考察地點 Field Sites

北潭涌 Pak Tam Chung

生境 Habitats

地點介紹 Site Description

北潭涌位於西貢東郊野公園及西貢西郊野公園中間。昔日的北潭涌有零星的村落。但除著鄉城遷移,原有村落多已衰微。「涌」是指河道流出海的地方,而在潮漲時,海水卻又會倒流入河道,形成鹹淡水交界的獨特生態環境。北潭涌自然教育徑沿河畔而築,平坦易走,可見到一片片紅樹林及各種濕地生物如招潮蟹及彈塗魚等。沿着教育徑穿過林地及竹林,有一些從前村民常加利用的植物,包括葉面粗糙的錫葉藤(Tetracera asiatica)和樹身芳香的土沉香(Aquilaria sinensis)。沿着北潭涌家樂徑向上游走,在沿途的樹叢和棄耕的農地間可看見豐富品種的蝴蝶,漁護署亦曾錄得107個蝴蝶品種 。

Pak Tam Chung is located between Sai Kung East Country Park and Sai Kung West Country Park. There were scattered villages in the past but most of them declined due to rural-urban migration. "Chung" refers to the place where a river enters the sea, and freshwater and back flowing sea water at high tide mix to create unique brackish habitats. Pak Tam Chung Nature Trail is built along the river and you see mangroves lining the shores as well as other organisms livining there such as mudskippers and fiddler crabs. Further up, the trail continues through some woods and bamboo groves, with many utility plants, such as the rough-leafed Sandpaper Vine(Tetracera asiatica) and Incense Tree(Aquilaria sinensis). Walking along the Pak Tam Chung Family Walk, many species of butterflies can be found in the woods or abandoned agricultural fields and 107 species of butterflies were recorded in survey conducted by AFCD.