内容正文:
(九)环境保护类
Passage 1
建议用时7分钟 实际用时 答案见P128
In the basement of a landmark 27-story tower in Stockholm,Petterson is hoping to sow the seeds of an indoor urban farming revolution.He is the chief executive of Plantagon,a new urban farming factory set to kick off operations in the basement of an office block in the Swedish capital.
He is by no means the first enthusiast for indoor farming,which has become increasingly fashionable in recent years.Claims for the practice of growing food in basements range from feeding people in desert environments to transforming the negative environmental effects of monoculture farming.
Plantagon’s early promises reflect this new optimism.Petterson calls the farm’s approach “agritechture”:the combination of agriculture,technology and architecture hoping to revolutionize how we live and eat.
The term may be new,but the concept isn’t.Indoor farming is made possible by agricultural technologies such as hydroponics (growing plants without soil) and aeroponics (in which plants are grown in air over containers).Food can be produced without direct sunlight or soil.
Platagon plans to grow high-value foods in a pumice-like material rather than soil.Water for the plants is measured precisely.It will also dehumidify(除湿)the air and reuse any extra water to ensure zero waste.Compared with conventional agriculture,it will need much less water to produce the same amount of crops.
Energy is also a key issue for indoor urban farms,which have to create artificial sunlight.Although advances in the efficiency of LED lights have helped bring down energy consumption in recent years,plants use only about 1 percent of the artificial light produced.This leads to a great waste of energy,most of which disappears as heat.The basement farm will capture around 70 percent of this wasted heat and pipe it into the heating system of the office block above.Oxygen produced by the plants will be sent to office workers via the building’s air conditioners.
1.What does Plantago