The first thing we did was to establish what proportion of the urban land is taken up by private gardens.

我们做的第一件事是调查有多少私人花园占据了城市用地。

For years the group has cultivated small plots of urban land around care homes, nursery schools and the car parks of dental surgeries.

多年来，该集团在养老院、托儿所和牙科手术停车场周围开辟了小块城市土地。