past 30 years, and suggest that cities are cruelly destroying

　　surrounding rural land and rapidly reducing the amount of

　　arable(可耕种的)land, which gives way to new residential

　　blocks, new industrial zones, new financial centers and the

　　other inevitable signs and signatures of economic growth.

　　This,

　　however,

　　is

　　not

　　sustainable

　　growth

　　pattern, especially when China has the world's largest population to

　　feed. So concerned urban planners are starting to note the

　　social and physical effects of diaspora(大移居)when replaced

　　rural communities are forced into the cities.

　　On the other hand, a trend of thought is gradually taking shape and this is the concept of the “garden city”， a combination of country and city that is being proposed by architects and city planners. Hua Li, from Tao Architects, is among the many professionals with such a voice. His argument is supported by a long­term study on this subject. As Hua says, the answer is to preserve patches of productive farmland within urban boundaries. Less transportation means we have fresh agricultural products at lower costs and less carbon emission in the city. And urban farmland can also be showcased for agricultural tourism and education.

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