詞彙 Glossary

淡水濕地 Freshwater wetland

淡水濕地一般包括氾濫平原、池塘、沼澤、水田等等,部份這類的生境只能夠保持季節性的濕潤。本地的淡水濕地主要依靠現時或棄耕後的稻田和魚塘來維持,例如上水的塱原就是香港僅存最大的農耕濕地,或是擁有大片棄耕濕地的沙羅洞。這些淡水生境對某些類別的生物特別重要,例如兩棲類、魚類、蜻蜓等。

Freshwater wetland comprises of floodplains, ponds, swamps, paddy field and so on. Some kinds of this habitat can maintain their moisture seasonally. Nowadays, most of the freshwater wetlands in Hong Kong are developed from both operating and abandoned paddy farmlands and fishponds, example like Long Valley in New Territories, is the largest agricultural wetland remained. The vegetation in such habitat mainly includes weeds and some exotic plants. Their growth rate surpasses other plants, there will be an intense competition for sunlight restricting the photosynthesis, as well as nutrient and oxygen produced. However, different unique species can still be found in this habitat type, like Greater Painted-snipe (Rostratula benghalensis), East Asian Bullfrog (Rana rugulosa), Romer's Treefrog (Philautus romeri), Macropodus hongkongensis.