bollards may also be used to enclose car-free zones. Bollards and other street furniture can also be used to control overspill parking onto sidewalks and verges. [11] Bollards can be temporary and portable, such as this traffic control bollard separating the road from the worksite.
A road verge is a strip of groundcover consisting of grass or garden plants, and sometimes also shrubs and trees, located between a roadway and a sidewalk. [1] Verges are known by dozens of other names such as grass strip , nature strip , curb strip , or park strip , the usage of which is often quite regional.
In its first planned phase, the plant — which could be in the U.S. or Canada — should produce around 80,000 tons of synthetic graphite annually by 2030, or enough to supply around 1.5 million EVs.
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