| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | pond maintenance | Germany | Pond maintenance may focus on water quality and aquatic plant management, especially in urban and suburban areas with ornamental ponds. | 1 |
| 2 | wetlands | Germany | Wetlands are recognized for their importance in flood prevention and water management, and are maintained for their ecological value. | 1 |