释义 |
Intensive and extensive gardens Intensive and extensive gardensIntensive gardens have thicker soil depths and generally require more management and artificial irrigation systems. The plants chosen for these gardens must thrive in the specific roof environment they inhabit. Intensive gardens are heavier than extensive gardens, requiring more structural support. Extensive gardens have thinner soil depths and require less management and structural support. They do not require artificial irrigation. Plants chosen for extensive gardens are low maintenance, hardy species that do not have demanding habitat requirements. The idea of an extensive planting design is to have a self-sustaining plant community. |