为了实现农用土地的有效利用，减少土壤侵蚀的原地外部不经济性，应延长农用地的承包期。

The period in which agricultural lands are rented by farmers from the country should be prolonged in order to realize full utilization of the land and to remove on site externality of soil erosion.

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我们可以在每个城市建立当地的易货货币来帮助新的公司有效利用废弃的土地、建筑、资源和人力。

We can start by setting up local barter currencies in every city that help new enterprises use wasted land, buildings, resources and people.

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例如，加州一家信息技术公司Accruent帮助大型机构更有效率低利用它们的土地和建筑。

For example, Accruent, a Californian information-technology firm, helps big organisations make more efficient use of their land and buildings.

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