沙羅洞 / Sha Lo Tung
沙羅洞距離大埔市中心約3.8公里，面積約22.05公頃。由多條溪流分支和溪流兩側的緩衝區組成。溪流的寬度約3-5米，下游部分主要由淺水急流和約1.5米深的水池組成並穿過大片棄耕用地，最後流入位於沙羅洞以北的鶴藪水塘。
The site is located in Sha Lo Tung, which is approximately 3.8km from the centre of the Tai Po New Town to its south. It comprises the stream courses and the 30m buffer areas on both sides of the streams. The stream courses are low gradient streams approximately 3-5m in width, with shallow riffles and pools to 1.5m in depth meander through the abandoned agricultural areas and drain to the Hok Tau reservoir located to the north. The area is about 22.05 hectares.
沙羅洞的淡水河溪是多種蜻蜓的重要生境，在集水區記錄到的物種數量，甚至超過在香港的其他地方。目前在沙羅洞地區記錄到的蜻蜓品種共68種，而全區約有106種，而當中所記錄的大多都是稀有品種，而當中有兩種蜻蜓是該地特有種，沙羅洞也是世界上唯一發現兩種大偽蜻科的地方。淡水河溪不單是蜻蜓繁殖丶產卵和其幼蟲生長的地方，也是其他水生動物（如淡水魚和兩棲動物）的重要棲息地。
The stream courses are important habitats of an extremely diverse community of dragonflies. The number of species recorded in the catchment area is more than any other sites in Hong Kong. Currently, there are 68 species of dragonflies recorded in the Sha Lo Tung area from a total of 106 species known from the whole territory. Many of the species recorded are rare stream specialists. It is the type locality for two endemic species. Sha Lo Tung area is also the only site in the world to possess two Macromidia species, some of which are also newly described in Hong Kong. The stream courses where dragonflies lay their eggs and live through their larvel stage are important habitats for their breeding and development. The stream courses are also important habitats for other aquatic fauna such as fresh water fish and amphibian.
地點資訊 Site Details
相關風險 Degree of Hazards
河岸和附近林地的發展都可能會污染河溪，威脅不同動物的安全，特別是蜻蜓若蟲。
Any development which may lead to deterioration of the water quality of the streams and loss of riparian and nearby woodlands will threaten the survival of the fauna in particular the larval stage of the dragonfly community.