n.集水，貯水；流域，排水區(qū)；貯水池，承水處
It has a total catchment area of 17 square kilometres. 屯門河集水區(qū)的總面積為17平方公里。
Abstract: The effect of erosion control by agroforestry is an essential factor of little catchment planning. 摘要：農(nóng)林復(fù)合系統(tǒng)的侵蝕控制效益是在小流域整治規(guī)劃中必須考慮的重要因素。
