湿原

1. Origins, structure, and basic meaning

• Structure: The geographic and ecological noun 湿原 (しつげん) denotes a broad wetland or marsh formed under persistently wet conditions.
• Basic usage: It can describe the landscape as 広い湿原 or form conservation phrases such as 湿原の環境を守る.

2. Common pitfalls and similar expressions

• A water-rich open habitat
  • It is a natural environment formed by persistent water and soil conditions, not simply a field wet from rain.